configure

#! /bin/sh
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.69.
#
#
# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
#
#
# This configure script is free software; the Free Software Foundation
# gives unlimited permission to copy, distribute and modify it.
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi


as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='print -r --'
  as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='printf %s\n'
  as_echo_n='printf %s'
else
  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
    as_echo_n='/usr/ucb/echo -n'
  else
    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
    as_echo_n_body='eval
      arg=$1;
      case $arg in #(
      *"$as_nl"*)
	expr "X$arg" : "X\\(.*\\)$as_nl";
	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
      esac;
      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
    '
    export as_echo_n_body
    as_echo_n='sh -c $as_echo_n_body as_echo'
  fi
  export as_echo_body
  as_echo='sh -c $as_echo_body as_echo'
fi

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# IFS
# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" ""	$as_nl"

# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi

# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there.  '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH

# Use a proper internal environment variable to ensure we don't fall
  # into an infinite loop, continuously re-executing ourselves.
  if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
    _as_can_reexec=no; export _as_can_reexec;
    # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
as_fn_exit 255
  fi
  # We don't want this to propagate to other subprocesses.
          { _as_can_reexec=; unset _as_can_reexec;}
if test "x$CONFIG_SHELL" = x; then
  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
else
  case \`(set -o) 2>/dev/null\` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi
"
  as_required="as_fn_return () { (exit \$1); }
as_fn_success () { as_fn_return 0; }
as_fn_failure () { as_fn_return 1; }
as_fn_ret_success () { return 0; }
as_fn_ret_failure () { return 1; }

exitcode=0
as_fn_success || { exitcode=1; echo as_fn_success failed.; }
as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :

else
  exitcode=1; echo positional parameters were not saved.
fi
test x\$exitcode = x0 || exit 1
test -x / || exit 1"
  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
test \$(( 1 + 1 )) = 2 || exit 1"
  if (eval "$as_required") 2>/dev/null; then :
  as_have_required=yes
else
  as_have_required=no
fi
  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :

else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_found=false
for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
  as_found=:
  case $as_dir in #(
	 /*)
	   for as_base in sh bash ksh sh5; do
	     # Try only shells that exist, to save several forks.
	     as_shell=$as_dir/$as_base
	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
  CONFIG_SHELL=$as_shell as_have_required=yes
		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
  break 2
fi
fi
	   done;;
       esac
  as_found=false
done
$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
  CONFIG_SHELL=$SHELL as_have_required=yes
fi; }
IFS=$as_save_IFS


      if test "x$CONFIG_SHELL" != x; then :
  export CONFIG_SHELL
             # We cannot yet assume a decent shell, so we have to provide a
# neutralization value for shells without unset; and this also
# works around shells that cannot unset nonexistent variables.
# Preserve -v and -x to the replacement shell.
BASH_ENV=/dev/null
ENV=/dev/null
(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
case $- in # ((((
  *v*x* | *x*v* ) as_opts=-vx ;;
  *v* ) as_opts=-v ;;
  *x* ) as_opts=-x ;;
  * ) as_opts= ;;
esac
exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
# Admittedly, this is quite paranoid, since all the known shells bail
# out after a failed `exec'.
$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
exit 255
fi

    if test x$as_have_required = xno; then :
  $as_echo "$0: This script requires a shell more modern than all"
  $as_echo "$0: the shells that I found on your system."
  if test x${ZSH_VERSION+set} = xset ; then
    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
  else
    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
$0: including any error possibly output before this
$0: message. Then install a modern shell, or manually run
$0: the script under such a shell if you do have one."
  fi
  exit 1
fi
fi
fi
SHELL=${CONFIG_SHELL-/bin/sh}
export SHELL
# Unset more variables known to interfere with behavior of common tools.
CLICOLOR_FORCE= GREP_OPTIONS=
unset CLICOLOR_FORCE GREP_OPTIONS

## --------------------- ##
## M4sh Shell Functions. ##
## --------------------- ##
# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset

# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p

# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  $as_echo "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error

if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits


  as_lineno_1=$LINENO as_lineno_1a=$LINENO
  as_lineno_2=$LINENO as_lineno_2a=$LINENO
  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
  sed -n '
    p
    /[$]LINENO/=
  ' <$as_myself |
    sed '
      s/[$]LINENO.*/&-/
      t lineno
      b
      :lineno
      N
      :loop
      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
      t loop
      s/-\n.*//
    ' >$as_me.lineno &&
  chmod +x "$as_me.lineno" ||
    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }

  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
  # already done that, so ensure we don't try to do so again and fall
  # in an infinite loop.  This has already happened in practice.
  _as_can_reexec=no; export _as_can_reexec
  # Don't try to exec as it changes $[0], causing all sort of problems
  # (the dirname of $[0] is not the place where we might find the
  # original and so on.  Autoconf is especially sensitive to this).
  . "./$as_me.lineno"
  # Exit status is that of the last command.
  exit
}

ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null

if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi

as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


test -n "$DJDIR" || exec 7<&0 </dev/null
exec 6>&1

# Name of the host.
# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
# so uname gets run too.
ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`

#
# Initializations.
#
ac_default_prefix=/usr/local
ac_clean_files=
ac_config_libobj_dir=.
LIBOBJS=
cross_compiling=no
subdirs=
MFLAGS=
MAKEFLAGS=

# Identity of this package.
PACKAGE_NAME=
PACKAGE_TARNAME=
PACKAGE_VERSION=
PACKAGE_STRING=
PACKAGE_BUGREPORT=
PACKAGE_URL=

ac_unique_file="vsn.mk"
# Factoring default headers for most tests.
ac_includes_default="\
#include <stdio.h>
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
# include <sys/stat.h>
#endif
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
#  include <stdlib.h>
# endif
#endif
#ifdef HAVE_STRING_H
# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
#  include <memory.h>
# endif
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#ifdef HAVE_INTTYPES_H
# include <inttypes.h>
#endif
#ifdef HAVE_STDINT_H
# include <stdint.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif"

ac_subst_vars='LTLIBOBJS
LIBOBJS
CFLAGS32
CC32
JAVAC
CPU_SUP_LIBS
os_mon_programs
DTRACE_ENABLED_2STEP
DTRACE_ENABLED
DTRACE_CPP
DTRACE
EMU_CC
ERTS_BUILD_FALLBACK_POLL
FLAVORS
PRIMARY_FLAVOR
JIT_ARCH
JIT_ENABLED
ac_ct_CXX
M4
LIBRT
BITS64
HAVE_VALGRIND
LIBSCTP
SYSTEMD_DAEMON_LIBS
SOCKET_LIBS
USE_ESOCK
Z_LIB
TERMCAP_LIB
THR_DEFS
THR_LIBS
EMU_LOCK_CHECKING
EMU_THR_DEFS
EMU_THR_LIBS
EMU_THR_X_LIBS
EMU_THR_LIB_NAME
TYPES
DIRTY_SCHEDULER_TEST
ETHR_X86_SSE2_ASM
ETHR_THR_LIB_BASE_DIR
ETHR_THR_LIB_BASE
ETHR_DEFS
ETHR_LIB_NAME
ETHR_LIBS
ETHR_X_LIBS
ERTS_INTERNAL_X_LIBS
DEXPORT
ERLANG_OSTYPE
HCFLAGS
HCC
INSTALL_DIR
INSTALL_DATA
INSTALL_SCRIPT
INSTALL_PROGRAM
XMLLINT
FOP
XSLTPROC
LN_S
PERL
YFLAGS
YACC
CP
MKDIR
LIBCARBON
ARCH
OPSYS
EXTERNAL_WORD_SIZE
EGREP
GREP
PROFILE_COMPILER
USE_PGO
XCRUN
LLVM_PROFDATA
WERRORFLAGS
WFLAGS
DEBUG_CFLAGS
DEBUG_FLAGS
ERTS_CONFIG_H_IDIR
MIXED_MINGW
MIXED_VC
GCC
STATIC_DRIVERS
STATIC_NIFS
OTP_VERSION
SYSTEM_VSN
OTP_RELEASE
USE_VM_PROBES
ENABLE_ALLOC_TYPE_VARS
OBJEXT
EXEEXT
ac_ct_CC
CROSS_COMPILING
host_os
host_vendor
host_cpu
host
build_os
build_vendor
build_cpu
build
erl_xcomp_dlsym_brk_wrappers
erl_xcomp_after_morecore_hook
erl_xcomp_clock_gettime_cpu_time
erl_xcomp_gethrvtime_procfs_ioctl
erl_xcomp_getaddrinfo
erl_xcomp_reliable_fpe
erl_xcomp_putenv_copy
erl_xcomp_kqueue
erl_xcomp_poll
erl_xcomp_linux_usable_sigaltstack
erl_xcomp_linux_usable_sigusrx
erl_xcomp_linux_nptl
erl_xcomp_double_middle_endian
erl_xcomp_bigendian
erl_xcomp_isysroot
erl_xcomp_sysroot
GETCONF
AR
RANLIB
LFS_LIBS
LFS_LDFLAGS
LFS_CFLAGS
DED_LD_FLAG_RUNTIME_LIBRARY_PATH
DED_LDFLAGS
DED_LD
LDFLAGS
LD
CXXFLAGS
CXX
CPPFLAGS
CPP
CFLAG_RUNTIME_LIBRARY_PATH
STATIC_CFLAGS
CFLAGS
CC
ERL_TOP
target_alias
host_alias
build_alias
LIBS
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ECHO_N
ECHO_C
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mandir
localedir
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psdir
pdfdir
dvidir
htmldir
infodir
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includedir
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localstatedir
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libexecdir
sbindir
bindir
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exec_prefix
PACKAGE_URL
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PACKAGE_STRING
PACKAGE_VERSION
PACKAGE_TARNAME
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PATH_SEPARATOR
SHELL'
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enable_lock_counter
enable_kernel_poll
enable_sctp
enable_jit
enable_m64_build
enable_m32_build
with_dynamic_trace
enable_vm_probes
with_assumed_cache_line_size
enable_systemd
with_microstate_accounting
enable_static_nifs
enable_static_drivers
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with_spectre_mitigation
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CC
CFLAGS
STATIC_CFLAGS
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CXX
CXXFLAGS
LD
LDFLAGS
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AR
GETCONF
erl_xcomp_sysroot
erl_xcomp_isysroot
erl_xcomp_bigendian
erl_xcomp_double_middle_endian
erl_xcomp_linux_nptl
erl_xcomp_linux_usable_sigusrx
erl_xcomp_linux_usable_sigaltstack
erl_xcomp_poll
erl_xcomp_kqueue
erl_xcomp_putenv_copy
erl_xcomp_reliable_fpe
erl_xcomp_getaddrinfo
erl_xcomp_gethrvtime_procfs_ioctl
erl_xcomp_clock_gettime_cpu_time
erl_xcomp_after_morecore_hook
erl_xcomp_dlsym_brk_wrappers
YACC
YFLAGS
CCC'


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ac_unrecognized_sep=
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dvidir='${docdir}'
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psdir='${docdir}'
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# There might be people who depend on the old broken behavior: `$host'
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if test "x$host_alias" != x; then
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    cross_compiling=maybe
  elif test "x$build_alias" != "x$host_alias"; then
    cross_compiling=yes
  fi
fi

ac_tool_prefix=
test -n "$host_alias" && ac_tool_prefix=$host_alias-

test "$silent" = yes && exec 6>/dev/null


ac_pwd=`pwd` && test -n "$ac_pwd" &&
ac_ls_di=`ls -di .` &&
ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
  as_fn_error $? "working directory cannot be determined"
test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
  as_fn_error $? "pwd does not report name of working directory"


# Find the source files, if location was not specified.
if test -z "$srcdir"; then
  ac_srcdir_defaulted=yes
  # Try the directory containing this script, then the parent directory.
  ac_confdir=`$as_dirname -- "$as_myself" ||
$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_myself" : 'X\(//\)[^/]' \| \
	 X"$as_myself" : 'X\(//\)$' \| \
	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_myself" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
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	  /^X\(\/\/\)$/{
	    s//\1/
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	  /^X\(\/\).*/{
	    s//\1/
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	  s/.*/./; q'`
  srcdir=$ac_confdir
  if test ! -r "$srcdir/$ac_unique_file"; then
    srcdir=..
  fi
else
  ac_srcdir_defaulted=no
fi
if test ! -r "$srcdir/$ac_unique_file"; then
  test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
  as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
fi
ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
ac_abs_confdir=`(
	cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
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# When building in place, set srcdir=.
if test "$ac_abs_confdir" = "$ac_pwd"; then
  srcdir=.
fi
# Remove unnecessary trailing slashes from srcdir.
# Double slashes in file names in object file debugging info
# mess up M-x gdb in Emacs.
case $srcdir in
*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
esac
for ac_var in $ac_precious_vars; do
  eval ac_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_env_${ac_var}_value=\$${ac_var}
  eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
  eval ac_cv_env_${ac_var}_value=\$${ac_var}
done

#
# Report the --help message.
#
if test "$ac_init_help" = "long"; then
  # Omit some internal or obsolete options to make the list less imposing.
  # This message is too long to be a string in the A/UX 3.1 sh.
  cat <<_ACEOF
\`configure' configures this package to adapt to many kinds of systems.

Usage: $0 [OPTION]... [VAR=VALUE]...

To assign environment variables (e.g., CC, CFLAGS...), specify them as
VAR=VALUE.  See below for descriptions of some of the useful variables.

Defaults for the options are specified in brackets.

Configuration:
  -h, --help              display this help and exit
      --help=short        display options specific to this package
      --help=recursive    display the short help of all the included packages
  -V, --version           display version information and exit
  -q, --quiet, --silent   do not print \`checking ...' messages
      --cache-file=FILE   cache test results in FILE [disabled]
  -C, --config-cache      alias for \`--cache-file=config.cache'
  -n, --no-create         do not create output files
      --srcdir=DIR        find the sources in DIR [configure dir or \`..']

Installation directories:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [PREFIX]

By default, \`make install' will install all the files in
\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc.  You can specify
an installation prefix other than \`$ac_default_prefix' using \`--prefix',
for instance \`--prefix=\$HOME'.

For better control, use the options below.

Fine tuning of the installation directories:
  --bindir=DIR            user executables [EPREFIX/bin]
  --sbindir=DIR           system admin executables [EPREFIX/sbin]
  --libexecdir=DIR        program executables [EPREFIX/libexec]
  --sysconfdir=DIR        read-only single-machine data [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data [PREFIX/var]
  --runstatedir=DIR       modifiable per-process data [LOCALSTATEDIR/run]
  --libdir=DIR            object code libraries [EPREFIX/lib]
  --includedir=DIR        C header files [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc [/usr/include]
  --datarootdir=DIR       read-only arch.-independent data root [PREFIX/share]
  --datadir=DIR           read-only architecture-independent data [DATAROOTDIR]
  --infodir=DIR           info documentation [DATAROOTDIR/info]
  --localedir=DIR         locale-dependent data [DATAROOTDIR/locale]
  --mandir=DIR            man documentation [DATAROOTDIR/man]
  --docdir=DIR            documentation root [DATAROOTDIR/doc/PACKAGE]
  --htmldir=DIR           html documentation [DOCDIR]
  --dvidir=DIR            dvi documentation [DOCDIR]
  --pdfdir=DIR            pdf documentation [DOCDIR]
  --psdir=DIR             ps documentation [DOCDIR]
_ACEOF

  cat <<\_ACEOF

System types:
  --build=BUILD     configure for building on BUILD [guessed]
  --host=HOST       cross-compile to build programs to run on HOST [BUILD]
_ACEOF
fi

if test -n "$ac_init_help"; then

  cat <<\_ACEOF

Optional Features:
  --disable-option-checking  ignore unrecognized --enable/--with options
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --enable-bootstrap-only enable bootstrap only configuration
  --enable-dirty-schedulers-test
                          enable dirty scheduler test (for debugging purposes)
  --disable-smp-require-native-atomics
                          disable the SMP requirement of a native atomic
                          implementation
  --enable-lock-checking  enable lock checking
  --enable-lock-counter   enable lock counters
  --enable-kernel-poll    enable kernel poll support
  --disable-kernel-poll   disable kernel poll support
  --enable-sctp           enable sctp support (default) to on demand load the
                          SCTP library in runtime if needed
  --enable-sctp=lib       enable sctp support to link against the SCTP library
  --disable-sctp          disable sctp support
  --enable-jit            enable JIT support
  --disable-jit           disable JIT support
  --enable-m64-build      build 64bit binaries using the -m64 flag to (g)cc
  --enable-m32-build      build 32bit binaries using the -m32 flag to (g)cc
  --enable-vm-probes      add dynamic trace probes to the Beam VM (only
                          possible if --with-dynamic-trace is enabled, and
                          then default)
  --enable-systemd        enable systemd support in epmd
  --enable-static-nifs    link nifs statically. If yes then all nifs in all
                          Erlang/OTP applications will be statically linked
                          into the main binary. It is also possible to give a
                          list of nifs that should be linked statically. The
                          list should be a comma separated and contain the
                          absolute path to a .a archive for each nif that is
                          to be statically linked. The name of the .a archive
                          has to be the same as the name of the nif. Note that
                          you have to link any external dependencies that the
                          nifs have to the main binary, so for the crypto nif
                          you want to pass LIBS=-lcrypto to configure.
  --enable-static-drivers comma separated list of linked-in drivers to link
                          statically with the main binary. The list should
                          contain the absolute path to a .a archive for each
                          driver that is to be statically linked. The name of
                          the .a archive has to be the same as the name of the
                          driver.
  --enable-pgo            build erts using PGO (profile guided optimization)
  --disable-native-ethr-impls
                          disable native ethread implementations
  --enable-x86-out-of-order
                          enable x86/x84_64 out of order support (default
                          disabled)
  --enable-prefer-gcc-native-ethr-impls
                          prefer gcc native ethread implementations
  --enable-trust-gcc-atomic-builtins-memory-barriers
                          trust gcc atomic builtins memory barriers
  --enable-ppc-lwsync-instruction
                          enable use of powerpc lwsync instruction
  --disable-ppc-lwsync-instruction
                          disable use of powerpc lwsync instruction
  --enable-builtin-zlib   force use of our own built-in zlib
  --enable-esock          enable builtin experimental socket (as a nif)
                          support (default)
  --disable-esock         disable builtin experimental socket (as a nif)
                          support
  --enable-esock-rcvsndtimeo
                          enable use of the option(s) rcvtimeo and sndtimeo
  --disable-esock-rcvsndtimeo
                          disable use of the option(s) rcvtimeo and sndtimeo
                          (default)
  --enable-esock-socket-registry
                          enable use of the socket registry by default
                          (default)
      --disable-esock-socket-registry
                          disable use of the socket registry by default
  --enable-prefer-elapsed-monotonic-time-during-suspend
                          Prefer an OS monotonic time source with elapsed time
                          during suspend
  --disable-prefer-elapsed-monotonic-time-during-suspend
                          Do not prefer an OS monotonic time source with
                          elapsed time during suspend
  --enable-gettimeofday-as-os-system-time
                          Force usage of gettimeofday() for OS system time
  --enable-sanitizers[=comma-separated list of sanitizers]
                          Default=address,undefined

Optional Packages:
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --with-termcap          use termcap (default)
  --without-termcap       do not use any termcap libraries
                          (ncurses,curses,termcap,termlib)
  --with-dynamic-trace={dtrace|lttng|systemtap}
                          specify use of dynamic trace framework, dtrace,
                          lttng or systemtap
  --without-dynamic-trace don't enable any dynamic tracing (default)
  --with-assumed-cache-line-size=SIZE
                          specify assumed cache line size in bytes (valid
                          values are powers of two between and including 16
                          and 8192; default is 64)
  --with-microstate-accounting={yes|extra}
                          enable microstate account, possibly with extra
                          detailed states
  --without-microstate-accounting
                          don't enable microstate accounting
  --with-ets-write-concurrency-locks={8|16|32|64|128|256}
                          specify how many locks the write_concurrency option
                          for ets should use.
  --without-ets-write-concurrency-locks
                          use the default number of write_concurrency locks
                          (default)
  --with-spectre-mitigation={yes|incomplete}
                          enable spectre mitigation, either fully or with
                          mitigations disabled in a handful places like the
                          interpreter
      --without-spectre-mitigation
                          build without spectre mitigation
  --with-libatomic_ops=PATH
                          specify and prefer usage of libatomic_ops in the
                          ethread library
  --with-sparc-memory-order=TSO|PSO|RMO
                          specify sparc memory order (defaults to RMO)
  --with-threadnames      use pthread_setname to set the thread names
                          (default)
  --without-threadnames   do not set any thread names
  --with-esock-counter-size=SZ
                          Size of the esock counters, in number of bits: 16 |
                          24 | 32 | 48 | 64; default is 64
  --with-clock-resolution=high|low|default
                          specify wanted clock resolution
  --with-clock-gettime-realtime-id=CLOCKID
                          specify clock id to use with clock_gettime() for
                          realtime time)
  --with-clock-gettime-monotonic-id=CLOCKID
                          specify clock id to use with clock_gettime() for
                          monotonic time)
  --with-javac=JAVAC      specify Java compiler to use
  --with-javac            use a Java compiler if found (default)
  --without-javac         don't use any Java compiler

Some influential environment variables:
  ERL_TOP     Erlang/OTP top source directory
  CC          C compiler
  CFLAGS      C compiler flags
  STATIC_CFLAGS
              C compiler static flags
  CFLAG_RUNTIME_LIBRARY_PATH
              runtime library path linker flag passed via C compiler
  CPP         C/C++ preprocessor
  CPPFLAGS    C/C++ preprocessor flags
  CXX         C++ compiler
  CXXFLAGS    C++ compiler flags
  LD          linker (is often overridden by configure)
  LDFLAGS     linker flags (can be risky to set since LD may be overridden by
              configure)
  LIBS        libraries
  DED_LD      linker for Dynamic Erlang Drivers (set all DED_LD* variables or
              none)
  DED_LDFLAGS linker flags for Dynamic Erlang Drivers (set all DED_LD*
              variables or none)
  DED_LD_FLAG_RUNTIME_LIBRARY_PATH
              runtime library path linker flag for Dynamic Erlang Drivers (set
              all DED_LD* variables or none)
  LFS_CFLAGS  large file support C compiler flags (set all LFS_* variables or
              none)
  LFS_LDFLAGS large file support linker flags (set all LFS_* variables or
              none)
  LFS_LIBS    large file support libraries (set all LFS_* variables or none)
  RANLIB      ranlib
  AR          ar
  GETCONF     getconf
  erl_xcomp_sysroot
              Absolute cross system root path (only used when cross compiling)
  erl_xcomp_isysroot
              Absolute cross system root include path (only used when cross
              compiling)
  erl_xcomp_bigendian
              big endian system: yes|no (only used when cross compiling)
  erl_xcomp_double_middle_endian
              double-middle-endian system: yes|no (only used when cross
              compiling)
  erl_xcomp_linux_nptl
              have Native POSIX Thread Library: yes|no (only used when cross
              compiling)
  erl_xcomp_linux_usable_sigusrx
              SIGUSR1 and SIGUSR2 can be used: yes|no (only used when cross
              compiling)
  erl_xcomp_linux_usable_sigaltstack
              have working sigaltstack(): yes|no (only used when cross
              compiling)
  erl_xcomp_poll
              have working poll(): yes|no (only used when cross compiling)
  erl_xcomp_kqueue
              have working kqueue(): yes|no (only used when cross compiling)
  erl_xcomp_putenv_copy
              putenv() stores key-value copy: yes|no (only used when cross
              compiling)
  erl_xcomp_reliable_fpe
              have reliable floating point exceptions: yes|no (only used when
              cross compiling)
  erl_xcomp_getaddrinfo
              have working getaddrinfo() for both IPv4 and IPv6: yes|no (only
              used when cross compiling)
  erl_xcomp_gethrvtime_procfs_ioctl
              have working gethrvtime() which can be used with procfs ioctl():
              yes|no (only used when cross compiling)
  erl_xcomp_clock_gettime_cpu_time
              clock_gettime() can be used for retrieving process CPU time:
              yes|no (only used when cross compiling)
  erl_xcomp_after_morecore_hook
              __after_morecore_hook can track malloc()s core memory usage:
              yes|no (only used when cross compiling)
  erl_xcomp_dlsym_brk_wrappers
              dlsym(RTLD_NEXT, _) brk wrappers can track malloc()s core memory
              usage: yes|no (only used when cross compiling)
  YACC        The `Yet Another Compiler Compiler' implementation to use.
              Defaults to the first program found out of: `bison -y', `byacc',
              `yacc'.
  YFLAGS      The list of arguments that will be passed by default to $YACC.
              This script will default YFLAGS to the empty string to avoid a
              default value of `-d' given by some make applications.

Use these variables to override the choices made by `configure' or to help
it to find libraries and programs with nonstandard names/locations.

Report bugs to the package provider.
_ACEOF
ac_status=$?
fi

if test "$ac_init_help" = "recursive"; then
  # If there are subdirs, report their specific --help.
  for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
    test -d "$ac_dir" ||
      { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
      continue
    ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix

    cd "$ac_dir" || { ac_status=$?; continue; }
    # Check for guested configure.
    if test -f "$ac_srcdir/configure.gnu"; then
      echo &&
      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
    elif test -f "$ac_srcdir/configure"; then
      echo &&
      $SHELL "$ac_srcdir/configure" --help=recursive
    else
      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi || ac_status=$?
    cd "$ac_pwd" || { ac_status=$?; break; }
  done
fi

test -n "$ac_init_help" && exit $ac_status
if $ac_init_version; then
  cat <<\_ACEOF
configure
generated by GNU Autoconf 2.69

Copyright (C) 2012 Free Software Foundation, Inc.
This configure script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it.
_ACEOF
  exit
fi

## ------------------------ ##
## Autoconf initialization. ##
## ------------------------ ##

# ac_fn_c_try_compile LINENO
# --------------------------
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ac_fn_c_try_compile ()
{
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  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
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  ac_status=$?
  if test -s conftest.err; then
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  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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  $as_echo "$as_me: failed program was:" >&5
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	ac_retval=1
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} # ac_fn_c_try_compile

# ac_fn_c_try_link LINENO
# -----------------------
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ac_fn_c_try_link ()
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# ac_fn_c_try_run LINENO
# ----------------------
# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
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# ac_fn_c_compute_int LINENO EXPR VAR INCLUDES
# --------------------------------------------
# Tries to find the compile-time value of EXPR in a program that includes
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# computed
ac_fn_c_compute_int ()
{
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cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
static int test_array [1 - 2 * !(($2) >= 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_lo=0 ac_mid=0
  while :; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_hi=$ac_mid; break
else
  as_fn_arith $ac_mid + 1 && ac_lo=$as_val
			if test $ac_lo -le $ac_mid; then
			  ac_lo= ac_hi=
			  break
			fi
			as_fn_arith 2 '*' $ac_mid + 1 && ac_mid=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
static int test_array [1 - 2 * !(($2) < 0)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_hi=-1 ac_mid=-1
  while :; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
static int test_array [1 - 2 * !(($2) >= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_lo=$ac_mid; break
else
  as_fn_arith '(' $ac_mid ')' - 1 && ac_hi=$as_val
			if test $ac_mid -le $ac_hi; then
			  ac_lo= ac_hi=
			  break
			fi
			as_fn_arith 2 '*' $ac_mid && ac_mid=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  done
else
  ac_lo= ac_hi=
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
# Binary search between lo and hi bounds.
while test "x$ac_lo" != "x$ac_hi"; do
  as_fn_arith '(' $ac_hi - $ac_lo ')' / 2 + $ac_lo && ac_mid=$as_val
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
static int test_array [1 - 2 * !(($2) <= $ac_mid)];
test_array [0] = 0;
return test_array [0];

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_hi=$ac_mid
else
  as_fn_arith '(' $ac_mid ')' + 1 && ac_lo=$as_val
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
done
case $ac_lo in #((
?*) eval "$3=\$ac_lo"; ac_retval=0 ;;
'') ac_retval=1 ;;
esac
  else
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
static long int longval () { return $2; }
static unsigned long int ulongval () { return $2; }
#include <stdio.h>
#include <stdlib.h>
int
main ()
{

  FILE *f = fopen ("conftest.val", "w");
  if (! f)
    return 1;
  if (($2) < 0)
    {
      long int i = longval ();
      if (i != ($2))
	return 1;
      fprintf (f, "%ld", i);
    }
  else
    {
      unsigned long int i = ulongval ();
      if (i != ($2))
	return 1;
      fprintf (f, "%lu", i);
    }
  /* Do not output a trailing newline, as this causes \r\n confusion
     on some platforms.  */
  return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  echo >>conftest.val; read $3 <conftest.val; ac_retval=0
else
  ac_retval=1
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
rm -f conftest.val

  fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_compute_int

# ac_fn_c_try_cpp LINENO
# ----------------------
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
ac_fn_c_try_cpp ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if { { ac_try="$ac_cpp conftest.$ac_ext"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } > conftest.i && {
	 test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
	 test ! -s conftest.err
       }; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

    ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_c_try_cpp

# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists and can be compiled using the include files in
# INCLUDES, setting the cache variable VAR accordingly.
ac_fn_c_check_header_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_header_compile

# ac_fn_c_check_func LINENO FUNC VAR
# ----------------------------------
# Tests whether FUNC exists, setting the cache variable VAR accordingly
ac_fn_c_check_func ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
#define $2 innocuous_$2

/* System header to define __stub macros and hopefully few prototypes,
    which can conflict with char $2 (); below.
    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
    <limits.h> exists even on freestanding compilers.  */

#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif

#undef $2

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char $2 ();
/* The GNU C library defines this for functions which it implements
    to always fail with ENOSYS.  Some functions are actually named
    something starting with __ and the normal name is an alias.  */
#if defined __stub_$2 || defined __stub___$2
choke me
#endif

int
main ()
{
return $2 ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_func

# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
# -------------------------------------------------------
# Tests whether HEADER exists, giving a warning if it cannot be compiled using
# the include files in INCLUDES and setting the cache variable VAR
# accordingly.
ac_fn_c_check_header_mongrel ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  if eval \${$3+:} false; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
else
  # Is the header compilable?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
$as_echo_n "checking $2 usability... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
#include <$2>
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_header_compiler=yes
else
  ac_header_compiler=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
$as_echo "$ac_header_compiler" >&6; }

# Is the header present?
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
$as_echo_n "checking $2 presence... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <$2>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  ac_header_preproc=yes
else
  ac_header_preproc=no
fi
rm -f conftest.err conftest.i conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
$as_echo "$ac_header_preproc" >&6; }

# So?  What about this header?
case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
  yes:no: )
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
    ;;
  no:yes:* )
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     check for missing prerequisite headers?" >&5
$as_echo "$as_me: WARNING: $2:     check for missing prerequisite headers?" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&5
$as_echo "$as_me: WARNING: $2:     section \"Present But Cannot Be Compiled\"" >&2;}
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
    ;;
esac
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  eval "$3=\$ac_header_compiler"
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_header_mongrel

# ac_fn_c_check_member LINENO AGGR MEMBER VAR INCLUDES
# ----------------------------------------------------
# Tries to find if the field MEMBER exists in type AGGR, after including
# INCLUDES, setting cache variable VAR accordingly.
ac_fn_c_check_member ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2.$3" >&5
$as_echo_n "checking for $2.$3... " >&6; }
if eval \${$4+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$5
int
main ()
{
static $2 ac_aggr;
if (ac_aggr.$3)
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$4=yes"
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$5
int
main ()
{
static $2 ac_aggr;
if (sizeof ac_aggr.$3)
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$4=yes"
else
  eval "$4=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$4
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_member

# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
# ---------------------------------------------
# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
# accordingly.
ac_fn_c_check_decl ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  as_decl_name=`echo $2|sed 's/ *(.*//'`
  as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
#ifndef $as_decl_name
#ifdef __cplusplus
  (void) $as_decl_use;
#else
  (void) $as_decl_name;
#endif
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$3=yes"
else
  eval "$3=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_decl

# ac_fn_c_check_type LINENO TYPE VAR INCLUDES
# -------------------------------------------
# Tests whether TYPE exists after having included INCLUDES, setting cache
# variable VAR accordingly.
ac_fn_c_check_type ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
$as_echo_n "checking for $2... " >&6; }
if eval \${$3+:} false; then :
  $as_echo_n "(cached) " >&6
else
  eval "$3=no"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
if (sizeof ($2))
	 return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$4
int
main ()
{
if (sizeof (($2)))
	    return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  eval "$3=yes"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$3
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno

} # ac_fn_c_check_type

# ac_fn_cxx_try_compile LINENO
# ----------------------------
# Try to compile conftest.$ac_ext, and return whether this succeeded.
ac_fn_cxx_try_compile ()
{
  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
  rm -f conftest.$ac_objext
  if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    grep -v '^ *+' conftest.err >conftest.er1
    cat conftest.er1 >&5
    mv -f conftest.er1 conftest.err
  fi
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && {
	 test -z "$ac_cxx_werror_flag" ||
	 test ! -s conftest.err
       } && test -s conftest.$ac_objext; then :
  ac_retval=0
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

	ac_retval=1
fi
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
  as_fn_set_status $ac_retval

} # ac_fn_cxx_try_compile
cat >config.log <<_ACEOF
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by $as_me, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  $ $0 $@

_ACEOF
exec 5>>config.log
{
cat <<_ASUNAME
## --------- ##
## Platform. ##
## --------- ##

hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
uname -m = `(uname -m) 2>/dev/null || echo unknown`
uname -r = `(uname -r) 2>/dev/null || echo unknown`
uname -s = `(uname -s) 2>/dev/null || echo unknown`
uname -v = `(uname -v) 2>/dev/null || echo unknown`

/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
/bin/uname -X     = `(/bin/uname -X) 2>/dev/null     || echo unknown`

/bin/arch              = `(/bin/arch) 2>/dev/null              || echo unknown`
/usr/bin/arch -k       = `(/usr/bin/arch -k) 2>/dev/null       || echo unknown`
/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
/usr/bin/hostinfo      = `(/usr/bin/hostinfo) 2>/dev/null      || echo unknown`
/bin/machine           = `(/bin/machine) 2>/dev/null           || echo unknown`
/usr/bin/oslevel       = `(/usr/bin/oslevel) 2>/dev/null       || echo unknown`
/bin/universe          = `(/bin/universe) 2>/dev/null          || echo unknown`

_ASUNAME

as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    $as_echo "PATH: $as_dir"
  done
IFS=$as_save_IFS

} >&5

cat >&5 <<_ACEOF


## ----------- ##
## Core tests. ##
## ----------- ##

_ACEOF


# Keep a trace of the command line.
# Strip out --no-create and --no-recursion so they do not pile up.
# Strip out --silent because we don't want to record it for future runs.
# Also quote any args containing shell meta-characters.
# Make two passes to allow for proper duplicate-argument suppression.
ac_configure_args=
ac_configure_args0=
ac_configure_args1=
ac_must_keep_next=false
for ac_pass in 1 2
do
  for ac_arg
  do
    case $ac_arg in
    -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
    -q | -quiet | --quiet | --quie | --qui | --qu | --q \
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *\'*)
      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
    2)
      as_fn_append ac_configure_args1 " '$ac_arg'"
      if test $ac_must_keep_next = true; then
	ac_must_keep_next=false # Got value, back to normal.
      else
	case $ac_arg in
	  *=* | --config-cache | -C | -disable-* | --disable-* \
	  | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
	  | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
	  | -with-* | --with-* | -without-* | --without-* | --x)
	    case "$ac_configure_args0 " in
	      "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
	    esac
	    ;;
	  -* ) ac_must_keep_next=true ;;
	esac
      fi
      as_fn_append ac_configure_args " '$ac_arg'"
      ;;
    esac
  done
done
{ ac_configure_args0=; unset ac_configure_args0;}
{ ac_configure_args1=; unset ac_configure_args1;}

# When interrupted or exit'd, cleanup temporary files, and complete
# config.log.  We remove comments because anyway the quotes in there
# would cause problems or look ugly.
# WARNING: Use '\'' to represent an apostrophe within the trap.
# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
trap 'exit_status=$?
  # Save into config.log some information that might help in debugging.
  {
    echo

    $as_echo "## ---------------- ##
## Cache variables. ##
## ---------------- ##"
    echo
    # The following way of writing the cache mishandles newlines in values,
(
  for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done
  (set) 2>&1 |
    case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      sed -n \
	"s/'\''/'\''\\\\'\'''\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
      ;; #(
    *)
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
)
    echo

    $as_echo "## ----------------- ##
## Output variables. ##
## ----------------- ##"
    echo
    for ac_var in $ac_subst_vars
    do
      eval ac_val=\$$ac_var
      case $ac_val in
      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
      esac
      $as_echo "$ac_var='\''$ac_val'\''"
    done | sort
    echo

    if test -n "$ac_subst_files"; then
      $as_echo "## ------------------- ##
## File substitutions. ##
## ------------------- ##"
      echo
      for ac_var in $ac_subst_files
      do
	eval ac_val=\$$ac_var
	case $ac_val in
	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
	esac
	$as_echo "$ac_var='\''$ac_val'\''"
      done | sort
      echo
    fi

    if test -s confdefs.h; then
      $as_echo "## ----------- ##
## confdefs.h. ##
## ----------- ##"
      echo
      cat confdefs.h
      echo
    fi
    test "$ac_signal" != 0 &&
      $as_echo "$as_me: caught signal $ac_signal"
    $as_echo "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core core.conftest.* &&
    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
    exit $exit_status
' 0
for ac_signal in 1 2 13 15; do
  trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
done
ac_signal=0

# confdefs.h avoids OS command line length limits that DEFS can exceed.
rm -f -r conftest* confdefs.h

$as_echo "/* confdefs.h */" > confdefs.h

# Predefined preprocessor variables.

cat >>confdefs.h <<_ACEOF
#define PACKAGE_NAME "$PACKAGE_NAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_VERSION "$PACKAGE_VERSION"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_STRING "$PACKAGE_STRING"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
_ACEOF

cat >>confdefs.h <<_ACEOF
#define PACKAGE_URL "$PACKAGE_URL"
_ACEOF


# Let the site file select an alternate cache file if it wants to.
# Prefer an explicitly selected file to automatically selected ones.
ac_site_file1=NONE
ac_site_file2=NONE
if test -n "$CONFIG_SITE"; then
  # We do not want a PATH search for config.site.
  case $CONFIG_SITE in #((
    -*)  ac_site_file1=./$CONFIG_SITE;;
    */*) ac_site_file1=$CONFIG_SITE;;
    *)   ac_site_file1=./$CONFIG_SITE;;
  esac
elif test "x$prefix" != xNONE; then
  ac_site_file1=$prefix/share/config.site
  ac_site_file2=$prefix/etc/config.site
else
  ac_site_file1=$ac_default_prefix/share/config.site
  ac_site_file2=$ac_default_prefix/etc/config.site
fi
for ac_site_file in "$ac_site_file1" "$ac_site_file2"
do
  test "x$ac_site_file" = xNONE && continue
  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
$as_echo "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file" \
      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "failed to load site script $ac_site_file
See \`config.log' for more details" "$LINENO" 5; }
  fi
done

if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special files
  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
$as_echo "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . "$cache_file";;
      *)                      . "./$cache_file";;
    esac
  fi
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
$as_echo "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
fi

# Check that the precious variables saved in the cache have kept the same
# value.
ac_cache_corrupted=false
for ac_var in $ac_precious_vars; do
  eval ac_old_set=\$ac_cv_env_${ac_var}_set
  eval ac_new_set=\$ac_env_${ac_var}_set
  eval ac_old_val=\$ac_cv_env_${ac_var}_value
  eval ac_new_val=\$ac_env_${ac_var}_value
  case $ac_old_set,$ac_new_set in
    set,)
      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
      if test "x$ac_old_val" != "x$ac_new_val"; then
	# differences in whitespace do not lead to failure.
	ac_old_val_w=`echo x $ac_old_val`
	ac_new_val_w=`echo x $ac_new_val`
	if test "$ac_old_val_w" != "$ac_new_val_w"; then
	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
	  ac_cache_corrupted=:
	else
	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
	  eval $ac_var=\$ac_old_val
	fi
	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
      *" '$ac_arg' "*) ;; # Avoid dups.  Use of quotes ensures accuracy.
      *) as_fn_append ac_configure_args " '$ac_arg'" ;;
    esac
  fi
done
if $ac_cache_corrupted; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
fi
## -------------------- ##
## Main body of script. ##
## -------------------- ##

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

















































no_werror_CFLAGS=$(echo "$CFLAGS" | sed 's/-Werror\([^=]\|$\)/ /g')
if test "$CFLAGS" != "$no_werror_CFLAGS"; then
   CFLAGS="$no_werror_CFLAGS"
   WERRORFLAGS=-Werror
fi

#### Make srcdir absolute, if it isn't already.  It's important to
#### avoid running the path through pwd unnecessary, since pwd can
#### give you automounter prefixes, which can go away.
case "${srcdir}" in
  /* ) ;;
  . )
    ## We may be able to use the $PWD environment variable to make this
    ## absolute.  But sometimes PWD is inaccurate.
    ## Make sure CDPATH doesn't affect cd (in case PWD is relative).
    CDPATH=
    if test "${PWD}" != "" && test "`(cd ${PWD} ; sh -c pwd)`" = "`pwd`"  ;
    then
      srcdir="$PWD"
    else
      srcdir="`(cd ${srcdir}; pwd)`"
    fi
  ;;
  *  ) srcdir="`(cd ${srcdir}; pwd)`" ;;
esac

## Now, make sure that ERL_TOP is set and is the same as srcdir
##
if test -z "$ERL_TOP" || test ! -d $ERL_TOP ; then
  as_fn_error $? "You need to set the environment variable ERL_TOP!" "$LINENO" 5
fi
if test x"${ERL_TOP}/erts" != x"$srcdir"; then
  as_fn_error $? "You need to run configure with argument --srcdir=${ERL_TOP}/erts" "$LINENO" 5
fi
erl_top=${ERL_TOP}

# echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
# echo X
# echo "X srcdir  = $srcdir"
# echo "X ERL_TOP = $ERL_TOP"
# echo X
# echo XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

ac_aux_dir=
for ac_dir in $srcdir/autoconf; do
  if test -f "$ac_dir/install-sh"; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install-sh -c"
    break
  elif test -f "$ac_dir/install.sh"; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/install.sh -c"
    break
  elif test -f "$ac_dir/shtool"; then
    ac_aux_dir=$ac_dir
    ac_install_sh="$ac_aux_dir/shtool install -c"
    break
  fi
done
if test -z "$ac_aux_dir"; then
  as_fn_error $? "cannot find install-sh, install.sh, or shtool in $srcdir/autoconf" "$LINENO" 5
fi

# These three variables are undocumented and unsupported,
# and are intended to be withdrawn in a future Autoconf release.
# They can cause serious problems if a builder's source tree is in a directory
# whose full name contains unusual characters.
ac_config_guess="$SHELL $ac_aux_dir/config.guess"  # Please don't use this var.
ac_config_sub="$SHELL $ac_aux_dir/config.sub"  # Please don't use this var.
ac_configure="$SHELL $ac_aux_dir/configure"  # Please don't use this var.




#
# To configure for free source run ./configure --host=free_source
#
if test "X$host" != "Xfree_source" -a "X$host" != "Xwin32"; then
    # Make sure we can run config.sub.
$SHELL "$ac_aux_dir/config.sub" sun4 >/dev/null 2>&1 ||
  as_fn_error $? "cannot run $SHELL $ac_aux_dir/config.sub" "$LINENO" 5

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking build system type" >&5
$as_echo_n "checking build system type... " >&6; }
if ${ac_cv_build+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_build_alias=$build_alias
test "x$ac_build_alias" = x &&
  ac_build_alias=`$SHELL "$ac_aux_dir/config.guess"`
test "x$ac_build_alias" = x &&
  as_fn_error $? "cannot guess build type; you must specify one" "$LINENO" 5
ac_cv_build=`$SHELL "$ac_aux_dir/config.sub" $ac_build_alias` ||
  as_fn_error $? "$SHELL $ac_aux_dir/config.sub $ac_build_alias failed" "$LINENO" 5

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_build" >&5
$as_echo "$ac_cv_build" >&6; }
case $ac_cv_build in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical build" "$LINENO" 5;;
esac
build=$ac_cv_build
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_build
shift
build_cpu=$1
build_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
build_os=$*
IFS=$ac_save_IFS
case $build_os in *\ *) build_os=`echo "$build_os" | sed 's/ /-/g'`;; esac


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking host system type" >&5
$as_echo_n "checking host system type... " >&6; }
if ${ac_cv_host+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test "x$host_alias" = x; then
  ac_cv_host=$ac_cv_build
else
  ac_cv_host=`$SHELL "$ac_aux_dir/config.sub" $host_alias` ||
    as_fn_error $? "$SHELL $ac_aux_dir/config.sub $host_alias failed" "$LINENO" 5
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_host" >&5
$as_echo "$ac_cv_host" >&6; }
case $ac_cv_host in
*-*-*) ;;
*) as_fn_error $? "invalid value of canonical host" "$LINENO" 5;;
esac
host=$ac_cv_host
ac_save_IFS=$IFS; IFS='-'
set x $ac_cv_host
shift
host_cpu=$1
host_vendor=$2
shift; shift
# Remember, the first character of IFS is used to create $*,
# except with old shells:
host_os=$*
IFS=$ac_save_IFS
case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac


else
    host_os=$host
fi

if test "$cross_compiling" = "yes"; then
    CROSS_COMPILING=yes
else
    CROSS_COMPILING=no
fi



erl_xcomp_without_sysroot=no
if test "$cross_compiling" = "yes"; then
    test "$erl_xcomp_sysroot" != "" || erl_xcomp_without_sysroot=yes
    test "$erl_xcomp_isysroot" != "" || erl_xcomp_isysroot="$erl_xcomp_sysroot"
else
    erl_xcomp_sysroot=
    erl_xcomp_isysroot=
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
          if test -n "$ac_tool_prefix"; then
    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  fi
fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl.exe
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl.exe
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CC" && break
done

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
fi

fi


test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "no acceptable C compiler found in \$PATH
See \`config.log' for more details" "$LINENO" 5; }

# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
# Try to create an executable without -o first, disregard a.out.
# It will help us diagnose broken compilers, and finding out an intuition
# of exeext.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
$as_echo_n "checking whether the C compiler works... " >&6; }
ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`

# The possible output files:
ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"

ac_rmfiles=
for ac_file in $ac_files
do
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
    * ) ac_rmfiles="$ac_rmfiles $ac_file";;
  esac
done
rm -f $ac_rmfiles

if { { ac_try="$ac_link_default"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link_default") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then :
  # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
# in a Makefile.  We should not override ac_cv_exeext if it was cached,
# so that the user can short-circuit this test for compilers unknown to
# Autoconf.
for ac_file in $ac_files ''
do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
	;;
    [ab].out )
	# We found the default executable, but exeext='' is most
	# certainly right.
	break;;
    *.* )
	if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
	then :; else
	   ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	fi
	# We set ac_cv_exeext here because the later test for it is not
	# safe: cross compilers may not add the suffix if given an `-o'
	# argument, so we may need to know it at that point already.
	# Even if this section looks crufty: it has the advantage of
	# actually working.
	break;;
    * )
	break;;
  esac
done
test "$ac_cv_exeext" = no && ac_cv_exeext=

else
  ac_file=''
fi
if test -z "$ac_file"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
$as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "C compiler cannot create executables
See \`config.log' for more details" "$LINENO" 5; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
$as_echo_n "checking for C compiler default output file name... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
$as_echo "$ac_file" >&6; }
ac_exeext=$ac_cv_exeext

rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
ac_clean_files=$ac_clean_files_save
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
$as_echo_n "checking for suffix of executables... " >&6; }
if { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then :
  # If both `conftest.exe' and `conftest' are `present' (well, observable)
# catch `conftest.exe'.  For instance with Cygwin, `ls conftest' will
# work properly (i.e., refer to `conftest.exe'), while it won't with
# `rm'.
for ac_file in conftest.exe conftest conftest.*; do
  test -f "$ac_file" || continue
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
    *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
	  break;;
    * ) break;;
  esac
done
else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of executables: cannot compile and link
See \`config.log' for more details" "$LINENO" 5; }
fi
rm -f conftest conftest$ac_cv_exeext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
$as_echo "$ac_cv_exeext" >&6; }

rm -f conftest.$ac_ext
EXEEXT=$ac_cv_exeext
ac_exeext=$EXEEXT
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>
int
main ()
{
FILE *f = fopen ("conftest.out", "w");
 return ferror (f) || fclose (f) != 0;

  ;
  return 0;
}
_ACEOF
ac_clean_files="$ac_clean_files conftest.out"
# Check that the compiler produces executables we can run.  If not, either
# the compiler is broken, or we cross compile.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
$as_echo_n "checking whether we are cross compiling... " >&6; }
if test "$cross_compiling" != yes; then
  { { ac_try="$ac_link"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_link") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
  if { ac_try='./conftest$ac_cv_exeext'
  { { case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_try") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; }; then
    cross_compiling=no
  else
    if test "$cross_compiling" = maybe; then
	cross_compiling=yes
    else
	{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run C compiled programs.
If you meant to cross compile, use \`--host'.
See \`config.log' for more details" "$LINENO" 5; }
    fi
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
$as_echo "$cross_compiling" >&6; }

rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
ac_clean_files=$ac_clean_files_save
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
$as_echo_n "checking for suffix of object files... " >&6; }
if ${ac_cv_objext+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
rm -f conftest.o conftest.obj
if { { ac_try="$ac_compile"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compile") 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }; then :
  for ac_file in conftest.o conftest.obj conftest.*; do
  test -f "$ac_file" || continue;
  case $ac_file in
    *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
    *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
       break;;
  esac
done
else
  $as_echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5

{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot compute suffix of object files: cannot compile
See \`config.log' for more details" "$LINENO" 5; }
fi
rm -f conftest.$ac_cv_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
$as_echo "$ac_cv_objext" >&6; }
OBJEXT=$ac_cv_objext
ac_objext=$OBJEXT
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
if ${ac_cv_c_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
$as_echo "$ac_cv_c_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
  GCC=yes
else
  GCC=
fi
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
$as_echo_n "checking whether $CC accepts -g... " >&6; }
if ${ac_cv_prog_cc_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_c_werror_flag=$ac_c_werror_flag
   ac_c_werror_flag=yes
   ac_cv_prog_cc_g=no
   CFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
else
  CFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  ac_c_werror_flag=$ac_save_c_werror_flag
	 CFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_c_werror_flag=$ac_save_c_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
$as_echo "$ac_cv_prog_cc_g" >&6; }
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
if ${ac_cv_prog_cc_c89+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_prog_cc_c89=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdarg.h>
#include <stdio.h>
struct stat;
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
   inside strings and character constants.  */
#define FOO(x) 'x'
int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC

fi
# AC_CACHE_VAL
case "x$ac_cv_prog_cc_c89" in
  x)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
$as_echo "none needed" >&6; } ;;
  xno)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
$as_echo "unsupported" >&6; } ;;
  *)
    CC="$CC $ac_cv_prog_cc_c89"
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
esac
if test "x$ac_cv_prog_cc_c89" != xno; then :

fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing strerror" >&5
$as_echo_n "checking for library containing strerror... " >&6; }
if ${ac_cv_search_strerror+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char strerror ();
int
main ()
{
return strerror ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' cposix; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_strerror=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_strerror+:} false; then :
  break
fi
done
if ${ac_cv_search_strerror+:} false; then :

else
  ac_cv_search_strerror=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_strerror" >&5
$as_echo "$ac_cv_search_strerror" >&6; }
ac_res=$ac_cv_search_strerror
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

fi


ac_config_headers="$ac_config_headers $host/config.h:config.h.in include/internal/$host/ethread_header_config.h:include/internal/ethread_header_config.h.in include/$host/erl_int_sizes_config.h:include/erl_int_sizes_config.h.in"

ENABLE_ALLOC_TYPE_VARS=


# Check whether --enable-bootstrap-only was given.
if test "${enable_bootstrap_only+set}" = set; then :
  enableval=$enable_bootstrap_only;  if test "X$enableval" = "Xyes"; then
	# Disable stuff not necessary in a bootstrap only system in order
	# to speed up things by reducing the amount of stuff needing to be
	# built...
	with_termcap=no
	with_ssl=no
	with_ssl_zlib=no
        enable_jit=no
	enable_sctp=no
  fi

fi


# Check whether --enable-dirty-schedulers-test was given.
if test "${enable_dirty_schedulers_test+set}" = set; then :
  enableval=$enable_dirty_schedulers_test;  case "$enableval" in
    yes)  enable_dirty_schedulers_test=yes ;;
    *) enable_dirty_schedulers_test=no ;;
  esac
else
  enable_dirty_schedulers_test=no
fi


# Check whether --enable-smp-require-native-atomics was given.
if test "${enable_smp_require_native_atomics+set}" = set; then :
  enableval=$enable_smp_require_native_atomics;  case "$enableval" in
    no) smp_require_native_atomics=no ;;
    *)  smp_require_native_atomics=yes ;;
  esac
else
  smp_require_native_atomics=yes
fi



# Check whether --with-termcap was given.
if test "${with_termcap+set}" = set; then :
  withval=$with_termcap;
else
  with_termcap=yes
fi


# Check whether --enable-lock-checking was given.
if test "${enable_lock_checking+set}" = set; then :
  enableval=$enable_lock_checking;  case "$enableval" in
    no) enable_lock_check=no ;;
    *)  enable_lock_check=yes ;;
  esac

else
  enable_lock_check=no
fi


# Check whether --enable-lock-counter was given.
if test "${enable_lock_counter+set}" = set; then :
  enableval=$enable_lock_counter;  case "$enableval" in
    no) enable_lock_count=no ;;
    *)  enable_lock_count=yes ;;
  esac
else
  enable_lock_count=no
fi


# Check whether --enable-kernel-poll was given.
if test "${enable_kernel_poll+set}" = set; then :
  enableval=$enable_kernel_poll;  case "$enableval" in
    no) enable_kernel_poll=no ;;
    *)  enable_kernel_poll=yes ;;
  esac
else
  enable_kernel_poll=unknown
fi



# Check whether --enable-sctp was given.
if test "${enable_sctp+set}" = set; then :
  enableval=$enable_sctp;  case "x$enableval" in
      xno|xyes|xlib|x)
          ;;
      x*)
          as_fn_error $? "\"invalid value --enable-sctp=$enableval\"" "$LINENO" 5
          ;;
  esac
fi


# Check whether --enable-jit was given.
if test "${enable_jit+set}" = set; then :
  enableval=$enable_jit;  case "$enableval" in
    no) enable_jit=no ;;
    *)  enable_jit=yes ;;
  esac

else
  enable_jit=auto
fi


# Check whether --enable-m64-build was given.
if test "${enable_m64_build+set}" = set; then :
  enableval=$enable_m64_build;  case "$enableval" in
    no) enable_m64_build=no ;;
    *)  enable_m64_build=yes ;;
  esac

else
  enable_m64_build=no
fi


# Check whether --enable-m32-build was given.
if test "${enable_m32_build+set}" = set; then :
  enableval=$enable_m32_build;  case "$enableval" in
    no) enable_m32_build=no ;;
    *)	enable_m32_build=yes ;;
  esac

else
  enable_m32_build=no
fi



# Check whether --with-dynamic-trace was given.
if test "${with_dynamic_trace+set}" = set; then :
  withval=$with_dynamic_trace;
fi


if test X"$with_dynamic_trace" = X""; then
   with_dynamic_trace=no
fi

case "$with_dynamic_trace" in
     no) DYNAMIC_TRACE_FRAMEWORK=;;
     lttng)

$as_echo "#define USE_LTTNG 1" >>confdefs.h

            DYNAMIC_TRACE_FRAMEWORK=lttng;;
     dtrace)

$as_echo "#define USE_DTRACE 1" >>confdefs.h

     	     DYNAMIC_TRACE_FRAMEWORK=dtrace;;
     systemtap)

$as_echo "#define USE_SYSTEMTAP 1" >>confdefs.h

	    DYNAMIC_TRACE_FRAMEWORK=systemtap;;
     *)
     	    as_fn_error $? "Unknown dynamic tracing framework specified with --with-dynamic-trace!" "$LINENO" 5;;
esac

if test X"$DYNAMIC_TRACE_FRAMEWORK" != X""; then

$as_echo "#define USE_DYNAMIC_TRACE 1" >>confdefs.h

fi

# Check whether --enable-vm-probes was given.
if test "${enable_vm_probes+set}" = set; then :
  enableval=$enable_vm_probes;  case "$enableval" in
    	       	 no) use_vm_probes=no ;;
    		 *)
			if  test X"$DYNAMIC_TRACE_FRAMEWORK" != X""; then
		 	    use_vm_probes=yes ;
			else
			    as_fn_error $? "Can not enable VM probes without any dynamic tracing framework!" "$LINENO" 5;
			fi;;
  		 esac
else
  if  test X"$DYNAMIC_TRACE_FRAMEWORK" != X""; then
		 	    use_vm_probes=yes ;
			else
			    use_vm_probes=no
			fi
fi



if test X"$DYNAMIC_TRACE_FRAMEWORK" != X"lttng"; then
    if test X"$use_vm_probes" = X"yes"; then
        USE_VM_PROBES=yes

$as_echo "#define USE_VM_PROBES 1" >>confdefs.h

    fi
fi


# Check whether --with-assumed-cache-line-size was given.
if test "${with_assumed_cache_line_size+set}" = set; then :
  withval=$with_assumed_cache_line_size;
fi


case "$with_assumed_cache_line_size" in
     ""|no|yes)
	with_assumed_cache_line_size=64;;
     16|32|64|128|256|512|1024|2048|4096|8192)
	;;
     *)
	as_fn_error $? "Invalid assumed cache-line size of $with_assumed_cache_line_size bytes" "$LINENO" 5
	;;
esac


cat >>confdefs.h <<_ACEOF
#define ASSUMED_CACHE_LINE_SIZE $with_assumed_cache_line_size
_ACEOF


# Check whether --enable-systemd was given.
if test "${enable_systemd+set}" = set; then :
  enableval=$enable_systemd;
else
  enable_systemd=no
fi



# Check whether --with-microstate-accounting was given.
if test "${with_microstate_accounting+set}" = set; then :
  withval=$with_microstate_accounting;
else
  with_microstate_accounting=yes
fi


case "$with_microstate_accounting" in
    yes)
$as_echo "#define ERTS_ENABLE_MSACC 1" >>confdefs.h
 ;;
    extra)
$as_echo "#define ERTS_ENABLE_MSACC 2" >>confdefs.h
 ;;
    *) ;;
esac

OTP_RELEASE=
if test "${ERLANG_COMMERCIAL_BUILD}" != ""; then
	OTP_EXTRA_FLAGS=-DOTP_RELEASE
	OTP_RELEASE=yes
else
	OTP_EXTRA_FLAGS=
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking OTP release" >&5
$as_echo_n "checking OTP release... " >&6; }
SYSTEM_VSN=`cat $ERL_TOP/OTP_VERSION | sed "s|\([0-9]*\).*|\1|"`
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $SYSTEM_VSN" >&5
$as_echo "$SYSTEM_VSN" >&6; }


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking OTP version" >&5
$as_echo_n "checking OTP version... " >&6; }
OTP_VERSION=`cat $ERL_TOP/OTP_VERSION`
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTP_VERSION" >&5
$as_echo "$OTP_VERSION" >&6; }


if test X${enable_m64_build} = Xyes; then
	case $CFLAGS in
		*-m64*)
			;;
		*)
			CFLAGS="-m64 $CFLAGS"
			;;
	esac
else
	if test X${enable_m32_build} = Xyes;
	then
		case $CFLAGS in
		    *-m32*)
			    ;;
		    *)
			    CFLAGS="-m32 $CFLAGS"
			    ;;
		esac ;
	fi
fi

# Check whether --enable-static-nifs was given.
if test "${enable_static_nifs+set}" = set; then :
  enableval=$enable_static_nifs; STATIC_NIFS="$enableval"
else
  STATIC_NIFS=no
fi



# Check whether --enable-static-drivers was given.
if test "${enable_static_drivers+set}" = set; then :
  enableval=$enable_static_drivers; STATIC_DRIVERS="$enableval"
else
  STATIC_DRIVERS=no
fi




# Check whether --with-ets-write-concurrency-locks was given.
if test "${with_ets_write_concurrency_locks+set}" = set; then :
  withval=$with_ets_write_concurrency_locks;
fi


if test X"$with_ets_write_concurrency_locks" != X""; then

cat >>confdefs.h <<_ACEOF
#define ERTS_DB_HASH_LOCK_CNT $with_ets_write_concurrency_locks
_ACEOF

fi


# Check whether --with-spectre-mitigation was given.
if test "${with_spectre_mitigation+set}" = set; then :
  withval=$with_spectre_mitigation;
else
  with_spectre_mitigation=no
fi


case "$with_spectre_mitigation" in
    no) ;;
    yes) ;;
    incomplete) ;;
    *) as_fn_error $? "Invalid spectre mitigation setting" "$LINENO" 5 ;;
esac

i_noretpoline_attr=""

if test X"$with_spectre_mitigation" != X"no"; then
    CFLAGS="$CFLAGS -mindirect-branch=thunk"

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for spectre mitigation" >&5
$as_echo_n "checking for spectre mitigation... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  as_fn_error $? "no" "$LINENO" 5
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

    if test X"$with_spectre_mitigation" = X"incomplete"; then
        # gcc and clang support this attribute if they're recent enough. Note
        # that we must compile with -Werror to check for actual support as they
        # warn rather than error out on unsupported attributes.

        i_noretpoline_attr='__attribute__((__indirect_branch__("keep")))'
        i_preserve_cflags="$CFLAGS"
        CFLAGS="$CFLAGS -Werror"

        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether spectre mitigation can be disabled on a per-function basis" >&5
$as_echo_n "checking whether spectre mitigation can be disabled on a per-function basis... " >&6; }
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$i_noretpoline_attr
int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  as_fn_error $? "no" "$LINENO" 5
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

        CFLAGS="$i_preserve_cflags"
    fi
fi


cat >>confdefs.h <<_ACEOF
#define ERTS_NO_RETPOLINE $i_noretpoline_attr
_ACEOF



ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
set dummy ${ac_tool_prefix}gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_CC"; then
  ac_ct_CC=$CC
  # Extract the first word of "gcc", so it can be a program name with args.
set dummy gcc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="gcc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
else
  CC="$ac_cv_prog_CC"
fi

if test -z "$CC"; then
          if test -n "$ac_tool_prefix"; then
    # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
set dummy ${ac_tool_prefix}cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="${ac_tool_prefix}cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  fi
fi
if test -z "$CC"; then
  # Extract the first word of "cc", so it can be a program name with args.
set dummy cc; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
  ac_prog_rejected=no
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
       ac_prog_rejected=yes
       continue
     fi
    ac_cv_prog_CC="cc"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

if test $ac_prog_rejected = yes; then
  # We found a bogon in the path, so make sure we never use it.
  set dummy $ac_cv_prog_CC
  shift
  if test $# != 0; then
    # We chose a different compiler from the bogus one.
    # However, it has the same basename, so the bogon will be chosen
    # first if we set CC to just the basename; use the full file name.
    shift
    ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
  fi
fi
fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$CC"; then
  if test -n "$ac_tool_prefix"; then
  for ac_prog in cl.exe
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CC"; then
  ac_cv_prog_CC="$CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CC=$ac_cv_prog_CC
if test -n "$CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
$as_echo "$CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CC" && break
  done
fi
if test -z "$CC"; then
  ac_ct_CC=$CC
  for ac_prog in cl.exe
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CC"; then
  ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CC=$ac_cv_prog_ac_ct_CC
if test -n "$ac_ct_CC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
$as_echo "$ac_ct_CC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CC" && break
done

  if test "x$ac_ct_CC" = x; then
    CC=""
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CC=$ac_ct_CC
  fi
fi

fi


test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "no acceptable C compiler found in \$PATH
See \`config.log' for more details" "$LINENO" 5; }

# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
if ${ac_cv_c_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_c_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
$as_echo "$ac_cv_c_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
  GCC=yes
else
  GCC=
fi
ac_test_CFLAGS=${CFLAGS+set}
ac_save_CFLAGS=$CFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
$as_echo_n "checking whether $CC accepts -g... " >&6; }
if ${ac_cv_prog_cc_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_c_werror_flag=$ac_c_werror_flag
   ac_c_werror_flag=yes
   ac_cv_prog_cc_g=no
   CFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
else
  CFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

else
  ac_c_werror_flag=$ac_save_c_werror_flag
	 CFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_c_werror_flag=$ac_save_c_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
$as_echo "$ac_cv_prog_cc_g" >&6; }
if test "$ac_test_CFLAGS" = set; then
  CFLAGS=$ac_save_CFLAGS
elif test $ac_cv_prog_cc_g = yes; then
  if test "$GCC" = yes; then
    CFLAGS="-g -O2"
  else
    CFLAGS="-g"
  fi
else
  if test "$GCC" = yes; then
    CFLAGS="-O2"
  else
    CFLAGS=
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
if ${ac_cv_prog_cc_c89+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_prog_cc_c89=no
ac_save_CC=$CC
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdarg.h>
#include <stdio.h>
struct stat;
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}

/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default.  It has
   function prototypes and stuff, but not '\xHH' hex character constants.
   These don't provoke an error unfortunately, instead are silently treated
   as 'x'.  The following induces an error, until -std is added to get
   proper ANSI mode.  Curiously '\x00'!='x' always comes out true, for an
   array size at least.  It's necessary to write '\x00'==0 to get something
   that's true only with -std.  */
int osf4_cc_array ['\x00' == 0 ? 1 : -1];

/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
   inside strings and character constants.  */
#define FOO(x) 'x'
int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];

int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
int
main ()
{
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
  ;
  return 0;
}
_ACEOF
for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
	-Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_cc_c89=$ac_arg
fi
rm -f core conftest.err conftest.$ac_objext
  test "x$ac_cv_prog_cc_c89" != "xno" && break
done
rm -f conftest.$ac_ext
CC=$ac_save_CC

fi
# AC_CACHE_VAL
case "x$ac_cv_prog_cc_c89" in
  x)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
$as_echo "none needed" >&6; } ;;
  xno)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
$as_echo "unsupported" >&6; } ;;
  *)
    CC="$CC $ac_cv_prog_cc_c89"
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
esac
if test "x$ac_cv_prog_cc_c89" != xno; then :

fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu




case $host_os in
    linux*) CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE";;
    aix*|os400*)
        # * _ALL_SOURCE: Required to get the winsize structure for TIOCSWINSZ.
        # * _LINUX_SOURCE_COMPAT: Not required, but makes some libc functions
        # behave closer to glibc assumptions.
        CPPFLAGS="$CPPFLAGS -D_ALL_SOURCE -D_LINUX_SOURCE_COMPAT"
        ;;
    win32)
	# The ethread library requires _WIN32_WINNT of at least 0x0403.
	# -D_WIN32_WINNT=* from CPPFLAGS is saved in ETHR_DEFS.
	CPPFLAGS="$CPPFLAGS -D_WIN32_WINNT=0x0600 -DWINVER=0x0600"
	;;
    *)
	;;
esac




if test "X$windows_environment_" != "Xchecked"; then
windows_environment_=checked
MIXED_CYGWIN=no
MIXED_MSYS=no
MIXED_VSL=no

MIXED_VC=no
MIXED_MINGW=no

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for mixed mingw-gcc and native VC++ environment" >&5
$as_echo_n "checking for mixed mingw-gcc and native VC++ environment... " >&6; }
if test "X$host" = "Xwin32" -a "x$GCC" != "xyes"; then
	if test -x /usr/bin/msys-?.0.dll; then
	        CFLAGS="$CFLAGS -O2"
		MIXED_MSYS=yes
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: MSYS and VC" >&5
$as_echo "MSYS and VC" >&6; }
		MIXED_VC=yes
		CPPFLAGS="$CPPFLAGS -DERTS_MIXED_VC"
	elif test -x /usr/bin/cygpath; then
		CFLAGS="$CFLAGS -O2"
		MIXED_CYGWIN=yes
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: Cygwin and VC" >&5
$as_echo "Cygwin and VC" >&6; }
		MIXED_VC=yes
		CPPFLAGS="$CPPFLAGS -DERTS_MIXED_VC"
        elif test -x /bin/wslpath; then
		CFLAGS="$CFLAGS -O2"
		MIXED_WSL=yes
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: WSL and VC" >&5
$as_echo "WSL and VC" >&6; }
		MIXED_VC=yes
		CPPFLAGS="$CPPFLAGS -DERTS_MIXED_VC"
	else
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: undeterminable" >&5
$as_echo "undeterminable" >&6; }
		as_fn_error cannot handle this! "Seems to be mixed windows but not within any known env" "$LINENO" 5
	fi
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi



if test "x$MIXED_MSYS" != "xyes"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mixed cygwin and native MinGW environment" >&5
$as_echo_n "checking for mixed cygwin and native MinGW environment... " >&6; }
   if test "X$host" = "Xwin32" -a "x$GCC" = x"yes"; then
	if test -x /usr/bin/cygpath; then
		CFLAGS="$CFLAGS -O2"
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
		MIXED_MINGW=yes
		CPPFLAGS="$CPPFLAGS -DERTS_MIXED_MINGW"
	else
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: undeterminable" >&5
$as_echo "undeterminable" >&6; }
		as_fn_error cannot handle this! "Seems to be mixed windows but not with cygwin" "$LINENO" 5
	fi
    else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi
else
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mixed MSYS and native MinGW environment" >&5
$as_echo_n "checking for mixed MSYS and native MinGW environment... " >&6; }
   if test "x$GCC" = x"yes"; then
    	if test -x /usr/bin/msys-=.0.dll; then
		CFLAGS="$CFLAGS -O2"
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
		MIXED_MINGW=yes
		CPPFLAGS="$CPPFLAGS -DERTS_MIXED_MINGW"
	else
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: undeterminable" >&5
$as_echo "undeterminable" >&6; }
		as_fn_error cannot handle this! "Seems to be mixed windows but not with msys" "$LINENO" 5
	fi
    else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we mix cygwin with any native compiler" >&5
$as_echo_n "checking if we mix cygwin with any native compiler... " >&6; }
if test "X$MIXED_CYGWIN" = "Xyes"; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we mix msys with another native compiler" >&5
$as_echo_n "checking if we mix msys with another native compiler... " >&6; }
if test "X$MIXED_MSYS" = "Xyes" ; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we mix WSL with another native compiler" >&5
$as_echo_n "checking if we mix WSL with another native compiler... " >&6; }
if test "X$MIXED_WSL" = "Xyes" ; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

fi



ERTS_CONFIG_H_IDIR="-I${ERL_TOP}/erts/$host"


extra_flags="$ERTS_CONFIG_H_IDIR $OTP_EXTRA_FLAGS"
CFLAGS="$CFLAGS $extra_flags"
DEBUG_CFLAGS="-g $CPPFLAGS $extra_flags $DEBUG_CFLAGS"
DEBUG_FLAGS=-g


case $CFLAGS in
	*-m64*)
		case $DEBUG_CFLAGS in
			*-m64*)
				;;
			*)
				DEBUG_CFLAGS="-m64 $DEBUG_CFLAGS"
				;;
		esac
		;;
	*-m32*)
		case $DEBUG_CFLAGS in
			*-m32*)
				;;
			*)
				DEBUG_CFLAGS="-m32 $DEBUG_CFLAGS"
				;;
		esac
		;;
	*)
		;;
esac

lfs_conf=ok
lfs_source=none
if test "${LFS_CFLAGS+set}" = "set" || \
   test "${LFS_LDFLAGS+set}" = "set" || \
   test "${LFS_LIBS+set}" = "set"; then
    lfs_source=user
else

if test "$cross_compiling" != "yes"; then
    # Extract the first word of "getconf", so it can be a program name with args.
set dummy getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$GETCONF"; then
  ac_cv_prog_GETCONF="$GETCONF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_GETCONF="getconf"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_prog_GETCONF" && ac_cv_prog_GETCONF="false"
fi
fi
GETCONF=$ac_cv_prog_GETCONF
if test -n "$GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GETCONF" >&5
$as_echo "$GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


else
        host_getconf="$host_alias-getconf"
    # Extract the first word of "$host_getconf", so it can be a program name with args.
set dummy $host_getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$GETCONF"; then
  ac_cv_prog_GETCONF="$GETCONF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_GETCONF="$host_getconf"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_prog_GETCONF" && ac_cv_prog_GETCONF="false"
fi
fi
GETCONF=$ac_cv_prog_GETCONF
if test -n "$GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GETCONF" >&5
$as_echo "$GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    if test "$GETCONF" = "false" && test "$erl_xcomp_sysroot" != ""; then
			    				GETCONF=
	prfx="$erl_xcomp_sysroot"
        if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}getconf", so it can be a program name with args.
set dummy ${ac_tool_prefix}getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $GETCONF in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_GETCONF="$GETCONF" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy=""$prfx/usr/bin:$prfx/bin:$prfx/usr/local/bin""
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_GETCONF="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
GETCONF=$ac_cv_path_GETCONF
if test -n "$GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GETCONF" >&5
$as_echo "$GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_path_GETCONF"; then
  ac_pt_GETCONF=$GETCONF
  # Extract the first word of "getconf", so it can be a program name with args.
set dummy getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_ac_pt_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $ac_pt_GETCONF in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_ac_pt_GETCONF="$ac_pt_GETCONF" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy=""$prfx/usr/bin:$prfx/bin:$prfx/usr/local/bin""
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_ac_pt_GETCONF="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
ac_pt_GETCONF=$ac_cv_path_ac_pt_GETCONF
if test -n "$ac_pt_GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_GETCONF" >&5
$as_echo "$ac_pt_GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_pt_GETCONF" = x; then
    GETCONF="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    GETCONF=$ac_pt_GETCONF
  fi
else
  GETCONF="$ac_cv_path_GETCONF"
fi

    fi
fi

   test "$GETCONF" = "false" || lfs_source=getconf
fi

if test "$lfs_source" = "none"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Do not know how to check for large file support flags; no getconf is available" >&5
$as_echo "$as_me: WARNING: Do not know how to check for large file support flags; no getconf is available" >&2;}
else
    for var in CFLAGS LDFLAGS LIBS; do
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for large file support $var" >&5
$as_echo_n "checking for large file support $var... " >&6; }
	if test $lfs_source = user; then
	    eval "lfs_val=\"\$LFS_$var\""
	else
	    eval "lfs_var=LFS_$var"
	    lfs_val=`$GETCONF $lfs_var 2>/dev/null` || lfs_conf=failed
	    if test $lfs_conf = failed; then
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
$as_echo "failed" >&6; }
		break
	    fi
	    eval "$lfs_var=\"$lfs_val\""
	fi
	test "$lfs_val" != "" || lfs_val=none
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lfs_val" >&5
$as_echo "$lfs_val" >&6; }
    done
    if test $lfs_conf = failed; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Check for large file support flags failed; $GETCONF failed" >&5
$as_echo "$as_me: WARNING: Check for large file support flags failed; $GETCONF failed" >&2;}
    else
	CFLAGS="$CFLAGS $LFS_CFLAGS"
	DEBUG_CFLAGS="$DEBUG_CFLAGS $LFS_CFLAGS"
	LDFLAGS="$LDFLAGS $LFS_LDFLAGS"
	LIBS="$LIBS $LFS_LIBS"
    fi
fi

if test "x$GCC" = xyes; then
  # Treat certain GCC warnings as errors

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can add -Werror=return-type to WERRORFLAGS (via CFLAGS)" >&5
$as_echo_n "checking if we can add -Werror=return-type to WERRORFLAGS (via CFLAGS)... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-Werror=return-type $WERRORFLAGS";
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  can_enable_flag=true
else
  can_enable_flag=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        WERRORFLAGS="-Werror=return-type $WERRORFLAGS"
    else
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi


    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can add -Werror=implicit to WERRORFLAGS (via CFLAGS)" >&5
$as_echo_n "checking if we can add -Werror=implicit to WERRORFLAGS (via CFLAGS)... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-Werror=implicit $WERRORFLAGS";
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  can_enable_flag=true
else
  can_enable_flag=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        WERRORFLAGS="-Werror=implicit $WERRORFLAGS"
    else
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi


    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can add -Werror=undef to WERRORFLAGS (via CFLAGS)" >&5
$as_echo_n "checking if we can add -Werror=undef to WERRORFLAGS (via CFLAGS)... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-Werror=undef $WERRORFLAGS";
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  can_enable_flag=true
else
  can_enable_flag=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        WERRORFLAGS="-Werror=undef $WERRORFLAGS"
    else
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi


  # until the emulator can handle this, I suggest we turn it off!
  #WFLAGS="-Wall -Wshadow -Wcast-qual -Wmissing-declarations"
  WFLAGS="-Wall -Wstrict-prototypes -Wpointer-arith"

  case "$host_cpu" in
    tile*)
      # tile-gcc is a bit stricter with -Wmissing-prototypes than other gccs,
      # and too strict for our taste.
      ;;
    *)
      WFLAGS="$WFLAGS -Wmissing-prototypes";;
  esac

  saved_CFLAGS=$CFLAGS
  CFLAGS="$CFLAGS -Wdeclaration-after-statement"
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  warn_decl_after_st=true
else
  warn_decl_after_st=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
  if test "X$warn_decl_after_st" = "Xtrue"; then
    WFLAGS="$WFLAGS -Wdeclaration-after-statement"
  fi
  CFLAGS=$saved_CFLAGS

  # Use -fno-common for gcc, that is link error if multiple definitions of
  # global variables are encountered. This is ISO C compliant.
  # Until version 10, gcc has had -fcommon as default, which allows and merges
  # such dubious duplicates.

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can add -fno-common to CFLAGS (via CFLAGS)" >&5
$as_echo_n "checking if we can add -fno-common to CFLAGS (via CFLAGS)... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-fno-common $CFLAGS";
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  can_enable_flag=true
else
  can_enable_flag=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        CFLAGS="-fno-common $CFLAGS"
    else
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi

else
  WFLAGS=""
  WERRORFLAGS=${WERRORFLAGS:-""}
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking C99 support" >&5
$as_echo_n "checking C99 support... " >&6; }

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

#if __STDC_VERSION__ < 199901L
  #error "Not C99"
#endif
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
     CFLAGS="-std=gnu99 $CFLAGS"
     DEBUG_CFLAGS="-std=gnu99 $DEBUG_CFLAGS"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking CFLAGS for -O switch" >&5
$as_echo_n "checking CFLAGS for -O switch... " >&6; }
case "$CFLAGS" in
     *-O*) { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; } ;;
     *)
       as_fn_error $? "
  CFLAGS must contain a -O flag. If you need to edit the CFLAGS you probably
  also want to add the default CFLAGS. The default CFLAGS are \"-O2 -g\".
  If you want to build erts without any optimization, pass -O0 to CFLAGS." "$LINENO" 5 ;;
esac






## Check if we can do profile guided optimization of beam_emu

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -fprofile-generate -Werror..." >&5
$as_echo_n "checking whether $CC accepts -fprofile-generate -Werror...... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-fprofile-generate -Werror $CFLAGS";
    if test "$cross_compiling" = yes; then :
  can_enable_flag=false
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  return 0;
else
  can_enable_flag=true
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        PROFILE_GENERATE=true
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    else
        PROFILE_GENERATE=false
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi


    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -fprofile-use -Werror..." >&5
$as_echo_n "checking whether $CC accepts -fprofile-use -Werror...... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-fprofile-use -Werror $CFLAGS";
    if test "$cross_compiling" = yes; then :
  can_enable_flag=false
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  return 0;
else
  can_enable_flag=true
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        PROFILE_USE=true
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    else
        PROFILE_USE=false
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi


    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -fprofile-use -fprofile-correction -Werror..." >&5
$as_echo_n "checking whether $CC accepts -fprofile-use -fprofile-correction -Werror...... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-fprofile-use -fprofile-correction -Werror $CFLAGS";
    if test "$cross_compiling" = yes; then :
  can_enable_flag=false
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  return 0;
else
  can_enable_flag=true
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        PROFILE_CORRECTION=true
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    else
        PROFILE_CORRECTION=false
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi


if test "X$PROFILE_CORRECTION" = "Xtrue"; then
   saved_CFLAGS=$CFLAGS
   saved_LDFLAGS=$LDFLAGS
   CFLAGS="-fprofile-generate $saved_CFLAGS"
   LDFLAGS="-fprofile-generate $saved_LDFLAGS"
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC links with -fprofile-generate" >&5
$as_echo_n "checking whether $CC links with -fprofile-generate... " >&6; }
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
         PROFILE_GENERATE=true
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
         PROFILE_GENERATE=false
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
   CFLAGS=$saved_CFLAGS
   LDFLAGS=$saved_LDFLAGS
fi

## Check if this is clang

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -fprofile-instr-generate -Werror..." >&5
$as_echo_n "checking whether $CC accepts -fprofile-instr-generate -Werror...... " >&6; }
    saved_CFLAGS=$CFLAGS;
    CFLAGS="-fprofile-instr-generate -Werror $CFLAGS";
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  can_enable_flag=true
else
  can_enable_flag=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    CFLAGS=$saved_CFLAGS;
    if test "X$can_enable_flag" = "Xtrue"; then
        PROFILE_INSTR_GENERATE=true
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    else
        PROFILE_INSTR_GENERATE=false
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    fi

if test "X$PROFILE_INSTR_GENERATE" = "Xtrue"; then
   # It was clang, now we also have to check if we have llvm-profdata and that
   # we can link programs with -fprofile-instr-use
   saved_CFLAGS=$CFLAGS;
   CFLAGS="-fprofile-instr-generate -Werror $saved_CFLAGS"
   if test "$cross_compiling" = yes; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: Disabling PGO when cross-compiling" >&5
$as_echo "$as_me: Disabling PGO when cross-compiling" >&6;}
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  # Extract the first word of "llvm-profdata", so it can be a program name with args.
set dummy llvm-profdata; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_LLVM_PROFDATA+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $LLVM_PROFDATA in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_LLVM_PROFDATA="$LLVM_PROFDATA" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy="$PATH:/Library/Developer/CommandLineTools/usr/bin"
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_LLVM_PROFDATA="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
LLVM_PROFDATA=$ac_cv_path_LLVM_PROFDATA
if test -n "$LLVM_PROFDATA"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LLVM_PROFDATA" >&5
$as_echo "$LLVM_PROFDATA" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


      for ac_prog in xcrun
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_XCRUN+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$XCRUN"; then
  ac_cv_prog_XCRUN="$XCRUN" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_XCRUN="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
XCRUN=$ac_cv_prog_XCRUN
if test -n "$XCRUN"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XCRUN" >&5
$as_echo "$XCRUN" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$XCRUN" && break
done

      if test "X$XCRUN" != "X" -a "X$LLVM_PROFDATA" = "X"; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $XCRUN $LLVM_PROFDATA" >&5
$as_echo_n "checking for $XCRUN $LLVM_PROFDATA... " >&6; }
        if $XCRUN $LLVM_PROFDATA --help 2>& 5 >& 5; then
          LLVM_PROFDATA="$XCRUN $LLVM_PROFDATA"
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        else
          { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
        fi
      fi

      if test "X$LLVM_PROFDATA" != "X"; then
        CFLAGS="-fprofile-instr-use=default.profdata $saved_CFLAGS";
        $LLVM_PROFDATA merge -output=default.profdata *.profraw;
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -fprofile-instr-use=default.profdata -Werror" >&5
$as_echo_n "checking whether $CC accepts -fprofile-instr-use=default.profdata -Werror... " >&6; }
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
           PROFILE_INSTR_USE=true
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
           PROFILE_INSTR_USE=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
        rm -f default.profdata
      fi
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

   rm -f *.profraw
   CFLAGS=$saved_CFLAGS;
fi

# Check whether --enable-pgo was given.
if test "${enable_pgo+set}" = set; then :
  enableval=$enable_pgo;  case "$enableval" in
    no) enable_pgo=no ;;
    *)	enable_pgo=yes ;;
  esac

else
  enable_pgo=default
fi


USE_PGO=false
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to do PGO of erts" >&5
$as_echo_n "checking whether to do PGO of erts... " >&6; }
if test $enable_pgo = no; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, disabled by user" >&5
$as_echo "no, disabled by user" >&6; }
elif test $CROSS_COMPILING = yes; then
  if test $enable_pgo = yes; then
    as_fn_error $? "cannot use PGO when cross-compiling" "$LINENO" 5
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, cross compiling" >&5
$as_echo "no, cross compiling" >&6; }
  fi
elif test "X$host" = "Xwin32"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, not supported in windows" >&5
$as_echo "no, not supported in windows" >&6; }
elif test "X$PROFILE_GENERATE" = "Xtrue" -a "X$PROFILE_USE" = "Xtrue" -a "X$PROFILE_CORRECTION" = "Xtrue"; then
  ## We need -fprofile-generate and -fprofile-correction support to use PGO with
  ## gcc as multiple threads run within the executed object files
  USE_PGO=true
  PROFILE_COMPILER=gcc
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, using -fprofile-generate -fprofile-correction" >&5
$as_echo "yes, using -fprofile-generate -fprofile-correction" >&6; }
elif test "X$PROFILE_INSTR_GENERATE" = "Xtrue" -a "X$PROFILE_INSTR_USE" = "Xtrue"; then
  USE_PGO=true
  PROFILE_COMPILER=clang
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, using -fprofile-instr-generate" >&5
$as_echo "yes, using -fprofile-instr-generate" >&6; }
else
  if test $enable_pgo = yes; then
    as_fn_error $? "cannot use PGO with this compiler" "$LINENO" 5
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
  fi
fi

USE_PGO=false




ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
$as_echo_n "checking how to run the C preprocessor... " >&6; }
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if ${ac_cv_prog_CPP+:} false; then :
  $as_echo_n "(cached) " >&6
else
      # Double quotes because CPP needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :
  break
fi

    done
    ac_cv_prog_CPP=$CPP

fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
$as_echo "$CPP" >&6; }
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :

else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
if ${ac_cv_path_GREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -z "$GREP"; then
  ac_path_GREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in grep ggrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_GREP" || continue
# Check for GNU ac_path_GREP and select it if it is found.
  # Check for GNU $ac_path_GREP
case `"$ac_path_GREP" --version 2>&1` in
*GNU*)
  ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'GREP' >> "conftest.nl"
    "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_GREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_GREP="$ac_path_GREP"
      ac_path_GREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_GREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_GREP"; then
    as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_GREP=$GREP
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
$as_echo "$ac_cv_path_GREP" >&6; }
 GREP="$ac_cv_path_GREP"


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
$as_echo_n "checking for egrep... " >&6; }
if ${ac_cv_path_EGREP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
   then ac_cv_path_EGREP="$GREP -E"
   else
     if test -z "$EGREP"; then
  ac_path_EGREP_found=false
  # Loop through the user's path and test for each of PROGNAME-LIST
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_prog in egrep; do
    for ac_exec_ext in '' $ac_executable_extensions; do
      ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
      as_fn_executable_p "$ac_path_EGREP" || continue
# Check for GNU ac_path_EGREP and select it if it is found.
  # Check for GNU $ac_path_EGREP
case `"$ac_path_EGREP" --version 2>&1` in
*GNU*)
  ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
*)
  ac_count=0
  $as_echo_n 0123456789 >"conftest.in"
  while :
  do
    cat "conftest.in" "conftest.in" >"conftest.tmp"
    mv "conftest.tmp" "conftest.in"
    cp "conftest.in" "conftest.nl"
    $as_echo 'EGREP' >> "conftest.nl"
    "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
    diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
    as_fn_arith $ac_count + 1 && ac_count=$as_val
    if test $ac_count -gt ${ac_path_EGREP_max-0}; then
      # Best one so far, save it but keep looking for a better one
      ac_cv_path_EGREP="$ac_path_EGREP"
      ac_path_EGREP_max=$ac_count
    fi
    # 10*(2^10) chars as input seems more than enough
    test $ac_count -gt 10 && break
  done
  rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
esac

      $ac_path_EGREP_found && break 3
    done
  done
  done
IFS=$as_save_IFS
  if test -z "$ac_cv_path_EGREP"; then
    as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
  fi
else
  ac_cv_path_EGREP=$EGREP
fi

   fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
$as_echo "$ac_cv_path_EGREP" >&6; }
 EGREP="$ac_cv_path_EGREP"


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_header_stdc=yes
else
  ac_cv_header_stdc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <string.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then :
  :
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ctype.h>
#include <stdlib.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      return 2;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :

else
  ac_cv_header_stdc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
$as_echo "$ac_cv_header_stdc" >&6; }
if test $ac_cv_header_stdc = yes; then

$as_echo "#define STDC_HEADERS 1" >>confdefs.h

fi

# On IRIX 5.3, sys/types and inttypes.h are conflicting.
for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
		  inttypes.h stdint.h unistd.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
$as_echo_n "checking size of void *... " >&6; }
if ${ac_cv_sizeof_void_p+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_void_p" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (void *)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_void_p=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
$as_echo "$ac_cv_sizeof_void_p" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_VOID_P $ac_cv_sizeof_void_p
_ACEOF

 # Needed for ARCH and smp checks below
if test "x$ac_cv_sizeof_void_p" = x8; then
  EXTERNAL_WORD_SIZE=64

else
  EXTERNAL_WORD_SIZE=32

fi


if test "x$host_alias" != "x"; then
    chk_opsys_=$host_os
else
    chk_opsys_=`uname -s`
    if test "x$chk_opsys_" = "xSunOS"; then
	chk_opsys_=$chk_opsys_`uname -r`
    fi
fi
case $chk_opsys_ in
    win32)			OPSYS=win32;;
    solaris2.*|SunOS5.*)	OPSYS=sol2;;
    linux*|Linux)		OPSYS=linux;;
    darwin|Darwin)		OPSYS=darwin;;
    freebsd|FreeBSD)		OPSYS=freebsd;;
    *)				OPSYS=noopsys
esac




    { $as_echo "$as_me:${as_lineno-$LINENO}: checking target hardware architecture" >&5
$as_echo_n "checking target hardware architecture... " >&6; }
    if test "x$host_alias" != "x" -a "x$host_cpu" != "x"; then
        chk_arch_=$host_cpu
    else
        chk_arch_=`uname -m`
    fi

    case $chk_arch_ in
    sun4u)	ARCH=ultrasparc;;
    sparc64)	ARCH=sparc64;;
    sun4v)	ARCH=ultrasparc;;
    i86pc)	ARCH=x86;;
    i386)	ARCH=x86;;
    i486)	ARCH=x86;;
    i586)	ARCH=x86;;
    i686)	ARCH=x86;;
    x86_64)	ARCH=amd64;;
    amd64)	ARCH=amd64;;
    macppc)	ARCH=ppc;;
    powerpc)	ARCH=ppc;;
    ppc)	ARCH=ppc;;
    ppc64)	ARCH=ppc64;;
    ppc64le)	ARCH=ppc64le;;
    powerpc64)	ARCH=ppc64;;
    powerpc64le) ARCH=ppc64le;;
    "Power Macintosh")	ARCH=ppc;;
    arm64)	ARCH=arm64;;
    armv5b)	ARCH=arm;;
    armv5teb)	ARCH=arm;;
    armv5tel)	ARCH=arm;;
    armv5tejl)	ARCH=arm;;
    armv6l)	ARCH=arm;;
    armv6hl)	ARCH=arm;;
    armv7l)	ARCH=arm;;
    armv7hl)	ARCH=arm;;
    armv8*)	ARCH=arm;;
    aarch64)	ARCH=arm64;;
    aarch*)	ARCH=arm;;
    tile)	ARCH=tile;;
    e2k)        ARCH=e2k;;
    *)	 	ARCH=noarch;;
    esac
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ARCH" >&5
$as_echo "$ARCH" >&6; }

                    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether compilation mode forces ARCH adjustment" >&5
$as_echo_n "checking whether compilation mode forces ARCH adjustment... " >&6; }
    case "$ARCH-$ac_cv_sizeof_void_p" in
    x86-8)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=x86 to ARCH=amd64" >&5
$as_echo "yes: adjusting ARCH=x86 to ARCH=amd64" >&6; }
	ARCH=amd64
	;;
    amd64-4)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=amd64 to ARCH=x86" >&5
$as_echo "yes: adjusting ARCH=amd64 to ARCH=x86" >&6; }
	ARCH=x86
	;;
    ultrasparc-8)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=ultrasparc to ARCH=sparc64" >&5
$as_echo "yes: adjusting ARCH=ultrasparc to ARCH=sparc64" >&6; }
	ARCH=sparc64
	;;
    sparc64-4)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=sparc64 to ARCH=ultrasparc" >&5
$as_echo "yes: adjusting ARCH=sparc64 to ARCH=ultrasparc" >&6; }
	ARCH=ultrasparc
	;;
    ppc64-4)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=ppc64 to ARCH=ppc" >&5
$as_echo "yes: adjusting ARCH=ppc64 to ARCH=ppc" >&6; }
	ARCH=ppc
	;;
    ppc-8)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=ppc to ARCH=ppc64" >&5
$as_echo "yes: adjusting ARCH=ppc to ARCH=ppc64" >&6; }
	ARCH=ppc64
	;;
    arm-8)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes: adjusting ARCH=arm to ARCH=arm64" >&5
$as_echo "yes: adjusting ARCH=arm to ARCH=arm64" >&6; }
	ARCH=arm64
	;;
    *)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no: ARCH is $ARCH" >&5
$as_echo "no: ARCH is $ARCH" >&6; }
	;;
    esac







case $ARCH-$OPSYS in
	amd64-darwin*|arm64-darwin*)
		{ $as_echo "$as_me:${as_lineno-$LINENO}: Adjusting LDFLAGS to cope with 64bit Darwin" >&5
$as_echo "$as_me: Adjusting LDFLAGS to cope with 64bit Darwin" >&6;}
		case $LDFLAGS in
			*-m64*)
				;;
			*)
				LDFLAGS="-m64 $LDFLAGS"
			;;
		esac
		;;
	*-darwin*)
		case $LDFLAGS in
			*-m32*)
				;;
			*)
				LDFLAGS="-m32 $LDFLAGS"
				;;
		esac
		;;
	*)
		if test X${enable_m64_build} = Xyes; then
			{ $as_echo "$as_me:${as_lineno-$LINENO}: Adjusting LDFLAGS to use -m64" >&5
$as_echo "$as_me: Adjusting LDFLAGS to use -m64" >&6;}
			case $LDFLAGS in
				*-m64*)
					;;
				*)
					LDFLAGS="-m64 $LDFLAGS"
				;;
			esac
		fi;
		if test X${enable_m32_build} = Xyes; then
			{ $as_echo "$as_me:${as_lineno-$LINENO}: Adjusting LDFLAGS to use -m32" >&5
$as_echo "$as_me: Adjusting LDFLAGS to use -m32" >&6;} ;
			case $LDFLAGS in
				*-m32*)
					;;
				*)
					LDFLAGS="-m32 $LDFLAGS"
				;;
			esac ;
		fi
		;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if VM has to be linked with Carbon framework" >&5
$as_echo_n "checking if VM has to be linked with Carbon framework... " >&6; }
case $ARCH-$OPSYS in
	*-darwin*)
  		LIBCARBON="-framework Carbon -framework Cocoa"
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
		;;
	*)
		LIBCARBON=
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
		;;
esac



_search_path=/bin:/usr/bin:/usr/local/bin:$PATH

# Extract the first word of "mkdir", so it can be a program name with args.
set dummy mkdir; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_MKDIR+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $MKDIR in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_MKDIR="$MKDIR" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $_search_path
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_MKDIR="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_path_MKDIR" && ac_cv_path_MKDIR="false"
  ;;
esac
fi
MKDIR=$ac_cv_path_MKDIR
if test -n "$MKDIR"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR" >&5
$as_echo "$MKDIR" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


if test "$ac_cv_path_MKDIR" = false; then
  as_fn_error $? "No 'mkdir' command found" "$LINENO" 5
fi

# Extract the first word of "cp", so it can be a program name with args.
set dummy cp; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_CP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $CP in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_CP="$CP" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $_search_path
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_CP="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_path_CP" && ac_cv_path_CP="false"
  ;;
esac
fi
CP=$ac_cv_path_CP
if test -n "$CP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CP" >&5
$as_echo "$CP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


if test "$ac_cv_path_CP" = false; then
  as_fn_error $? "No 'cp' command found" "$LINENO" 5
fi

_search_path=


# Remove old configuration information.
# Next line should be before first output to CONN_INFO. So this is
# just the right place.
rm -f "$ERL_TOP/erts/CONF_INFO"

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we are building a sharing-preserving emulator" >&5
$as_echo_n "checking if we are building a sharing-preserving emulator... " >&6; }
if test "$enable_sharing_preserving" = "yes"; then

$as_echo "#define SHCOPY 1" >>confdefs.h

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
$as_echo_n "checking how to run the C preprocessor... " >&6; }
# On Suns, sometimes $CPP names a directory.
if test -n "$CPP" && test -d "$CPP"; then
  CPP=
fi
if test -z "$CPP"; then
  if ${ac_cv_prog_CPP+:} false; then :
  $as_echo_n "(cached) " >&6
else
      # Double quotes because CPP needs to be expanded
    for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
    do
      ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :
  break
fi

    done
    ac_cv_prog_CPP=$CPP

fi
  CPP=$ac_cv_prog_CPP
else
  ac_cv_prog_CPP=$CPP
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
$as_echo "$CPP" >&6; }
ac_preproc_ok=false
for ac_c_preproc_warn_flag in '' yes
do
  # Use a header file that comes with gcc, so configuring glibc
  # with a fresh cross-compiler works.
  # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
  # <limits.h> exists even on freestanding compilers.
  # On the NeXT, cc -E runs the code through the compiler's parser,
  # not just through cpp. "Syntax error" is here to catch this case.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifdef __STDC__
# include <limits.h>
#else
# include <assert.h>
#endif
		     Syntax error
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :

else
  # Broken: fails on valid input.
continue
fi
rm -f conftest.err conftest.i conftest.$ac_ext

  # OK, works on sane cases.  Now check whether nonexistent headers
  # can be detected and how.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ac_nonexistent.h>
_ACEOF
if ac_fn_c_try_cpp "$LINENO"; then :
  # Broken: success on invalid input.
continue
else
  # Passes both tests.
ac_preproc_ok=:
break
fi
rm -f conftest.err conftest.i conftest.$ac_ext

done
# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
rm -f conftest.i conftest.err conftest.$ac_ext
if $ac_preproc_ok; then :

else
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
See \`config.log' for more details" "$LINENO" 5; }
fi

ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu


if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
set dummy ${ac_tool_prefix}ranlib; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_RANLIB+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$RANLIB"; then
  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
RANLIB=$ac_cv_prog_RANLIB
if test -n "$RANLIB"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
$as_echo "$RANLIB" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_RANLIB"; then
  ac_ct_RANLIB=$RANLIB
  # Extract the first word of "ranlib", so it can be a program name with args.
set dummy ranlib; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_RANLIB"; then
  ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_RANLIB="ranlib"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
if test -n "$ac_ct_RANLIB"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
$as_echo "$ac_ct_RANLIB" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_RANLIB" = x; then
    RANLIB=":"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    RANLIB=$ac_ct_RANLIB
  fi
else
  RANLIB="$ac_cv_prog_RANLIB"
fi


for ac_prog in 'bison -y' byacc
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_YACC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$YACC"; then
  ac_cv_prog_YACC="$YACC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_YACC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
YACC=$ac_cv_prog_YACC
if test -n "$YACC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $YACC" >&5
$as_echo "$YACC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$YACC" && break
done
test -n "$YACC" || YACC="yacc"

for ac_prog in perl5 perl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_PERL+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $PERL in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_PERL="$PERL" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy="/usr/local/bin:/opt/local/bin:/usr/local/gnu/bin:${PATH}"
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_PERL="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
PERL=$ac_cv_path_PERL
if test -n "$PERL"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5
$as_echo "$PERL" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$PERL" && break
done
test -n "$PERL" || PERL="false"

if test "$PERL" = "false"; then
  ac_cv_path_PERL=false
  PERL=false
fi

if test "$ac_cv_path_PERL" = false; then
  as_fn_error $? "Perl version 5 is required to build the emulator!" "$LINENO" 5
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
$as_echo_n "checking whether ln -s works... " >&6; }
LN_S=$as_ln_s
if test "$LN_S" = "ln -s"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
$as_echo "no, using $LN_S" >&6; }
fi



if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
set dummy ${ac_tool_prefix}ar; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_AR+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$AR"; then
  ac_cv_prog_AR="$AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_AR="${ac_tool_prefix}ar"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
AR=$ac_cv_prog_AR
if test -n "$AR"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
$as_echo "$AR" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_AR"; then
  ac_ct_AR=$AR
  # Extract the first word of "ar", so it can be a program name with args.
set dummy ar; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_AR+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_AR"; then
  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_AR="ar"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_AR=$ac_cv_prog_ac_ct_AR
if test -n "$ac_ct_AR"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
$as_echo "$ac_ct_AR" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_AR" = x; then
    AR="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    AR=$ac_ct_AR
  fi
else
  AR="$ac_cv_prog_AR"
fi

if test "$ac_cv_prog_AR" = false; then
  as_fn_error $? "No 'ar' command found in PATH" "$LINENO" 5
fi

#
# Get programs needed for building the documentation
#

## Delete previous failed configure results
if test -f doc/CONF_INFO; then
   rm -f doc/CONF_INFO
fi

for ac_prog in xsltproc
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_XSLTPROC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$XSLTPROC"; then
  ac_cv_prog_XSLTPROC="$XSLTPROC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_XSLTPROC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
XSLTPROC=$ac_cv_prog_XSLTPROC
if test -n "$XSLTPROC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XSLTPROC" >&5
$as_echo "$XSLTPROC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$XSLTPROC" && break
done

if test -z "$XSLTPROC"; then
  echo "xsltproc" >> doc/CONF_INFO
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No 'xsltproc' command found: the documentation cannot be built" >&5
$as_echo "$as_me: WARNING: No 'xsltproc' command found: the documentation cannot be built" >&2;}
fi

for ac_prog in fop
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_FOP+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$FOP"; then
  ac_cv_prog_FOP="$FOP" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_FOP="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
FOP=$ac_cv_prog_FOP
if test -n "$FOP"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $FOP" >&5
$as_echo "$FOP" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$FOP" && break
done

if test -z "$FOP"; then
  FOP="$ERL_TOP/make/fakefop"
  echo "fop" >> doc/CONF_INFO
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No 'fop' command found: going to generate placeholder PDF files" >&5
$as_echo "$as_me: WARNING: No 'fop' command found: going to generate placeholder PDF files" >&2;}
fi

for ac_prog in xmllint
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_XMLLINT+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$XMLLINT"; then
  ac_cv_prog_XMLLINT="$XMLLINT" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_XMLLINT="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
XMLLINT=$ac_cv_prog_XMLLINT
if test -n "$XMLLINT"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $XMLLINT" >&5
$as_echo "$XMLLINT" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$XMLLINT" && break
done

if test -z "$XMLLINT"; then
  echo "xmllint" >> doc/CONF_INFO
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: No 'xmllint' command found: can't run the xmllint target for the documentation" >&5
$as_echo "$as_me: WARNING: No 'xmllint' command found: can't run the xmllint target for the documentation" >&2;}
fi

case $host in
  *-*-solaris*|free_source)
    if test -x /usr/ucb/install; then
      INSTALL="/usr/ucb/install -c"
    fi
    ;;
  *)
    ;;
esac
# Find a good install program.  We prefer a C program (faster),
# so one script is as good as another.  But avoid the broken or
# incompatible versions:
# SysV /etc/install, /usr/sbin/install
# SunOS /usr/etc/install
# IRIX /sbin/install
# AIX /bin/install
# AmigaOS /C/install, which installs bootblocks on floppy discs
# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
# AFS /usr/afsws/bin/install, which mishandles nonexistent args
# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
# OS/2's system install, which has a completely different semantic
# ./install, which can be erroneously created by make from ./install.sh.
# Reject install programs that cannot install multiple files.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
$as_echo_n "checking for a BSD-compatible install... " >&6; }
if test -z "$INSTALL"; then
if ${ac_cv_path_install+:} false; then :
  $as_echo_n "(cached) " >&6
else
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    # Account for people who put trailing slashes in PATH elements.
case $as_dir/ in #((
  ./ | .// | /[cC]/* | \
  /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
  ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
  /usr/ucb/* ) ;;
  *)
    # OSF1 and SCO ODT 3.0 have their own names for install.
    # Don't use installbsd from OSF since it installs stuff as root
    # by default.
    for ac_prog in ginstall scoinst install; do
      for ac_exec_ext in '' $ac_executable_extensions; do
	if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
	  if test $ac_prog = install &&
	    grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # AIX install.  It has an incompatible calling convention.
	    :
	  elif test $ac_prog = install &&
	    grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
	    # program-specific install script used by HP pwplus--don't use.
	    :
	  else
	    rm -rf conftest.one conftest.two conftest.dir
	    echo one > conftest.one
	    echo two > conftest.two
	    mkdir conftest.dir
	    if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
	      test -s conftest.one && test -s conftest.two &&
	      test -s conftest.dir/conftest.one &&
	      test -s conftest.dir/conftest.two
	    then
	      ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
	      break 3
	    fi
	  fi
	fi
      done
    done
    ;;
esac

  done
IFS=$as_save_IFS

rm -rf conftest.one conftest.two conftest.dir

fi
  if test "${ac_cv_path_install+set}" = set; then
    INSTALL=$ac_cv_path_install
  else
    # As a last resort, use the slow shell script.  Don't cache a
    # value for INSTALL within a source directory, because that will
    # break other packages using the cache if that directory is
    # removed, or if the value is a relative name.
    INSTALL=$ac_install_sh
  fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
$as_echo "$INSTALL" >&6; }

# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
# It thinks the first close brace ends the variable substitution.
test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'

test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'

test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to create a directory including parents" >&5
$as_echo_n "checking how to create a directory including parents... " >&6; }
if ${ac_cv_prog_mkdir_p+:} false; then :
  $as_echo_n "(cached) " >&6
else

temp_name_base=config.$$
temp_name=$temp_name_base/x/y/z
$INSTALL -d $temp_name >/dev/null 2>&1
ac_cv_prog_mkdir_p=none
if test -d $temp_name; then
        ac_cv_prog_mkdir_p="$INSTALL -d"
else
        mkdir -p $temp_name >/dev/null 2>&1
        if test -d $temp_name; then
                ac_cv_prog_mkdir_p="mkdir -p"
        fi
fi
rm -fr $temp_name_base

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_mkdir_p" >&5
$as_echo "$ac_cv_prog_mkdir_p" >&6; }

case "${ac_cv_prog_mkdir_p}" in
  none) as_fn_error $? "don't know how create directories with parents" "$LINENO" 5 ;;
  *)    INSTALL_DIR="$ac_cv_prog_mkdir_p"      ;;
esac


case $host_os in
	darwin*)
								INSTALL_DATA="$INSTALL_DATA -p";;
	*)
		;;
esac


case $build in
	*tile*)
		INSTALL_PROGRAM="$INSTALL_PROGRAM -m755"
		INSTALL_SCRIPT="$INSTALL_SCRIPT -m755"
		;;
	*)
		;;
esac


HCC='$(CC)'
HCFLAGS=""
HCFLAGS="$HCFLAGS -I${ERL_TOP}/erts/$host"

LD='$(CC)'
LD_MAY_BE_WEAK=no





case $host in
   win32)
      ERLANG_OSTYPE=win32 ;;
   *)
      ERLANG_OSTYPE=unix ;;
esac



# Check how to export functions from the emulator executable, needed
# when dynamically loaded drivers are loaded (so that they can find
# emulator functions).
# OS'es with ELF executables using the GNU linker (Linux and recent *BSD,
# in rare cases Solaris) typically need '-Wl,-export-dynamic' (i.e. pass
# -export-dynamic to the linker - also known as -rdynamic and some other
# variants); some sysVr4 system(s) instead need(s) '-Wl,-Bexport'.
# AIX 4.x (perhaps only for x>=2) wants -Wl,-bexpall,-brtl and doesn't
# reliably return an error for others, thus we separate it out.
# Otherwise we assume that if the linker accepts the flag, it is needed.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for extra flags needed to export symbols" >&5
$as_echo_n "checking for extra flags needed to export symbols... " >&6; }
DEXPORT=""
case $host_os in
	aix*|os400*)
		DEXPORT=-Wl,-bexpall,-brtl
	;;
	bsdi*)
    		DEXPORT="-rdynamic "
    	;;
	win32)
    		DEXPORT=""
    	;;
	*)
		save_ldflags="$LDFLAGS"
		LDFLAGS=-Wl,-export-dynamic
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  DEXPORT=-Wl,-export-dynamic
else

			LDFLAGS=-Wl,-Bexport
			cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  DEXPORT=-Wl,-Bexport
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
		LDFLAGS="$save_ldflags"
	;;
esac

case "x$DEXPORT" in
	"x")
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
$as_echo "none" >&6; };;
	*)
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $DEXPORT" >&5
$as_echo "$DEXPORT" >&6; };;
esac

# Check for Solaris/ultrasparc /dev/perfmon interface
# (also needs gcc specific asm instructions)
case "${host}:${GCC}" in
  sparc-*-solaris*:yes)

$as_echo "#define HAVE_SOLARIS_SPARC_PERFMON 1" >>confdefs.h

    ;;
  *)
    ;;
esac


case $host_os in
        darwin19*)
	    # Disable stack checking to avoid crashing with a segment fault
	    # in macOS Catalina.
	    { $as_echo "$as_me:${as_lineno-$LINENO}: Turning off stack check on macOS 10.15 (Catalina)" >&5
$as_echo "$as_me: Turning off stack check on macOS 10.15 (Catalina)" >&6;}
	    CFLAGS="-fno-stack-check $CFLAGS"
	    ;;
        *)
	    ;;
esac



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sin in -lm" >&5
$as_echo_n "checking for sin in -lm... " >&6; }
if ${ac_cv_lib_m_sin+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lm  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char sin ();
int
main ()
{
return sin ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_m_sin=yes
else
  ac_cv_lib_m_sin=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_m_sin" >&5
$as_echo "$ac_cv_lib_m_sin" >&6; }
if test "x$ac_cv_lib_m_sin" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBM 1
_ACEOF

  LIBS="-lm $LIBS"

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
$as_echo_n "checking for dlopen in -ldl... " >&6; }
if ${ac_cv_lib_dl_dlopen+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlopen ();
int
main ()
{
return dlopen ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dl_dlopen=yes
else
  ac_cv_lib_dl_dlopen=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBDL 1
_ACEOF

  LIBS="-ldl $LIBS"

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -linet" >&5
$as_echo_n "checking for main in -linet... " >&6; }
if ${ac_cv_lib_inet_main+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-linet  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


int
main ()
{
return main ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_inet_main=yes
else
  ac_cv_lib_inet_main=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_inet_main" >&5
$as_echo "$ac_cv_lib_inet_main" >&6; }
if test "x$ac_cv_lib_inet_main" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBINET 1
_ACEOF

  LIBS="-linet $LIBS"

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for openpty in -lutil" >&5
$as_echo_n "checking for openpty in -lutil... " >&6; }
if ${ac_cv_lib_util_openpty+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lutil  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char openpty ();
int
main ()
{
return openpty ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_util_openpty=yes
else
  ac_cv_lib_util_openpty=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_util_openpty" >&5
$as_echo "$ac_cv_lib_util_openpty" >&6; }
if test "x$ac_cv_lib_util_openpty" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBUTIL 1
_ACEOF

  LIBS="-lutil $LIBS"

fi




# Check whether --enable-native-ethr-impls was given.
if test "${enable_native_ethr_impls+set}" = set; then :
  enableval=$enable_native_ethr_impls;  case "$enableval" in
    no) disable_native_ethr_impls=yes ;;
    *)  disable_native_ethr_impls=no ;;
  esac
else
  disable_native_ethr_impls=no
fi


test "X$disable_native_ethr_impls" = "Xyes" &&

$as_echo "#define ETHR_DISABLE_NATIVE_IMPLS 1" >>confdefs.h


# Check whether --enable-x86-out-of-order was given.
if test "${enable_x86_out_of_order+set}" = set; then :
  enableval=$enable_x86_out_of_order;
fi


# Check whether --enable-prefer-gcc-native-ethr-impls was given.
if test "${enable_prefer_gcc_native_ethr_impls+set}" = set; then :
  enableval=$enable_prefer_gcc_native_ethr_impls;  case "$enableval" in
    yes) enable_prefer_gcc_native_ethr_impls=yes ;;
    *)  enable_prefer_gcc_native_ethr_impls=no ;;
  esac
else
  enable_prefer_gcc_native_ethr_impls=no
fi


test $enable_prefer_gcc_native_ethr_impls = yes &&

$as_echo "#define ETHR_PREFER_GCC_NATIVE_IMPLS 1" >>confdefs.h


# Check whether --enable-trust-gcc-atomic-builtins-memory-barriers was given.
if test "${enable_trust_gcc_atomic_builtins_memory_barriers+set}" = set; then :
  enableval=$enable_trust_gcc_atomic_builtins_memory_barriers;  case "$enableval" in
    yes) trust_gcc_atomic_builtins_mbs=1 ;;
    *) trust_gcc_atomic_builtins_mbs=0 ;;
  esac
else
  trust_gcc_atomic_builtins_mbs=0
fi



cat >>confdefs.h <<_ACEOF
#define ETHR_TRUST_GCC_ATOMIC_BUILTINS_MEMORY_BARRIERS $trust_gcc_atomic_builtins_mbs
_ACEOF



# Check whether --with-libatomic_ops was given.
if test "${with_libatomic_ops+set}" = set; then :
  withval=$with_libatomic_ops;
fi



# Check whether --with-with_sparc_memory_order was given.
if test "${with_with_sparc_memory_order+set}" = set; then :
  withval=$with_with_sparc_memory_order;
fi


# Check whether --enable-ppc-lwsync-instruction was given.
if test "${enable_ppc_lwsync_instruction+set}" = set; then :
  enableval=$enable_ppc_lwsync_instruction;  case "$enableval" in
    no) enable_lwsync=no ;;
    *)  enable_lwsync=yes ;;
  esac
else

  # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
$as_echo_n "checking size of void *... " >&6; }
if ${ac_cv_sizeof_void_p+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_void_p" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (void *)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_void_p=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
$as_echo "$ac_cv_sizeof_void_p" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_VOID_P $ac_cv_sizeof_void_p
_ACEOF


  case $host_cpu-$ac_cv_sizeof_void_p in
       macppc-8|powerpc-8|ppc-8|powerpc64-8|ppc64-8|powerpc64le-8|ppc64le-8|"Power Macintosh"-8)
           enable_lwsync=yes;;
       *)
           enable_lwsync=undefined;;
  esac
fi


case $enable_lwsync in
     no)

$as_echo "#define ETHR_PPC_HAVE_NO_LWSYNC 1" >>confdefs.h

       ;;
     yes)

$as_echo "#define ETHR_PPC_HAVE_LWSYNC 1" >>confdefs.h

       ;;
     *)
       ;;
esac



NEED_NPTL_PTHREAD_H=no

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for native win32 threads" >&5
$as_echo_n "checking for native win32 threads... " >&6; }
if test "X$host_os" = "Xwin32"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
    THR_DEFS="-DWIN32_THREADS"
    THR_LIBS=
    THR_LIB_NAME=win32_threads
    THR_LIB_TYPE=win32_threads
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    THR_DEFS=
    THR_LIBS=
    THR_LIB_NAME=
    THR_LIB_TYPE=posix_unknown


    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lpthread" >&5
$as_echo_n "checking for pthread_create in -lpthread... " >&6; }
if ${ac_cv_lib_pthread_pthread_create+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lpthread  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char pthread_create ();
int
main ()
{
return pthread_create ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_pthread_pthread_create=yes
else
  ac_cv_lib_pthread_pthread_create=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_pthread_pthread_create" >&5
$as_echo "$ac_cv_lib_pthread_pthread_create" >&6; }
if test "x$ac_cv_lib_pthread_pthread_create" = xyes; then :
  THR_LIBS="-lpthread"
fi


    if test "x$THR_LIBS" = "x"; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_create in -lc_r" >&5
$as_echo_n "checking for pthread_create in -lc_r... " >&6; }
if ${ac_cv_lib_c_r_pthread_create+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lc_r  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char pthread_create ();
int
main ()
{
return pthread_create ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_c_r_pthread_create=yes
else
  ac_cv_lib_c_r_pthread_create=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_r_pthread_create" >&5
$as_echo "$ac_cv_lib_c_r_pthread_create" >&6; }
if test "x$ac_cv_lib_c_r_pthread_create" = xyes; then :
  THR_LIBS="-lc_r"
fi

    fi

    if test "x$THR_LIBS" = "x"; then
	ac_fn_c_check_func "$LINENO" "pthread_create" "ac_cv_func_pthread_create"
if test "x$ac_cv_func_pthread_create" = xyes; then :
  THR_LIBS="none_needed"
fi

    fi

    if test "x$THR_LIBS" = "x"; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the '-pthread' switch can be used" >&5
$as_echo_n "checking if the '-pthread' switch can be used... " >&6; }
	saved_cflags=$CFLAGS
	CFLAGS="$CFLAGS -pthread"
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <pthread.h>
int
main ()
{
pthread_create((void*)0,(void*)0,(void*)0,(void*)0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  THR_DEFS="-pthread"
		     THR_LIBS="-pthread"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	CFLAGS=$saved_cflags
	if test "x$THR_LIBS" != "x"; then
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	else
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	fi
    fi

    if test "x$THR_LIBS" != "x"; then
	THR_DEFS="$THR_DEFS -D_THREAD_SAFE -D_REENTRANT -DPOSIX_THREADS"
	THR_LIB_NAME=pthread
	if test "x$THR_LIBS" = "xnone_needed"; then
	    THR_LIBS=
	fi
	case $host_os in
	    solaris*)
		THR_DEFS="$THR_DEFS -D_POSIX_PTHREAD_SEMANTICS" ;;
	    linux*)
		THR_DEFS="$THR_DEFS -D_POSIX_THREAD_SAFE_FUNCTIONS"


if test "$cross_compiling" != "yes"; then
    # Extract the first word of "getconf", so it can be a program name with args.
set dummy getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$GETCONF"; then
  ac_cv_prog_GETCONF="$GETCONF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_GETCONF="getconf"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_prog_GETCONF" && ac_cv_prog_GETCONF="false"
fi
fi
GETCONF=$ac_cv_prog_GETCONF
if test -n "$GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GETCONF" >&5
$as_echo "$GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


else
        host_getconf="$host_alias-getconf"
    # Extract the first word of "$host_getconf", so it can be a program name with args.
set dummy $host_getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$GETCONF"; then
  ac_cv_prog_GETCONF="$GETCONF" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_GETCONF="$host_getconf"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  test -z "$ac_cv_prog_GETCONF" && ac_cv_prog_GETCONF="false"
fi
fi
GETCONF=$ac_cv_prog_GETCONF
if test -n "$GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GETCONF" >&5
$as_echo "$GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    if test "$GETCONF" = "false" && test "$erl_xcomp_sysroot" != ""; then
			    				GETCONF=
	prfx="$erl_xcomp_sysroot"
        if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}getconf", so it can be a program name with args.
set dummy ${ac_tool_prefix}getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $GETCONF in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_GETCONF="$GETCONF" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy=""$prfx/usr/bin:$prfx/bin:$prfx/usr/local/bin""
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_GETCONF="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
GETCONF=$ac_cv_path_GETCONF
if test -n "$GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GETCONF" >&5
$as_echo "$GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_path_GETCONF"; then
  ac_pt_GETCONF=$GETCONF
  # Extract the first word of "getconf", so it can be a program name with args.
set dummy getconf; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_path_ac_pt_GETCONF+:} false; then :
  $as_echo_n "(cached) " >&6
else
  case $ac_pt_GETCONF in
  [\\/]* | ?:[\\/]*)
  ac_cv_path_ac_pt_GETCONF="$ac_pt_GETCONF" # Let the user override the test with a path.
  ;;
  *)
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
as_dummy=""$prfx/usr/bin:$prfx/bin:$prfx/usr/local/bin""
for as_dir in $as_dummy
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_path_ac_pt_GETCONF="$as_dir/$ac_word$ac_exec_ext"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

  ;;
esac
fi
ac_pt_GETCONF=$ac_cv_path_ac_pt_GETCONF
if test -n "$ac_pt_GETCONF"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_GETCONF" >&5
$as_echo "$ac_pt_GETCONF" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_pt_GETCONF" = x; then
    GETCONF="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    GETCONF=$ac_pt_GETCONF
  fi
else
  GETCONF="$ac_cv_path_GETCONF"
fi

    fi
fi

		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Native POSIX Thread Library" >&5
$as_echo_n "checking for Native POSIX Thread Library... " >&6; }
		libpthr_vsn=`$GETCONF GNU_LIBPTHREAD_VERSION 2>/dev/null`
		if test $? -eq 0; then
		    case "$libpthr_vsn" in
			*nptl*|*NPTL*) nptl=yes;;
			*) nptl=no;;
		    esac
		elif test "$cross_compiling" = "yes"; then
		    case "$erl_xcomp_linux_nptl" in
			"") nptl=cross;;
			yes|no) nptl=$erl_xcomp_linux_nptl;;
			*) as_fn_error $? "Bad erl_xcomp_linux_nptl value: $erl_xcomp_linux_nptl" "$LINENO" 5;;
		    esac
		else
		    nptl=no
		fi
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $nptl" >&5
$as_echo "$nptl" >&6; }
		if test $nptl = cross; then
		    nptl=yes
		    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result yes guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result yes guessed because of cross compilation" >&2;}
		fi
		if test $nptl = yes; then
		    THR_LIB_TYPE=posix_nptl
		    need_nptl_incldir=no
		    ac_fn_c_check_header_mongrel "$LINENO" "nptl/pthread.h" "ac_cv_header_nptl_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_nptl_pthread_h" = xyes; then :
  need_nptl_incldir=yes
				     NEED_NPTL_PTHREAD_H=yes
fi


		    if test $need_nptl_incldir = yes; then
			# Ahh...
			nptl_path="$C_INCLUDE_PATH:$CPATH"
			if test X$cross_compiling != Xyes; then
			    nptl_path="$nptl_path:/usr/local/include:/usr/include"
			else
			    IROOT="$erl_xcomp_isysroot"
			    test "$IROOT" != "" || IROOT="$erl_xcomp_sysroot"
			    test "$IROOT" != "" || as_fn_error $? "Don't know where to search for includes! Please set erl_xcomp_isysroot" "$LINENO" 5
			    nptl_path="$nptl_path:$IROOT/usr/local/include:$IROOT/usr/include"
			fi
			nptl_ws_path=
			save_ifs="$IFS"; IFS=":"
			for dir in $nptl_path; do
			    if test "x$dir" != "x"; then
				nptl_ws_path="$nptl_ws_path $dir"
			    fi
			done
			IFS=$save_ifs
			nptl_incldir=
			for dir in $nptl_ws_path; do
		            as_ac_Header=`$as_echo "ac_cv_header_$dir/nptl/pthread.h" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$dir/nptl/pthread.h" "$as_ac_Header" "$ac_includes_default"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  nptl_incldir=$dir/nptl
fi


			    if test "x$nptl_incldir" != "x"; then
				THR_DEFS="$THR_DEFS -isystem $nptl_incldir"
				break
			    fi
			done
			if test "x$nptl_incldir" = "x"; then
			    as_fn_error $? "Failed to locate nptl system include directory" "$LINENO" 5
			fi
		    fi
		fi
		;;
	    *) ;;
	esac

			saved_cppflags=$CPPFLAGS
	CPPFLAGS="$CPPFLAGS $THR_DEFS"


	ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_pthread_h" = xyes; then :

$as_echo "#define HAVE_PTHREAD_H 1" >>confdefs.h

fi



		ac_fn_c_check_header_mongrel "$LINENO" "pthread/mit/pthread.h" "ac_cv_header_pthread_mit_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_pthread_mit_pthread_h" = xyes; then :
  \

$as_echo "#define HAVE_MIT_PTHREAD_H 1" >>confdefs.h

fi



		CPPFLAGS=$saved_cppflags

    fi
fi




ERTS_INTERNAL_X_LIBS=

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for kstat_open in -lkstat" >&5
$as_echo_n "checking for kstat_open in -lkstat... " >&6; }
if ${ac_cv_lib_kstat_kstat_open+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lkstat  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char kstat_open ();
int
main ()
{
return kstat_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_kstat_kstat_open=yes
else
  ac_cv_lib_kstat_kstat_open=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_kstat_kstat_open" >&5
$as_echo "$ac_cv_lib_kstat_kstat_open" >&6; }
if test "x$ac_cv_lib_kstat_kstat_open" = xyes; then :

$as_echo "#define HAVE_KSTAT 1" >>confdefs.h

ERTS_INTERNAL_X_LIBS="$ERTS_INTERNAL_X_LIBS -lkstat"
fi







  # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
  # and Monterey, since it may step backwards.
  if test "no" = "yes"; then
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW";;
          *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE";;
     esac
  else
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW";;
                *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_UPTIME_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_PRECISE";;
     esac
  fi

  case "try_find_pthread_compatible" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME_RAW CLOCK_MONOTONIC"
	;;
    *)
	check_msg="custom "
	prefer_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME_RAW CLOCK_MONOTONIC"
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)" >&5
$as_echo_n "checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)... " >&6; }
if ${erl_cv_clock_gettime_monotonic_raw+:} false; then :
  $as_echo_n "(cached) " >&6
else

       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_raw=yes
else
  erl_cv_clock_gettime_monotonic_raw=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_raw" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_raw" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}monotonic clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}monotonic clock type... " >&6; }
if ${erl_cv_clock_gettime_monotonic_try_find_pthread_compatible+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_try_find_pthread_compatible=$clock_type
else
  erl_cv_clock_gettime_monotonic_try_find_pthread_compatible=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_monotonic_try_find_pthread_compatible = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_try_find_pthread_compatible" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_try_find_pthread_compatible" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
    for ac_func in clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  else
    for ac_func in clock_getres clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  fi


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with monotonic clock type" >&5
$as_echo_n "checking for mach clock_get_time() with monotonic clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_monotonic+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_monotonic=yes
else
  erl_cv_mach_clock_get_time_monotonic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_monotonic" >&5
$as_echo "$erl_cv_mach_clock_get_time_monotonic" >&6; }

  erl_corrected_monotonic_clock=no
  case $erl_cv_clock_gettime_monotonic_try_find_pthread_compatible-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
    *-*-*-win32)
      erl_monotonic_clock_func=WindowsAPI
      ;;
    CLOCK_*-*-*-linux*)
      case $erl_cv_clock_gettime_monotonic_try_find_pthread_compatible-$erl_cv_clock_gettime_monotonic_raw in
        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
	  erl_corrected_monotonic_clock=yes
	  ;;
	*)
	  # We don't trust CLOCK_MONOTONIC to be NTP
	  # adjusted on linux systems that do not have
	  # CLOCK_MONOTONIC_RAW (although it seems to
	  # be...)
	  ;;
      esac
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-no-no-linux*)
      erl_monotonic_clock_func=times
      ;;
    CLOCK_*-*-*-*)
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-yes-*-*)
      erl_monotonic_clock_func=gethrtime
      ;;
    no-no-yes-*)
      erl_monotonic_clock_func=mach_clock_get_time
      ;;
    no-no-no-*)
      erl_monotonic_clock_func=none
      ;;
  esac

  erl_monotonic_clock_low_resolution=no
  erl_monotonic_clock_lib=
  erl_monotonic_clock_id=
  case $erl_monotonic_clock_func in
    clock_gettime)
      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_try_find_pthread_compatible
      for low_res_id in $low_resolution_clock_gettime_monotonic; do
      	  if test $erl_monotonic_clock_id = $low_res_id; then
	    erl_monotonic_clock_low_resolution=yes
	    break
	  fi
      done
      erl_monotonic_clock_lib=$clock_gettime_lib
      ;;
    mach_clock_get_time)
      erl_monotonic_clock_id=SYSTEM_CLOCK
      ;;
    times)
      erl_monotonic_clock_low_resolution=yes
      ;;
    *)
      ;;
  esac



case $erl_monotonic_clock_func in
  clock_gettime)

$as_echo "#define ETHR_HAVE_CLOCK_GETTIME_MONOTONIC 1" >>confdefs.h

    ;;
  mach_clock_get_time)

$as_echo "#define ETHR_HAVE_MACH_CLOCK_GET_TIME 1" >>confdefs.h

    ;;
  gethrtime)

$as_echo "#define ETHR_HAVE_GETHRTIME 1" >>confdefs.h

    ;;
  *)
    ;;
esac

if test "x$erl_monotonic_clock_id" != "x"; then

cat >>confdefs.h <<_ACEOF
#define ETHR_MONOTONIC_CLOCK_ID $erl_monotonic_clock_id
_ACEOF

fi

ethr_native_atomic_implementation=none
ethr_have_native_atomics=no
ethr_have_native_spinlock=no
ETHR_THR_LIB_BASE="$THR_LIB_NAME"
ETHR_THR_LIB_BASE_TYPE="$THR_LIB_TYPE"
ETHR_DEFS="$THR_DEFS"
ETHR_X_LIBS="$THR_LIBS $ERTS_INTERNAL_X_LIBS $erl_monotonic_clock_lib"
ETHR_LIBS=
ETHR_LIB_NAME=

ethr_modified_default_stack_size=


# Check whether --with-threadnames was given.
if test "${with_threadnames+set}" = set; then :
  withval=$with_threadnames;
else
  with_threadnames=yes
fi


ethr_lib_name=ethread

case "$THR_LIB_NAME" in

    win32_threads)
	ETHR_THR_LIB_BASE_DIR=win
	# * _WIN32_WINNT >= 0x0400 is needed for
	#   TryEnterCriticalSection
	# * _WIN32_WINNT >= 0x0403 is needed for
	#   InitializeCriticalSectionAndSpinCount
	# The ethread lib will refuse to build if _WIN32_WINNT < 0x0403.
	#
	# -D_WIN32_WINNT should have been defined in $CPPFLAGS; fetch it
	# and save it in ETHR_DEFS.
	found_win32_winnt=no
	for cppflag in $CPPFLAGS; do
	    case $cppflag in
		-DWINVER*)
		    ETHR_DEFS="$ETHR_DEFS $cppflag"
		    ;;
		-D_WIN32_WINNT*)
		    ETHR_DEFS="$ETHR_DEFS $cppflag"
		    found_win32_winnt=yes
		    ;;
		*)
		    ;;
	    esac
        done
        if test $found_win32_winnt = no; then
	    as_fn_error $? "-D_WIN32_WINNT missing in CPPFLAGS" "$LINENO" 5
        fi


$as_echo "#define ETHR_WIN32_THREADS 1" >>confdefs.h


	if test "X$disable_native_ethr_impls" = "Xyes"; then
	    have_interlocked_op=no
	    ethr_have_native_atomics=no
	else

    ilckd="_InterlockedDecrement"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDDECREMENT 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedDecrement_rel"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDDECREMENT_REL 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedIncrement"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDINCREMENT 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedIncrement_acq"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDINCREMENT_ACQ 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedExchangeAdd"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDEXCHANGEADD 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedExchangeAdd_acq"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDEXCHANGEADD_ACQ 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedAnd"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDAND 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedOr"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDOR 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedExchange"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDEXCHANGE 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedCompareExchange"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "3" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	    test "$have_interlocked_op" = "yes" && ethr_have_native_atomics=yes

    ilckd="_InterlockedCompareExchange_acq"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "3" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE_ACQ 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	    test "$have_interlocked_op" = "yes" && ethr_have_native_atomics=yes

    ilckd="_InterlockedCompareExchange_rel"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "3" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (long) 0);";;
	"3") ilckd_call="${ilckd}(var, (long) 0, (long) 0);";;
	"4") ilckd_call="${ilckd}(var, (long) 0, (long) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile long *var;
	    volatile long arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE_REL 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	    test "$have_interlocked_op" = "yes" && ethr_have_native_atomics=yes


    ilckd="_InterlockedDecrement64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDDECREMENT64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedDecrement64_rel"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDDECREMENT64_REL 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedIncrement64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDINCREMENT64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedIncrement64_acq"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "1" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDINCREMENT64_ACQ 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedExchangeAdd64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDEXCHANGEADD64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedExchangeAdd64_acq"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDEXCHANGEADD64_ACQ 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedAnd64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDAND64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedOr64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDOR64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedExchange64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "2" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDEXCHANGE64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }


    ilckd="_InterlockedCompareExchange64"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "3" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE64 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	    test "$have_interlocked_op" = "yes" && ethr_have_native_atomics=yes

    ilckd="_InterlockedCompareExchange64_acq"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "3" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE64_ACQ 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	    test "$have_interlocked_op" = "yes" && ethr_have_native_atomics=yes

    ilckd="_InterlockedCompareExchange64_rel"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "3" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE64_REL 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	    test "$have_interlocked_op" = "yes" && ethr_have_native_atomics=yes


    ilckd="_InterlockedCompareExchange128"
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ilckd}()" >&5
$as_echo_n "checking for ${ilckd}()... " >&6; }
    case "4" in
	"1") ilckd_call="${ilckd}(var);";;
	"2") ilckd_call="${ilckd}(var, (__int64) 0);";;
	"3") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0);";;
	"4") ilckd_call="${ilckd}(var, (__int64) 0, (__int64) 0, arr);";;
    esac
    have_interlocked_op=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#define WIN32_LEAN_AND_MEAN
	#include <windows.h>
	#include <intrin.h>

int
main ()
{

	    volatile __int64 *var;
	    volatile __int64 arr[2];

	    $ilckd_call
	    return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_interlocked_op=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    test $have_interlocked_op = yes &&
cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE__INTERLOCKEDCOMPAREEXCHANGE128 1
_ACEOF

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_interlocked_op" >&5
$as_echo "$have_interlocked_op" >&6; }

	fi
	if test "$ethr_have_native_atomics" = "yes"; then
	   ethr_native_atomic_implementation=windows
	   ethr_have_native_spinlock=yes
	fi
	;;

    pthread)
	ETHR_THR_LIB_BASE_DIR=pthread

$as_echo "#define ETHR_PTHREADS 1" >>confdefs.h

	case $host_os in
	    openbsd*)
		# The default stack size is insufficient for our needs
		# on OpenBSD. We increase it to 256 kilo words.
		ethr_modified_default_stack_size=256;;
	    linux*)
		ETHR_DEFS="$ETHR_DEFS -D_GNU_SOURCE"

		if test	X$cross_compiling = Xyes; then
		    case X$erl_xcomp_linux_usable_sigusrx in
			X) usable_sigusrx=cross;;
			Xyes|Xno) usable_sigusrx=$erl_xcomp_linux_usable_sigusrx;;
			*) as_fn_error $? "Bad erl_xcomp_linux_usable_sigusrx value: $erl_xcomp_linux_usable_sigusrx" "$LINENO" 5;;
		    esac
		    case X$erl_xcomp_linux_usable_sigaltstack in
			X) usable_sigaltstack=cross;;
			Xyes|Xno) usable_sigaltstack=$erl_xcomp_linux_usable_sigaltstack;;
			*) as_fn_error $? "Bad erl_xcomp_linux_usable_sigaltstack value: $erl_xcomp_linux_usable_sigaltstack" "$LINENO" 5;;
		    esac
		else
		    # FIXME: Test for actual problems instead of kernel versions
		    linux_kernel_vsn_=`uname -r`
		    case $linux_kernel_vsn_ in
			[0-1].*|2.[0-1]|2.[0-1].*)
			    usable_sigusrx=no
			    usable_sigaltstack=no;;
			2.[2-3]|2.[2-3].*)
			    usable_sigusrx=yes
			    usable_sigaltstack=no;;
		    	*)
			    usable_sigusrx=yes
			    usable_sigaltstack=yes;;
		    esac
		fi

		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if SIGUSR1 and SIGUSR2 can be used" >&5
$as_echo_n "checking if SIGUSR1 and SIGUSR2 can be used... " >&6; }
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $usable_sigusrx" >&5
$as_echo "$usable_sigusrx" >&6; }
		if test $usable_sigusrx = cross; then
		    usable_sigusrx=yes
		    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result yes guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result yes guessed because of cross compilation" >&2;}
		fi
		if test $usable_sigusrx = no; then
		    ETHR_DEFS="$ETHR_DEFS -DETHR_UNUSABLE_SIGUSRX"
		fi

		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if sigaltstack can be used" >&5
$as_echo_n "checking if sigaltstack can be used... " >&6; }
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $usable_sigaltstack" >&5
$as_echo "$usable_sigaltstack" >&6; }
		if test $usable_sigaltstack = cross; then
		    usable_sigaltstack=yes
		    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result yes guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result yes guessed because of cross compilation" >&2;}
		fi
		if test $usable_sigaltstack = no; then
		    ETHR_DEFS="$ETHR_DEFS -DETHR_UNUSABLE_SIGALTSTACK"
		fi
		;;
	    *) ;;
	esac

			saved_cppflags="$CPPFLAGS"
	CPPFLAGS="$CPPFLAGS $ETHR_DEFS"

		saved_libs="$LIBS"
	LIBS="$LIBS $ETHR_X_LIBS"

				ac_fn_c_check_header_mongrel "$LINENO" "pthread.h" "ac_cv_header_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_pthread_h" = xyes; then :
  \

$as_echo "#define ETHR_HAVE_PTHREAD_H 1" >>confdefs.h

fi



		ac_fn_c_check_header_mongrel "$LINENO" "pthread/mit/pthread.h" "ac_cv_header_pthread_mit_pthread_h" "$ac_includes_default"
if test "x$ac_cv_header_pthread_mit_pthread_h" = xyes; then :
  \

$as_echo "#define ETHR_HAVE_MIT_PTHREAD_H 1" >>confdefs.h

fi



	if test $NEED_NPTL_PTHREAD_H = yes; then

$as_echo "#define ETHR_NEED_NPTL_PTHREAD_H 1" >>confdefs.h

	fi

	ac_fn_c_check_header_mongrel "$LINENO" "sched.h" "ac_cv_header_sched_h" "$ac_includes_default"
if test "x$ac_cv_header_sched_h" = xyes; then :
  \

$as_echo "#define ETHR_HAVE_SCHED_H 1" >>confdefs.h

fi



	ac_fn_c_check_header_mongrel "$LINENO" "sys/time.h" "ac_cv_header_sys_time_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_time_h" = xyes; then :
  \

$as_echo "#define ETHR_HAVE_SYS_TIME_H 1" >>confdefs.h

fi



	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <time.h>
			#include <sys/time.h>
int
main ()
{
struct timeval *tv; return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define ETHR_TIME_WITH_SYS_TIME 1" >>confdefs.h

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for usable PTHREAD_STACK_MIN" >&5
$as_echo_n "checking for usable PTHREAD_STACK_MIN... " >&6; }
	pthread_stack_min=no
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <limits.h>
#if defined(ETHR_NEED_NPTL_PTHREAD_H)
#include <nptl/pthread.h>
#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
#include <pthread/mit/pthread.h>
#elif defined(ETHR_HAVE_PTHREAD_H)
#include <pthread.h>
#endif

int
main ()
{
return PTHREAD_STACK_MIN;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  pthread_stack_min=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pthread_stack_min" >&5
$as_echo "$pthread_stack_min" >&6; }
	test $pthread_stack_min != yes || {

$as_echo "#define ETHR_HAVE_USABLE_PTHREAD_STACK_MIN 1" >>confdefs.h

	}

				ac_fn_c_check_func "$LINENO" "pthread_spin_lock" "ac_cv_func_pthread_spin_lock"
if test "x$ac_cv_func_pthread_spin_lock" = xyes; then :
  \
			ethr_have_native_spinlock=yes \

$as_echo "#define ETHR_HAVE_PTHREAD_SPIN_LOCK 1" >>confdefs.h

fi


	have_sched_yield=no
	have_librt_sched_yield=no
	ac_fn_c_check_func "$LINENO" "sched_yield" "ac_cv_func_sched_yield"
if test "x$ac_cv_func_sched_yield" = xyes; then :
  have_sched_yield=yes
fi

	if test $have_sched_yield = no; then
	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sched_yield in -lrt" >&5
$as_echo_n "checking for sched_yield in -lrt... " >&6; }
if ${ac_cv_lib_rt_sched_yield+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char sched_yield ();
int
main ()
{
return sched_yield ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_sched_yield=yes
else
  ac_cv_lib_rt_sched_yield=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_sched_yield" >&5
$as_echo "$ac_cv_lib_rt_sched_yield" >&6; }
if test "x$ac_cv_lib_rt_sched_yield" = xyes; then :
  have_librt_sched_yield=yes
			  ETHR_X_LIBS="$ETHR_X_LIBS -lrt"
fi

	fi
	if test $have_sched_yield = yes || test $have_librt_sched_yield = yes; then

$as_echo "#define ETHR_HAVE_SCHED_YIELD 1" >>confdefs.h

	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether sched_yield() returns an int" >&5
$as_echo_n "checking whether sched_yield() returns an int... " >&6; }
	    sched_yield_ret_int=no
	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

				#ifdef ETHR_HAVE_SCHED_H
				#include <sched.h>
				#endif

int
main ()
{
int sched_yield();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  sched_yield_ret_int=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $sched_yield_ret_int" >&5
$as_echo "$sched_yield_ret_int" >&6; }
	    if test $sched_yield_ret_int = yes; then

$as_echo "#define ETHR_SCHED_YIELD_RET_INT 1" >>confdefs.h

	    fi
	fi

	have_pthread_yield=no
	ac_fn_c_check_func "$LINENO" "pthread_yield" "ac_cv_func_pthread_yield"
if test "x$ac_cv_func_pthread_yield" = xyes; then :
  have_pthread_yield=yes
fi

	if test $have_pthread_yield = yes; then

$as_echo "#define ETHR_HAVE_PTHREAD_YIELD 1" >>confdefs.h

	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthread_yield() returns an int" >&5
$as_echo_n "checking whether pthread_yield() returns an int... " >&6; }
	    pthread_yield_ret_int=no
	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

				#if defined(ETHR_NEED_NPTL_PTHREAD_H)
				#include <nptl/pthread.h>
				#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
				#include <pthread/mit/pthread.h>
				#elif defined(ETHR_HAVE_PTHREAD_H)
				#include <pthread.h>
				#endif

int
main ()
{
int pthread_yield();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_yield_ret_int=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pthread_yield_ret_int" >&5
$as_echo "$pthread_yield_ret_int" >&6; }
	    if test $pthread_yield_ret_int = yes; then

$as_echo "#define ETHR_PTHREAD_YIELD_RET_INT 1" >>confdefs.h

	    fi
	fi

	have_pthread_rwlock_init=no
	ac_fn_c_check_func "$LINENO" "pthread_rwlock_init" "ac_cv_func_pthread_rwlock_init"
if test "x$ac_cv_func_pthread_rwlock_init" = xyes; then :
  have_pthread_rwlock_init=yes
fi

	if test $have_pthread_rwlock_init = yes; then

	    ethr_have_pthread_rwlockattr_setkind_np=no
	    ac_fn_c_check_func "$LINENO" "pthread_rwlockattr_setkind_np" "ac_cv_func_pthread_rwlockattr_setkind_np"
if test "x$ac_cv_func_pthread_rwlockattr_setkind_np" = xyes; then :
  ethr_have_pthread_rwlockattr_setkind_np=yes
fi


	    if test $ethr_have_pthread_rwlockattr_setkind_np = yes; then

$as_echo "#define ETHR_HAVE_PTHREAD_RWLOCKATTR_SETKIND_NP 1" >>confdefs.h


		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP" >&5
$as_echo_n "checking for PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP... " >&6; }
		ethr_pthread_rwlock_writer_nonrecursive_initializer_np=no
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

				#if defined(ETHR_NEED_NPTL_PTHREAD_H)
				#include <nptl/pthread.h>
				#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
				#include <pthread/mit/pthread.h>
				#elif defined(ETHR_HAVE_PTHREAD_H)
				#include <pthread.h>
				#endif

int
main ()
{

				pthread_rwlockattr_t *attr;
				return pthread_rwlockattr_setkind_np(attr,
				    PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_pthread_rwlock_writer_nonrecursive_initializer_np=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_pthread_rwlock_writer_nonrecursive_initializer_np" >&5
$as_echo "$ethr_pthread_rwlock_writer_nonrecursive_initializer_np" >&6; }
		if test $ethr_pthread_rwlock_writer_nonrecursive_initializer_np = yes; then

$as_echo "#define ETHR_HAVE_PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP 1" >>confdefs.h

		fi
	    fi
	fi

	if test "$force_pthread_rwlocks" = "yes"; then


$as_echo "#define ETHR_FORCE_PTHREAD_RWLOCK 1" >>confdefs.h


	    if test $have_pthread_rwlock_init = yes; then
		{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Forced usage of pthread rwlocks. Note that this implementation may suffer from starvation issues." >&5
$as_echo "$as_me: WARNING: Forced usage of pthread rwlocks. Note that this implementation may suffer from starvation issues." >&2;}
	    else
		as_fn_error $? "User forced usage of pthread rwlock, but no such implementation was found" "$LINENO" 5
	    fi
	fi

	ac_fn_c_check_func "$LINENO" "pthread_attr_setguardsize" "ac_cv_func_pthread_attr_setguardsize"
if test "x$ac_cv_func_pthread_attr_setguardsize" = xyes; then :
  \

$as_echo "#define ETHR_HAVE_PTHREAD_ATTR_SETGUARDSIZE 1" >>confdefs.h

fi


	if test "x$erl_monotonic_clock_id" != "x"; then
	  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthread_cond_timedwait() can use the monotonic clock $erl_monotonic_clock_id for timeout" >&5
$as_echo_n "checking whether pthread_cond_timedwait() can use the monotonic clock $erl_monotonic_clock_id for timeout... " >&6; }
	  pthread_cond_timedwait_monotonic=no
	  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

			#if defined(ETHR_NEED_NPTL_PTHREAD_H)
			#  include <nptl/pthread.h>
			#elif defined(ETHR_HAVE_MIT_PTHREAD_H)
			#  include <pthread/mit/pthread.h>
			#elif defined(ETHR_HAVE_PTHREAD_H)
			#  include <pthread.h>
			#endif
			#ifdef ETHR_TIME_WITH_SYS_TIME
			#  include <time.h>
			#  include <sys/time.h>
			#else
			#  ifdef ETHR_HAVE_SYS_TIME_H
			#    include <sys/time.h>
			#  else
			#    include <time.h>
			#  endif
			#endif
			#if defined(ETHR_HAVE_MACH_CLOCK_GET_TIME)
			#  include <mach/clock.h>
			#  include <mach/mach.h>
			#endif

int
main ()
{

			int res;
			pthread_condattr_t attr;
			pthread_cond_t cond;
			struct timespec cond_timeout;
			pthread_mutex_t mutex;
			res = pthread_condattr_init(&attr);
			res = pthread_condattr_setclock(&attr, ETHR_MONOTONIC_CLOCK_ID);
			res = pthread_cond_init(&cond, &attr);
			res = pthread_cond_timedwait(&cond, &mutex, &cond_timeout);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_cond_timedwait_monotonic=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pthread_cond_timedwait_monotonic" >&5
$as_echo "$pthread_cond_timedwait_monotonic" >&6; }
	  if test $pthread_cond_timedwait_monotonic = yes; then

$as_echo "#define ETHR_HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1" >>confdefs.h

	  fi
	fi

	linux_futex=no
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Linux futexes" >&5
$as_echo_n "checking for Linux futexes... " >&6; }
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

			#include <sys/syscall.h>
			#include <unistd.h>
			#include <linux/futex.h>
			#include <sys/time.h>

int
main ()
{

			int i = 1;
			syscall(__NR_futex, (void *) &i, FUTEX_WAKE, 1,
				(void*)0,(void*)0, 0);
			syscall(__NR_futex, (void *) &i, FUTEX_WAIT, 0,
				(void*)0,(void*)0, 0);
			return 0;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  linux_futex=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $linux_futex" >&5
$as_echo "$linux_futex" >&6; }
	test $linux_futex = yes &&
$as_echo "#define ETHR_HAVE_LINUX_FUTEX 1" >>confdefs.h


	pthread_setname=no
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_setname_np" >&5
$as_echo_n "checking for pthread_setname_np... " >&6; }
	old_CFLAGS=$CFLAGS
	CFLAGS="$CFLAGS -Werror"
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define __USE_GNU
                     #include <pthread.h>
int
main ()
{
pthread_setname_np(pthread_self(), "name");
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_setname=linux
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define __USE_GNU
                     #include <pthread.h>
int
main ()
{
pthread_set_name_np(pthread_self(), "name");
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_setname=bsd
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define _DARWIN_C_SOURCE
                     #include <pthread.h>
int
main ()
{
pthread_setname_np("name");
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_setname=darwin
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pthread_setname" >&5
$as_echo "$pthread_setname" >&6; }
        case $with_threadnames-$pthread_setname in
             yes-linux)
$as_echo "#define ETHR_HAVE_PTHREAD_SETNAME_NP_2 1" >>confdefs.h
;;
             yes-bsd)
$as_echo "#define ETHR_HAVE_PTHREAD_SET_NAME_NP_2 1" >>confdefs.h
;;
             yes-darwin)
$as_echo "#define ETHR_HAVE_PTHREAD_SETNAME_NP_1 1" >>confdefs.h
;;
             *) ;;
	esac

	pthread_getname=no
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_getname_np" >&5
$as_echo_n "checking for pthread_getname_np... " >&6; }
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define __USE_GNU
                     #define _DARWIN_C_SOURCE
                     #include <pthread.h>
int
main ()
{
char buff[256]; pthread_getname_np(pthread_self(), buff, 256);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_getname=linux
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define __USE_GNU
                     #define _DARWIN_C_SOURCE
                     #include <pthread.h>
int
main ()
{
char buff[256]; pthread_getname_np(pthread_self(), buff);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pthread_getname=ibm
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $pthread_getname" >&5
$as_echo "$pthread_getname" >&6; }
        case $pthread_getname in
             linux)
$as_echo "#define ETHR_HAVE_PTHREAD_GETNAME_NP_3 1" >>confdefs.h
;;
             ibm)
$as_echo "#define ETHR_HAVE_PTHREAD_GETNAME_NP_2 1" >>confdefs.h
;;
             *) ;;
	esac
	CFLAGS=$old_CFLAGS

	if test "X$disable_native_ethr_impls" = "Xyes"; then
	    ethr_have_native_atomics=no
	else


    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of short" >&5
$as_echo_n "checking size of short... " >&6; }
if ${ac_cv_sizeof_short+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_short" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (short)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_short=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5
$as_echo "$ac_cv_sizeof_short" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_SHORT $ac_cv_sizeof_short
_ACEOF


    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
$as_echo_n "checking size of int... " >&6; }
if ${ac_cv_sizeof_int+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_int" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (int)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_int=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
$as_echo "$ac_cv_sizeof_int" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_INT $ac_cv_sizeof_int
_ACEOF


    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
$as_echo_n "checking size of long... " >&6; }
if ${ac_cv_sizeof_long+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_long" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
$as_echo "$ac_cv_sizeof_long" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG $ac_cv_sizeof_long
_ACEOF


    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
$as_echo_n "checking size of long long... " >&6; }
if ${ac_cv_sizeof_long_long+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_long_long" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long_long=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
$as_echo "$ac_cv_sizeof_long_long" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long
_ACEOF


    # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of __int128_t" >&5
$as_echo_n "checking size of __int128_t... " >&6; }
if ${ac_cv_sizeof___int128_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (__int128_t))" "ac_cv_sizeof___int128_t"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type___int128_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (__int128_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof___int128_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof___int128_t" >&5
$as_echo "$ac_cv_sizeof___int128_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF___INT128_T $ac_cv_sizeof___int128_t
_ACEOF



    if test "$ac_cv_sizeof_short" = "4"; then
	gcc_atomic_type32="short"
    elif test "$ac_cv_sizeof_int" = "4"; then
	gcc_atomic_type32="int"
    elif test "$ac_cv_sizeof_long" = "4"; then
	gcc_atomic_type32="long"
    else
	as_fn_error $? "No 32-bit type found" "$LINENO" 5
    fi

    if test "$ac_cv_sizeof_int" = "8"; then
	gcc_atomic_type64="int"
    elif test "$ac_cv_sizeof_long" = "8"; then
	gcc_atomic_type64="long"
    elif test "$ac_cv_sizeof_long_long" = "8"; then
	gcc_atomic_type64="long long"
    else
	as_fn_error $? "No 64-bit type found" "$LINENO" 5
    fi

    if test "$ac_cv_sizeof___int128_t" = "16"; then
	gcc_atomic_type128="__int128_t"
    else
	gcc_atomic_type128="#error "
    fi
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working __sync_synchronize()" >&5
$as_echo_n "checking for a working __sync_synchronize()... " >&6; }
if ${ethr_cv___sync_synchronize+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv___sync_synchronize=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
 __sync_synchronize();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv___sync_synchronize=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
		       if test $ethr_cv___sync_synchronize = yes; then
			   #
			   # Old gcc versions on at least x86 have a buggy
			   # __sync_synchronize() which does not emit a
			   # memory barrier. We try to detect this by
			   # compiling to assembly with and without
			   # __sync_synchronize() and compare the results.
			   #

   ethr_test_filename="chk_if___sync_synchronize_noop_config1test.$$"
   cat > "${ethr_test_filename}.c" <<EOF
int
my_test(void)
{
    __sync_synchronize();
    return 0;
}
EOF
   $CC -O3 $ETHR_DEFS -c "${ethr_test_filename}.c" -o "${ethr_test_filename}1.o"
   cat > "${ethr_test_filename}.c" <<EOF
int
my_test(void)
{
    ;
    return 0;
}
EOF
   $CC -O3 $ETHR_DEFS -c "${ethr_test_filename}.c" -o "${ethr_test_filename}2.o"
   if diff "${ethr_test_filename}1.o" "${ethr_test_filename}2.o" >/dev/null 2>&1; then
      ethr___sync_synchronize_noop=yes
   else
      ethr___sync_synchronize_noop=no
   fi
   rm -f "${ethr_test_filename}.c" "${ethr_test_filename}1.o"  "${ethr_test_filename}2.o"

			   if test $ethr___sync_synchronize_noop = yes; then
			      # Got a buggy implementation of
			      # __sync_synchronize...
			      ethr_cv___sync_synchronize="no; buggy implementation"
			   fi
		       fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv___sync_synchronize" >&5
$as_echo "$ethr_cv___sync_synchronize" >&6; }

    if test "$ethr_cv___sync_synchronize" = "yes"; then
	have_sync_synchronize_value="~0"
    else
	have_sync_synchronize_value="0"
    fi

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___sync_synchronize $have_sync_synchronize_value
_ACEOF



    # __sync_add_and_fetch - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __sync_add_and_fetch in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_add_and_fetch(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_add_and_fetch(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __sync_add_and_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __sync_add_and_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_add_and_fetch(&var, __ATOMIC_RELAXED); res = __sync_add_and_fetch(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_add_and_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __sync_add_and_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __sync_add_and_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __sync_add_and_fetch(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __sync_add_and_fetch(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __sync_add_and_fetch" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __sync_add_and_fetch()" >&5
$as_echo_n "checking for 32-bit __sync_add_and_fetch()... " >&6; }
if ${ethr_cv_32bit___sync_add_and_fetch+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___sync_add_and_fetch=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___sync_add_and_fetch=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___sync_add_and_fetch" >&5
$as_echo "$ethr_cv_32bit___sync_add_and_fetch" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __sync_add_and_fetch()" >&5
$as_echo_n "checking for 64-bit __sync_add_and_fetch()... " >&6; }
if ${ethr_cv_64bit___sync_add_and_fetch+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___sync_add_and_fetch=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___sync_add_and_fetch=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___sync_add_and_fetch" >&5
$as_echo "$ethr_cv_64bit___sync_add_and_fetch" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __sync_add_and_fetch()" >&5
$as_echo_n "checking for 128-bit __sync_add_and_fetch()... " >&6; }
if ${ethr_cv_128bit___sync_add_and_fetch+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___sync_add_and_fetch=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___sync_add_and_fetch=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___sync_add_and_fetch" >&5
$as_echo "$ethr_cv_128bit___sync_add_and_fetch" >&6; }

	case $ethr_cv_128bit___sync_add_and_fetch-$ethr_cv_64bit___sync_add_and_fetch-$ethr_cv_32bit___sync_add_and_fetch in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___sync_add_and_fetch $have_atomic_ops
_ACEOF



    # __sync_fetch_and_and - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __sync_fetch_and_and in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_and(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_and(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __sync_fetch_and_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __sync_fetch_and_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_and(&var, __ATOMIC_RELAXED); res = __sync_fetch_and_and(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __sync_fetch_and_and(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __sync_fetch_and_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __sync_fetch_and_and(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __sync_fetch_and_and(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __sync_fetch_and_and" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __sync_fetch_and_and()" >&5
$as_echo_n "checking for 32-bit __sync_fetch_and_and()... " >&6; }
if ${ethr_cv_32bit___sync_fetch_and_and+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___sync_fetch_and_and=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___sync_fetch_and_and=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___sync_fetch_and_and" >&5
$as_echo "$ethr_cv_32bit___sync_fetch_and_and" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __sync_fetch_and_and()" >&5
$as_echo_n "checking for 64-bit __sync_fetch_and_and()... " >&6; }
if ${ethr_cv_64bit___sync_fetch_and_and+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___sync_fetch_and_and=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___sync_fetch_and_and=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___sync_fetch_and_and" >&5
$as_echo "$ethr_cv_64bit___sync_fetch_and_and" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __sync_fetch_and_and()" >&5
$as_echo_n "checking for 128-bit __sync_fetch_and_and()... " >&6; }
if ${ethr_cv_128bit___sync_fetch_and_and+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___sync_fetch_and_and=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___sync_fetch_and_and=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___sync_fetch_and_and" >&5
$as_echo "$ethr_cv_128bit___sync_fetch_and_and" >&6; }

	case $ethr_cv_128bit___sync_fetch_and_and-$ethr_cv_64bit___sync_fetch_and_and-$ethr_cv_32bit___sync_fetch_and_and in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___sync_fetch_and_and $have_atomic_ops
_ACEOF



    # __sync_fetch_and_or - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __sync_fetch_and_or in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_or(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_or(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __sync_fetch_and_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __sync_fetch_and_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_or(&var, __ATOMIC_RELAXED); res = __sync_fetch_and_or(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_fetch_and_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __sync_fetch_and_or(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __sync_fetch_and_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __sync_fetch_and_or(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __sync_fetch_and_or(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __sync_fetch_and_or" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __sync_fetch_and_or()" >&5
$as_echo_n "checking for 32-bit __sync_fetch_and_or()... " >&6; }
if ${ethr_cv_32bit___sync_fetch_and_or+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___sync_fetch_and_or=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___sync_fetch_and_or=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___sync_fetch_and_or" >&5
$as_echo "$ethr_cv_32bit___sync_fetch_and_or" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __sync_fetch_and_or()" >&5
$as_echo_n "checking for 64-bit __sync_fetch_and_or()... " >&6; }
if ${ethr_cv_64bit___sync_fetch_and_or+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___sync_fetch_and_or=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___sync_fetch_and_or=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___sync_fetch_and_or" >&5
$as_echo "$ethr_cv_64bit___sync_fetch_and_or" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __sync_fetch_and_or()" >&5
$as_echo_n "checking for 128-bit __sync_fetch_and_or()... " >&6; }
if ${ethr_cv_128bit___sync_fetch_and_or+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___sync_fetch_and_or=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___sync_fetch_and_or=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___sync_fetch_and_or" >&5
$as_echo "$ethr_cv_128bit___sync_fetch_and_or" >&6; }

	case $ethr_cv_128bit___sync_fetch_and_or-$ethr_cv_64bit___sync_fetch_and_or-$ethr_cv_32bit___sync_fetch_and_or in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___sync_fetch_and_or $have_atomic_ops
_ACEOF



    # __sync_val_compare_and_swap - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __sync_val_compare_and_swap in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_val_compare_and_swap(&var, __ATOMIC_RELAXED); res = __sync_val_compare_and_swap(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __sync_val_compare_and_swap(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __sync_val_compare_and_swap(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __sync_val_compare_and_swap(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __sync_val_compare_and_swap" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __sync_val_compare_and_swap()" >&5
$as_echo_n "checking for 32-bit __sync_val_compare_and_swap()... " >&6; }
if ${ethr_cv_32bit___sync_val_compare_and_swap+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___sync_val_compare_and_swap=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___sync_val_compare_and_swap=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___sync_val_compare_and_swap" >&5
$as_echo "$ethr_cv_32bit___sync_val_compare_and_swap" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __sync_val_compare_and_swap()" >&5
$as_echo_n "checking for 64-bit __sync_val_compare_and_swap()... " >&6; }
if ${ethr_cv_64bit___sync_val_compare_and_swap+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___sync_val_compare_and_swap=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___sync_val_compare_and_swap=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___sync_val_compare_and_swap" >&5
$as_echo "$ethr_cv_64bit___sync_val_compare_and_swap" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __sync_val_compare_and_swap()" >&5
$as_echo_n "checking for 128-bit __sync_val_compare_and_swap()... " >&6; }
if ${ethr_cv_128bit___sync_val_compare_and_swap+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___sync_val_compare_and_swap=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___sync_val_compare_and_swap=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___sync_val_compare_and_swap" >&5
$as_echo "$ethr_cv_128bit___sync_val_compare_and_swap" >&6; }

	case $ethr_cv_128bit___sync_val_compare_and_swap-$ethr_cv_64bit___sync_val_compare_and_swap-$ethr_cv_32bit___sync_val_compare_and_swap in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___sync_val_compare_and_swap $have_atomic_ops
_ACEOF




    # __atomic_store_n - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __atomic_store_n in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_store_n(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_store_n(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __atomic_store_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __atomic_store_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_store_n(&var, __ATOMIC_RELAXED); res = __atomic_store_n(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_store_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __atomic_store_n(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __atomic_store_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __atomic_store_n(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __atomic_store_n(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __atomic_store_n" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __atomic_store_n()" >&5
$as_echo_n "checking for 32-bit __atomic_store_n()... " >&6; }
if ${ethr_cv_32bit___atomic_store_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___atomic_store_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___atomic_store_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___atomic_store_n" >&5
$as_echo "$ethr_cv_32bit___atomic_store_n" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __atomic_store_n()" >&5
$as_echo_n "checking for 64-bit __atomic_store_n()... " >&6; }
if ${ethr_cv_64bit___atomic_store_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___atomic_store_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___atomic_store_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___atomic_store_n" >&5
$as_echo "$ethr_cv_64bit___atomic_store_n" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __atomic_store_n()" >&5
$as_echo_n "checking for 128-bit __atomic_store_n()... " >&6; }
if ${ethr_cv_128bit___atomic_store_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___atomic_store_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___atomic_store_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___atomic_store_n" >&5
$as_echo "$ethr_cv_128bit___atomic_store_n" >&6; }

	case $ethr_cv_128bit___atomic_store_n-$ethr_cv_64bit___atomic_store_n-$ethr_cv_32bit___atomic_store_n in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___atomic_store_n $have_atomic_ops
_ACEOF



    # __atomic_load_n - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __atomic_load_n in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_load_n(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_load_n(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __atomic_load_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __atomic_load_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_load_n(&var, __ATOMIC_RELAXED); res = __atomic_load_n(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_load_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __atomic_load_n(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __atomic_load_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __atomic_load_n(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __atomic_load_n(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __atomic_load_n" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __atomic_load_n()" >&5
$as_echo_n "checking for 32-bit __atomic_load_n()... " >&6; }
if ${ethr_cv_32bit___atomic_load_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___atomic_load_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___atomic_load_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___atomic_load_n" >&5
$as_echo "$ethr_cv_32bit___atomic_load_n" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __atomic_load_n()" >&5
$as_echo_n "checking for 64-bit __atomic_load_n()... " >&6; }
if ${ethr_cv_64bit___atomic_load_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___atomic_load_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___atomic_load_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___atomic_load_n" >&5
$as_echo "$ethr_cv_64bit___atomic_load_n" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __atomic_load_n()" >&5
$as_echo_n "checking for 128-bit __atomic_load_n()... " >&6; }
if ${ethr_cv_128bit___atomic_load_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___atomic_load_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___atomic_load_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___atomic_load_n" >&5
$as_echo "$ethr_cv_128bit___atomic_load_n" >&6; }

	case $ethr_cv_128bit___atomic_load_n-$ethr_cv_64bit___atomic_load_n-$ethr_cv_32bit___atomic_load_n in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___atomic_load_n $have_atomic_ops
_ACEOF



    # __atomic_add_fetch - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __atomic_add_fetch in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_add_fetch(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_add_fetch(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __atomic_add_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __atomic_add_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_add_fetch(&var, __ATOMIC_RELAXED); res = __atomic_add_fetch(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_add_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __atomic_add_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __atomic_add_fetch(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __atomic_add_fetch(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __atomic_add_fetch(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __atomic_add_fetch" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __atomic_add_fetch()" >&5
$as_echo_n "checking for 32-bit __atomic_add_fetch()... " >&6; }
if ${ethr_cv_32bit___atomic_add_fetch+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___atomic_add_fetch=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___atomic_add_fetch=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___atomic_add_fetch" >&5
$as_echo "$ethr_cv_32bit___atomic_add_fetch" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __atomic_add_fetch()" >&5
$as_echo_n "checking for 64-bit __atomic_add_fetch()... " >&6; }
if ${ethr_cv_64bit___atomic_add_fetch+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___atomic_add_fetch=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___atomic_add_fetch=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___atomic_add_fetch" >&5
$as_echo "$ethr_cv_64bit___atomic_add_fetch" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __atomic_add_fetch()" >&5
$as_echo_n "checking for 128-bit __atomic_add_fetch()... " >&6; }
if ${ethr_cv_128bit___atomic_add_fetch+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___atomic_add_fetch=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___atomic_add_fetch=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___atomic_add_fetch" >&5
$as_echo "$ethr_cv_128bit___atomic_add_fetch" >&6; }

	case $ethr_cv_128bit___atomic_add_fetch-$ethr_cv_64bit___atomic_add_fetch-$ethr_cv_32bit___atomic_add_fetch in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___atomic_add_fetch $have_atomic_ops
_ACEOF



    # __atomic_fetch_and - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __atomic_fetch_and in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_and(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_and(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __atomic_fetch_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __atomic_fetch_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_and(&var, __ATOMIC_RELAXED); res = __atomic_fetch_and(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __atomic_fetch_and(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __atomic_fetch_and(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __atomic_fetch_and(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __atomic_fetch_and(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __atomic_fetch_and" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __atomic_fetch_and()" >&5
$as_echo_n "checking for 32-bit __atomic_fetch_and()... " >&6; }
if ${ethr_cv_32bit___atomic_fetch_and+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___atomic_fetch_and=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___atomic_fetch_and=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___atomic_fetch_and" >&5
$as_echo "$ethr_cv_32bit___atomic_fetch_and" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __atomic_fetch_and()" >&5
$as_echo_n "checking for 64-bit __atomic_fetch_and()... " >&6; }
if ${ethr_cv_64bit___atomic_fetch_and+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___atomic_fetch_and=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___atomic_fetch_and=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___atomic_fetch_and" >&5
$as_echo "$ethr_cv_64bit___atomic_fetch_and" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __atomic_fetch_and()" >&5
$as_echo_n "checking for 128-bit __atomic_fetch_and()... " >&6; }
if ${ethr_cv_128bit___atomic_fetch_and+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___atomic_fetch_and=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___atomic_fetch_and=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___atomic_fetch_and" >&5
$as_echo "$ethr_cv_128bit___atomic_fetch_and" >&6; }

	case $ethr_cv_128bit___atomic_fetch_and-$ethr_cv_64bit___atomic_fetch_and-$ethr_cv_32bit___atomic_fetch_and in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___atomic_fetch_and $have_atomic_ops
_ACEOF



    # __atomic_fetch_or - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __atomic_fetch_or in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_or(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_or(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __atomic_fetch_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __atomic_fetch_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_or(&var, __ATOMIC_RELAXED); res = __atomic_fetch_or(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_fetch_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __atomic_fetch_or(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __atomic_fetch_or(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __atomic_fetch_or(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __atomic_fetch_or(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __atomic_fetch_or" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __atomic_fetch_or()" >&5
$as_echo_n "checking for 32-bit __atomic_fetch_or()... " >&6; }
if ${ethr_cv_32bit___atomic_fetch_or+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___atomic_fetch_or=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___atomic_fetch_or=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___atomic_fetch_or" >&5
$as_echo "$ethr_cv_32bit___atomic_fetch_or" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __atomic_fetch_or()" >&5
$as_echo_n "checking for 64-bit __atomic_fetch_or()... " >&6; }
if ${ethr_cv_64bit___atomic_fetch_or+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___atomic_fetch_or=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___atomic_fetch_or=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___atomic_fetch_or" >&5
$as_echo "$ethr_cv_64bit___atomic_fetch_or" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __atomic_fetch_or()" >&5
$as_echo_n "checking for 128-bit __atomic_fetch_or()... " >&6; }
if ${ethr_cv_128bit___atomic_fetch_or+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___atomic_fetch_or=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___atomic_fetch_or=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___atomic_fetch_or" >&5
$as_echo "$ethr_cv_128bit___atomic_fetch_or" >&6; }

	case $ethr_cv_128bit___atomic_fetch_or-$ethr_cv_64bit___atomic_fetch_or-$ethr_cv_32bit___atomic_fetch_or in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___atomic_fetch_or $have_atomic_ops
_ACEOF



    # __atomic_compare_exchange_n - atomic_op

    for atomic_bit_size in 32 64 128; do
	case $atomic_bit_size in
	    32) gcc_atomic_type="$gcc_atomic_type32";;
	    64) gcc_atomic_type="$gcc_atomic_type64";;
	    128) gcc_atomic_type="$gcc_atomic_type128";;
	esac
	gcc_atomic_lockfree="int x[(2*__atomic_always_lock_free(sizeof($gcc_atomic_type), 0))-1]"
	case __atomic_compare_exchange_n in
	    __sync_add_and_fetch | __sync_fetch_and_and | __sync_fetch_and_or)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0);"
		;;
	    __sync_val_compare_and_swap)
		atomic_call="volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0, ($gcc_atomic_type) 0);"
		;;
	    __atomic_store_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_load_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_compare_exchange_n(&var, __ATOMIC_RELAXED); res = __atomic_compare_exchange_n(&var, __ATOMIC_ACQUIRE);"
		;;
	    __atomic_add_fetch| __atomic_fetch_and | __atomic_fetch_or)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type res = __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELAXED); res = __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0, __ATOMIC_ACQUIRE); res = __atomic_compare_exchange_n(&var, ($gcc_atomic_type) 0, __ATOMIC_RELEASE);"
		;;
	    __atomic_compare_exchange_n)
		atomic_call="$gcc_atomic_lockfree; volatile $gcc_atomic_type var; $gcc_atomic_type val; int res = __atomic_compare_exchange_n(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_RELAXED, __ATOMIC_RELAXED); res = __atomic_compare_exchange_n(&var, &val, ($gcc_atomic_type) 0, 0, __ATOMIC_ACQUIRE, __ATOMIC_ACQUIRE);"
		;;
	    *)
		as_fn_error $? "Internal error: missing implementation for __atomic_compare_exchange_n" "$LINENO" 5
		;;
	esac
	eval atomic${atomic_bit_size}_call=\"$atomic_call\"
    done

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 32-bit __atomic_compare_exchange_n()" >&5
$as_echo_n "checking for 32-bit __atomic_compare_exchange_n()... " >&6; }
if ${ethr_cv_32bit___atomic_compare_exchange_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_32bit___atomic_compare_exchange_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic32_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_32bit___atomic_compare_exchange_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_32bit___atomic_compare_exchange_n" >&5
$as_echo "$ethr_cv_32bit___atomic_compare_exchange_n" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 64-bit __atomic_compare_exchange_n()" >&5
$as_echo_n "checking for 64-bit __atomic_compare_exchange_n()... " >&6; }
if ${ethr_cv_64bit___atomic_compare_exchange_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_64bit___atomic_compare_exchange_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic64_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_64bit___atomic_compare_exchange_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_64bit___atomic_compare_exchange_n" >&5
$as_echo "$ethr_cv_64bit___atomic_compare_exchange_n" >&6; }
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for 128-bit __atomic_compare_exchange_n()" >&5
$as_echo_n "checking for 128-bit __atomic_compare_exchange_n()... " >&6; }
if ${ethr_cv_128bit___atomic_compare_exchange_n+:} false; then :
  $as_echo_n "(cached) " >&6
else

		       ethr_cv_128bit___atomic_compare_exchange_n=no
		       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
$atomic128_call
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_128bit___atomic_compare_exchange_n=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_128bit___atomic_compare_exchange_n" >&5
$as_echo "$ethr_cv_128bit___atomic_compare_exchange_n" >&6; }

	case $ethr_cv_128bit___atomic_compare_exchange_n-$ethr_cv_64bit___atomic_compare_exchange_n-$ethr_cv_32bit___atomic_compare_exchange_n in
	    no-no-no)
		have_atomic_ops=0;;
	    no-no-yes)
		have_atomic_ops=4;;
	    no-yes-no)
		have_atomic_ops=8;;
	    no-yes-yes)
		have_atomic_ops=12;;
	    yes-no-no)
		have_atomic_ops=16;;
	    yes-no-yes)
		have_atomic_ops=20;;
	    yes-yes-no)
		have_atomic_ops=24;;
	    yes-yes-yes)
		have_atomic_ops=28;;
	esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE___atomic_compare_exchange_n $have_atomic_ops
_ACEOF



    ethr_have_gcc_native_atomics=no
    ethr_arm_dbm_sy_instr_val=0
    ethr_arm_dbm_st_instr_val=0
    ethr_arm_dbm_ld_instr_val=0
    case "$GCC-$host_cpu" in
	yes-arm*|yes-aarch*)
	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ARM 'dmb sy' instruction" >&5
$as_echo_n "checking for ARM 'dmb sy' instruction... " >&6; }
if ${ethr_cv_arm_dbm_sy_instr+:} false; then :
  $as_echo_n "(cached) " >&6
else

				ethr_cv_arm_dbm_sy_instr=no
				cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

						__asm__ __volatile__("dmb sy" : : : "memory");

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_arm_dbm_sy_instr=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_arm_dbm_sy_instr" >&5
$as_echo "$ethr_cv_arm_dbm_sy_instr" >&6; }
	    if test $ethr_cv_arm_dbm_sy_instr = yes; then
		ethr_arm_dbm_sy_instr_val=1
		test $ethr_cv_64bit___atomic_compare_exchange_n = yes &&
		    ethr_have_gcc_native_atomics=yes
	    fi
	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ARM 'dmb st' instruction" >&5
$as_echo_n "checking for ARM 'dmb st' instruction... " >&6; }
if ${ethr_cv_arm_dbm_st_instr+:} false; then :
  $as_echo_n "(cached) " >&6
else

				ethr_cv_arm_dbm_st_instr=no
				cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

						__asm__ __volatile__("dmb st" : : : "memory");

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_arm_dbm_st_instr=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_arm_dbm_st_instr" >&5
$as_echo "$ethr_cv_arm_dbm_st_instr" >&6; }
	    if test $ethr_cv_arm_dbm_st_instr = yes; then
		ethr_arm_dbm_st_instr_val=1
	    fi
	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ARM 'dmb ld' instruction" >&5
$as_echo_n "checking for ARM 'dmb ld' instruction... " >&6; }
if ${ethr_cv_arm_dbm_ld_instr+:} false; then :
  $as_echo_n "(cached) " >&6
else

				ethr_cv_arm_dbm_ld_instr=no
				cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

						__asm__ __volatile__("dmb ld" : : : "memory");

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_cv_arm_dbm_ld_instr=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_cv_arm_dbm_ld_instr" >&5
$as_echo "$ethr_cv_arm_dbm_ld_instr" >&6; }
	    if test $ethr_cv_arm_dbm_ld_instr = yes; then
		ethr_arm_dbm_ld_instr_val=1
	    fi;;
	*)
	    ;;
    esac

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE_GCC_ASM_ARM_DMB_INSTRUCTION $ethr_arm_dbm_sy_instr_val
_ACEOF


cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE_GCC_ASM_ARM_DMB_ST_INSTRUCTION $ethr_arm_dbm_st_instr_val
_ACEOF


cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE_GCC_ASM_ARM_DMB_LD_INSTRUCTION $ethr_arm_dbm_ld_instr_val
_ACEOF

    test $ethr_cv_32bit___sync_val_compare_and_swap = yes &&
    	ethr_have_gcc_native_atomics=yes
    test $ethr_cv_64bit___sync_val_compare_and_swap = yes &&
    	ethr_have_gcc_native_atomics=yes
    if test "$ethr_cv___sync_synchronize" = "yes"; then
    	test $ethr_cv_64bit___atomic_compare_exchange_n = yes &&
    	    ethr_have_gcc_native_atomics=yes
    	test $ethr_cv_32bit___atomic_compare_exchange_n = yes &&
    	    ethr_have_gcc_native_atomics=yes
    fi
    ethr_have_gcc_atomic_builtins=0
    if test $ethr_have_gcc_native_atomics = yes; then
       ethr_native_atomic_implementation=gcc_sync
       test $ethr_cv_32bit___atomic_compare_exchange_n = yes && ethr_have_gcc_atomic_builtins=1
       test $ethr_cv_64bit___atomic_compare_exchange_n = yes && ethr_have_gcc_atomic_builtins=1
       test $ethr_have_gcc_atomic_builtins = 1 && ethr_native_atomic_implementation=gcc_atomic_sync
    fi

cat >>confdefs.h <<_ACEOF
#define ETHR_HAVE_GCC___ATOMIC_BUILTINS $ethr_have_gcc_atomic_builtins
_ACEOF

    test $ethr_have_gcc_native_atomics = yes && ethr_have_native_atomics=yes


	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for a usable libatomic_ops implementation" >&5
$as_echo_n "checking for a usable libatomic_ops implementation... " >&6; }
	    case "x$with_libatomic_ops" in
	        xno | xyes | x)
	    	    libatomic_ops_include=
	    	    ;;
	        *)
	    	    if test -d "${with_libatomic_ops}/include"; then
	    	        libatomic_ops_include="-I$with_libatomic_ops/include"
	    	        CPPFLAGS="$CPPFLAGS $libatomic_ops_include"
	    	    else
	    	        as_fn_error $? "libatomic_ops include directory $with_libatomic_ops/include not found" "$LINENO" 5
	    	    fi;;
	    esac
	    ethr_have_libatomic_ops=no
	    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include "atomic_ops.h"
int
main ()
{

	    	    	    volatile AO_t x;
	    	    	    AO_t y;
	    	    	    int z;

	    	    	    AO_nop_full();
#if defined(AO_HAVE_store)
	    	    	    AO_store(&x, (AO_t) 0);
#elif defined(AO_HAVE_store_release)
	    	    	    AO_store_release(&x, (AO_t) 0);
#else
#error No store
#endif
#if defined(AO_HAVE_load)
	    	    	    z = AO_load(&x);
#elif defined(AO_HAVE_load_acquire)
	    	    	    z = AO_load_acquire(&x);
#else
#error No load
#endif
#if defined(AO_HAVE_compare_and_swap_full)
	    	    	    z = AO_compare_and_swap_full(&x, (AO_t) 0, (AO_t) 1);
#elif defined(AO_HAVE_compare_and_swap_release)
	    	    	    z = AO_compare_and_swap_release(&x, (AO_t) 0, (AO_t) 1);
#elif defined(AO_HAVE_compare_and_swap_acquire)
	    	    	    z = AO_compare_and_swap_acquire(&x, (AO_t) 0, (AO_t) 1);
#elif defined(AO_HAVE_compare_and_swap)
	    	    	    z = AO_compare_and_swap(&x, (AO_t) 0, (AO_t) 1);
#else
#error No compare_and_swap
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ethr_have_native_atomics=yes
			 ethr_native_atomic_implementation=libatomic_ops
	    	         ethr_have_libatomic_ops=yes
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ethr_have_libatomic_ops" >&5
$as_echo "$ethr_have_libatomic_ops" >&6; }
	    if test $ethr_have_libatomic_ops = yes; then
	        # The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of AO_t" >&5
$as_echo_n "checking size of AO_t... " >&6; }
if ${ac_cv_sizeof_AO_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (AO_t))" "ac_cv_sizeof_AO_t"        "
	    	    	    	    #include <stdio.h>
	    	    	    	    #include \"atomic_ops.h\"

"; then :

else
  if test "$ac_cv_type_AO_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (AO_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_AO_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_AO_t" >&5
$as_echo "$ac_cv_sizeof_AO_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_AO_T $ac_cv_sizeof_AO_t
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF_AO_T $ac_cv_sizeof_AO_t
_ACEOF



$as_echo "#define ETHR_HAVE_LIBATOMIC_OPS 1" >>confdefs.h

	        if test "x$with_libatomic_ops" != "xno" && test "x$with_libatomic_ops" != "x"; then

$as_echo "#define ETHR_PREFER_LIBATOMIC_OPS_NATIVE_IMPLS 1" >>confdefs.h

	        fi
	        ETHR_DEFS="$ETHR_DEFS $libatomic_ops_include"
	    elif test "x$with_libatomic_ops" != "xno" && test "x$with_libatomic_ops" != "x"; then
	        as_fn_error $? "No usable libatomic_ops implementation found" "$LINENO" 5
	    fi

	    case "$host_cpu" in
	      sparc | sun4u | sparc64 | sun4v)
	    	    case "$with_sparc_memory_order" in
	    	        "TSO")

$as_echo "#define ETHR_SPARC_TSO 1" >>confdefs.h
;;
	    	        "PSO")

$as_echo "#define ETHR_SPARC_PSO 1" >>confdefs.h
;;
	    	        "RMO"|"")

$as_echo "#define ETHR_SPARC_RMO 1" >>confdefs.h
;;
	    	        *)
	    	    	    as_fn_error $? "Unsupported Sparc memory order: $with_sparc_memory_order" "$LINENO" 5;;
	    	    esac
		    ethr_native_atomic_implementation=ethread
	    	    ethr_have_native_atomics=yes;;
	      i86pc | i*86 | x86_64 | amd64)
	    	    if test "$enable_x86_out_of_order" = "yes"; then

$as_echo "#define ETHR_X86_OUT_OF_ORDER 1" >>confdefs.h

	    	    fi
		    ethr_native_atomic_implementation=ethread
	    	    ethr_have_native_atomics=yes;;
	      macppc | ppc | powerpc | "Power Macintosh")
	      	    ethr_native_atomic_implementation=ethread
	    	    ethr_have_native_atomics=yes;;
	      tile)
	            ethr_native_atomic_implementation=ethread
	    	    ethr_have_native_atomics=yes;;
	      *)
	    	    ;;
	    esac

	fi

	test ethr_have_native_atomics = "yes" && ethr_have_native_spinlock=yes

		LIBS=$saved_libs
		CPPFLAGS=$saved_cppflags

	;;
    *)
	;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether default stack size should be modified" >&5
$as_echo_n "checking whether default stack size should be modified... " >&6; }
if test "x$ethr_modified_default_stack_size" != "x"; then

cat >>confdefs.h <<_ACEOF
#define ETHR_MODIFIED_DEFAULT_STACK_SIZE $ethr_modified_default_stack_size
_ACEOF

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes; to $ethr_modified_default_stack_size kilo words" >&5
$as_echo "yes; to $ethr_modified_default_stack_size kilo words" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

if test "x$ETHR_THR_LIB_BASE" != "x"; then
	ETHR_DEFS="-DUSE_THREADS $ETHR_DEFS"
	ETHR_LIBS="-l$ethr_lib_name -lerts_internal_r $ETHR_X_LIBS"
	ETHR_LIB_NAME=$ethr_lib_name
fi

# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
$as_echo_n "checking size of void *... " >&6; }
if ${ac_cv_sizeof_void_p+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_void_p" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (void *)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_void_p=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
$as_echo "$ac_cv_sizeof_void_p" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_VOID_P $ac_cv_sizeof_void_p
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF_PTR $ac_cv_sizeof_void_p
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
$as_echo_n "checking size of int... " >&6; }
if ${ac_cv_sizeof_int+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_int" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (int)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_int=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
$as_echo "$ac_cv_sizeof_int" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_INT $ac_cv_sizeof_int
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF_INT $ac_cv_sizeof_int
_ACEOF

# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
$as_echo_n "checking size of long... " >&6; }
if ${ac_cv_sizeof_long+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_long" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
$as_echo "$ac_cv_sizeof_long" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG $ac_cv_sizeof_long
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF_LONG $ac_cv_sizeof_long
_ACEOF

# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
$as_echo_n "checking size of long long... " >&6; }
if ${ac_cv_sizeof_long_long+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_long_long" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long_long=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
$as_echo "$ac_cv_sizeof_long_long" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF_LONG_LONG $ac_cv_sizeof_long_long
_ACEOF

# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of __int64" >&5
$as_echo_n "checking size of __int64... " >&6; }
if ${ac_cv_sizeof___int64+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (__int64))" "ac_cv_sizeof___int64"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type___int64" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (__int64)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof___int64=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof___int64" >&5
$as_echo "$ac_cv_sizeof___int64" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF___INT64 $ac_cv_sizeof___int64
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF___INT64 $ac_cv_sizeof___int64
_ACEOF

# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of __int128_t" >&5
$as_echo_n "checking size of __int128_t... " >&6; }
if ${ac_cv_sizeof___int128_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (__int128_t))" "ac_cv_sizeof___int128_t"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type___int128_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (__int128_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof___int128_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof___int128_t" >&5
$as_echo "$ac_cv_sizeof___int128_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF___INT128_T $ac_cv_sizeof___int128_t
_ACEOF



cat >>confdefs.h <<_ACEOF
#define ETHR_SIZEOF___INT128_T $ac_cv_sizeof___int128_t
_ACEOF



case X$erl_xcomp_bigendian in
    X) ;;
    Xyes|Xno) ac_cv_c_bigendian=$erl_xcomp_bigendian;;
    *) as_fn_error $? "Bad erl_xcomp_bigendian value: $erl_xcomp_bigendian" "$LINENO" 5;;
esac

 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
$as_echo_n "checking whether byte ordering is bigendian... " >&6; }
if ${ac_cv_c_bigendian+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_c_bigendian=unknown
    # See if we're dealing with a universal compiler.
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifndef __APPLE_CC__
	       not a universal capable compiler
	     #endif
	     typedef int dummy;

_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

	# Check for potential -arch flags.  It is not universal unless
	# there are at least two -arch flags with different values.
	ac_arch=
	ac_prev=
	for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do
	 if test -n "$ac_prev"; then
	   case $ac_word in
	     i?86 | x86_64 | ppc | ppc64)
	       if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then
		 ac_arch=$ac_word
	       else
		 ac_cv_c_bigendian=universal
		 break
	       fi
	       ;;
	   esac
	   ac_prev=
	 elif test "x$ac_word" = "x-arch"; then
	   ac_prev=arch
	 fi
       done
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    if test $ac_cv_c_bigendian = unknown; then
      # See if sys/param.h defines the BYTE_ORDER macro.
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
	     #include <sys/param.h>

int
main ()
{
#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
		     && LITTLE_ENDIAN)
	      bogus endian macros
	     #endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  # It does; now see whether it defined to BIG_ENDIAN or not.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
		#include <sys/param.h>

int
main ()
{
#if BYTE_ORDER != BIG_ENDIAN
		 not big endian
		#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_c_bigendian=yes
else
  ac_cv_c_bigendian=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    fi
    if test $ac_cv_c_bigendian = unknown; then
      # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>

int
main ()
{
#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN)
	      bogus endian macros
	     #endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  # It does; now see whether it defined to _BIG_ENDIAN or not.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>

int
main ()
{
#ifndef _BIG_ENDIAN
		 not big endian
		#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_c_bigendian=yes
else
  ac_cv_c_bigendian=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    fi
    if test $ac_cv_c_bigendian = unknown; then
      # Compile a test program.
      if test "$cross_compiling" = yes; then :
  # Try to guess by grepping values from an object file.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
short int ascii_mm[] =
		  { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
		short int ascii_ii[] =
		  { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
		int use_ascii (int i) {
		  return ascii_mm[i] + ascii_ii[i];
		}
		short int ebcdic_ii[] =
		  { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
		short int ebcdic_mm[] =
		  { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
		int use_ebcdic (int i) {
		  return ebcdic_mm[i] + ebcdic_ii[i];
		}
		extern int foo;

int
main ()
{
return use_ascii (foo) == use_ebcdic (foo);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
	      ac_cv_c_bigendian=yes
	    fi
	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
	      if test "$ac_cv_c_bigendian" = unknown; then
		ac_cv_c_bigendian=no
	      else
		# finding both strings is unlikely to happen, but who knows?
		ac_cv_c_bigendian=unknown
	      fi
	    fi
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{

	     /* Are we little or big endian?  From Harbison&Steele.  */
	     union
	     {
	       long int l;
	       char c[sizeof (long int)];
	     } u;
	     u.l = 1;
	     return u.c[sizeof (long int) - 1] == 1;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  ac_cv_c_bigendian=no
else
  ac_cv_c_bigendian=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

    fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
$as_echo "$ac_cv_c_bigendian" >&6; }
 case $ac_cv_c_bigendian in #(
   yes)
     $as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h
;; #(
   no)
      ;; #(
   universal)

$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h

     ;; #(
   *)
     as_fn_error $? "unknown endianness
 presetting ac_cv_c_bigendian=no (or yes) will help" "$LINENO" 5 ;;
 esac


if test "$ac_cv_c_bigendian" = "yes"; then

$as_echo "#define ETHR_BIGENDIAN 1" >>confdefs.h

fi

case X$erl_xcomp_double_middle_endian in
    X) ;;
    Xyes|Xno|Xunknown) ac_cv_c_double_middle_endian=$erl_xcomp_double_middle_endian;;
    *) as_fn_error $? "Bad erl_xcomp_double_middle_endian value: $erl_xcomp_double_middle_endian" "$LINENO" 5;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether double word ordering is middle-endian" >&5
$as_echo_n "checking whether double word ordering is middle-endian... " >&6; }
if ${ac_cv_c_double_middle_endian+:} false; then :
  $as_echo_n "(cached) " >&6
else
  # It does not; compile a test program.
if test "$cross_compiling" = yes; then :
  ac_cv_c_double_middle=unknown
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>

int
main(void)
{
  int i = 0;
  int zero = 0;
  int bigendian;
  int zero_index = 0;

  union
  {
    long int l;
    char c[sizeof (long int)];
  } u;

  /* we'll use the one with 32-bit words */
  union
  {
    double d;
    unsigned int c[2];
  } vint;

  union
  {
    double d;
    unsigned long c[2];
  } vlong;

  union
  {
    double d;
    unsigned short c[2];
  } vshort;


  /* Are we little or big endian?  From Harbison&Steele.  */
  u.l = 1;
  bigendian = (u.c[sizeof (long int) - 1] == 1);

  zero_index = bigendian ? 1 : 0;

  vint.d = 1.0;
  vlong.d = 1.0;
  vshort.d = 1.0;

  if (sizeof(unsigned int) == 4)
    {
      if (vint.c[zero_index] != 0)
	zero = 1;
    }
  else if (sizeof(unsigned long) == 4)
    {
      if (vlong.c[zero_index] != 0)
	zero = 1;
    }
  else if (sizeof(unsigned short) == 4)
    {
      if (vshort.c[zero_index] != 0)
	zero = 1;
    }

  exit (zero);
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  ac_cv_c_double_middle_endian=no
else
  ac_cv_c_double_middle_endian=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_double_middle_endian" >&5
$as_echo "$ac_cv_c_double_middle_endian" >&6; }
case $ac_cv_c_double_middle_endian in
  yes)

$as_echo "#define DOUBLE_MIDDLE_ENDIAN 1" >>confdefs.h
 ;;
  no)
     ;;
  *)
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unknown double endianness
presetting ac_cv_c_double_middle_endian=no (or yes) will help" >&5
$as_echo "$as_me: WARNING: unknown double endianness
presetting ac_cv_c_double_middle_endian=no (or yes) will help" >&2;} ;;
esac


ETHR_X86_SSE2_ASM=no
case "$GCC-$ac_cv_sizeof_void_p-$host_cpu" in
  yes-4-i86pc | yes-4-i*86 | yes-4-x86_64 | yes-4-amd64)
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc sse2 asm support" >&5
$as_echo_n "checking for gcc sse2 asm support... " >&6; }
    save_CFLAGS="$CFLAGS"
    CFLAGS="$CFLAGS -msse2"
    gcc_sse2_asm=no
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

		long long x, *y;
		__asm__ __volatile__("movq %1, %0\n\t" : "=x"(x) : "m"(*y) : "memory");

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  gcc_sse2_asm=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    CFLAGS="$save_CFLAGS"
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_sse2_asm" >&5
$as_echo "$gcc_sse2_asm" >&6; }
    if test "$gcc_sse2_asm" = "yes"; then

$as_echo "#define ETHR_GCC_HAVE_SSE2_ASM_SUPPORT 1" >>confdefs.h

      ETHR_X86_SSE2_ASM=yes
    fi
    ;;
  *)
    ;;
esac

case "$GCC-$host_cpu" in
  yes-i86pc | yes-i*86 | yes-x86_64 | yes-amd64)

    if test $ac_cv_sizeof_void_p = 4; then
       dw_cmpxchg="cmpxchg8b"
    else
       dw_cmpxchg="cmpxchg16b"
    fi

    gcc_dw_cmpxchg_asm=no
    gcc_pic_dw_cmpxchg_asm=no
    gcc_cflags_pic=no
    gcc_cmpxchg8b_pic_no_clobber_ebx=no
    gcc_cmpxchg8b_pic_no_clobber_ebx_register_shortage=no

    save_CFLAGS="$CFLAGS"

    # Check if it works out of the box using passed CFLAGS
    # and with -fPIC added to CFLAGS if the passed CFLAGS
    # doesn't trigger position independent code
    pic_cmpxchg=unknown
    while true; do

        case $pic_cmpxchg in
	  yes) pic_text="pic ";;
	  *) pic_text="";;
	esac

	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc $pic_text$dw_cmpxchg plain asm support" >&5
$as_echo_n "checking for gcc $pic_text$dw_cmpxchg plain asm support... " >&6; }

	plain_cmpxchg=no
    	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

    char xchgd;
    long new[2], xchg[2], *p;
    __asm__ __volatile__(
#if ETHR_SIZEOF_PTR == 4
	"lock; cmpxchg8b %0\n\t"
#else
	"lock; cmpxchg16b %0\n\t"
#endif
	"setz %3\n\t"
	: "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=q"(xchgd)
	: "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "c"(new[1]), "b"(new[0])
	: "cc", "memory");

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  plain_cmpxchg=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $plain_cmpxchg" >&5
$as_echo "$plain_cmpxchg" >&6; }

	if test $pic_cmpxchg = yes; then
	   gcc_pic_dw_cmpxchg_asm=$plain_cmpxchg
	   break
	fi

	gcc_dw_cmpxchg_asm=$plain_cmpxchg

    	# If not already compiling to position independent
	# code add -fPIC to CFLAGS and do it again. This
	# since we want also want to know how to compile
	# to position independent code since this might
	# cause problems with the use of the EBX register
	# as input to the asm on 32-bit x86 and old gcc
	# compilers (gcc vsn < 5).

    	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

#if !defined(__PIC__) || !__PIC__
#  error no pic
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  pic_cmpxchg=yes
	 gcc_cflags_pic=yes
else
  pic_cmpxchg=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

	if test $pic_cmpxchg = yes; then
	   gcc_pic_dw_cmpxchg_asm=$gcc_dw_cmpxchg_asm
	   break
	fi

	CFLAGS="$save_CFLAGS -fPIC"
	pic_cmpxchg=yes

    done

    if test $gcc_pic_dw_cmpxchg_asm = no && test $ac_cv_sizeof_void_p = 4; then

      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc pic cmpxchg8b asm support with EBX workaround" >&5
$as_echo_n "checking for gcc pic cmpxchg8b asm support with EBX workaround... " >&6; }

      # Check if we can work around it by managing the ebx
      # register explicitly in the asm...

      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

    char xchgd;
    long new[2], xchg[2], *p;
    __asm__ __volatile__(
	"pushl %%ebx\n\t"
	"movl %8, %%ebx\n\t"
	"lock; cmpxchg8b %0\n\t"
	"setz %3\n\t"
	"popl %%ebx\n\t"
	: "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=q"(xchgd)
	: "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "c"(new[1]), "r"(new[0])
	: "cc", "memory");

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  gcc_pic_dw_cmpxchg_asm=yes
	 gcc_cmpxchg8b_pic_no_clobber_ebx=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

      { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_pic_dw_cmpxchg_asm" >&5
$as_echo "$gcc_pic_dw_cmpxchg_asm" >&6; }

      if test $gcc_pic_dw_cmpxchg_asm = no; then

      	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for gcc pic cmpxchg8b asm support with EBX and register shortage workarounds" >&5
$as_echo_n "checking for gcc pic cmpxchg8b asm support with EBX and register shortage workarounds... " >&6; }
        # If no optimization is enabled we sometimes get a
	# register shortage. Check if we can work around
	# this...

      	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

      char xchgd;
      long new[2], xchg[2], *p;
      __asm__ __volatile__(
	"pushl %%ebx\n\t"
	"movl (%7), %%ebx\n\t"
	"movl 4(%7), %%ecx\n\t"
	"lock; cmpxchg8b %0\n\t"
	"setz %3\n\t"
	"popl %%ebx\n\t"
	: "=m"(*p), "=d"(xchg[1]), "=a"(xchg[0]), "=c"(xchgd)
	: "m"(*p), "1"(xchg[1]), "2"(xchg[0]), "r"(new)
	: "cc", "memory");


  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  gcc_pic_dw_cmpxchg_asm=yes
	 gcc_cmpxchg8b_pic_no_clobber_ebx=yes
	 gcc_cmpxchg8b_pic_no_clobber_ebx_register_shortage=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

        { $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_pic_dw_cmpxchg_asm" >&5
$as_echo "$gcc_pic_dw_cmpxchg_asm" >&6; }
      fi

      if test $gcc_cflags_pic = yes; then
        gcc_dw_cmpxchg_asm=$gcc_pic_dw_cmpxchg_asm
      fi

   fi

    CFLAGS="$save_CFLAGS"

    if test "$gcc_cmpxchg8b_pic_no_clobber_ebx" = "yes"; then

$as_echo "#define ETHR_CMPXCHG8B_PIC_NO_CLOBBER_EBX 1" >>confdefs.h

    fi
    if test "$gcc_cmpxchg8b_pic_no_clobber_ebx_register_shortage" = "yes"; then

$as_echo "#define ETHR_CMPXCHG8B_REGISTER_SHORTAGE 1" >>confdefs.h

    fi
    if test "$gcc_dw_cmpxchg_asm" = "yes"; then

$as_echo "#define ETHR_GCC_HAVE_DW_CMPXCHG_ASM_SUPPORT 1" >>confdefs.h

    fi;;
  *)
    ;;
esac


$as_echo "#define ETHR_HAVE_ETHREAD_DEFINES 1" >>confdefs.h












if test "X$ETHR_LIB_NAME" = "X"; then
   as_fn_error $? "cannot build emulator since no thread library was found" "$LINENO" 5
fi

TYPES=opt

DIRTY_SCHEDULER_TEST=$enable_dirty_schedulers_test

test $DIRTY_SCHEDULER_TEST != yes || {
    test -f "$ERL_TOP/erts/CONF_INFO" || echo "" > "$ERL_TOP/erts/CONF_INFO"
    cat >> $ERL_TOP/erts/CONF_INFO <<EOF

                 WARNING:
                   Dirty Scheduler Test has been enabled. This
                   feature is for debugging purposes only.
                   Poor performance as well as strange system
                   characteristics is expected!

EOF
}

test "X$smp_require_native_atomics" = "Xyes" &&

$as_echo "#define ETHR_SMP_REQUIRE_NATIVE_IMPLS 1" >>confdefs.h


case "$ethr_have_native_atomics-$smp_require_native_atomics-$ethr_have_native_spinlock" in
  yes-*)
	if test "$ethr_native_atomic_implementation" = "gcc_sync"; then
	    test -f "$ERL_TOP/erts/CONF_INFO" ||
		echo "" > "$ERL_TOP/erts/CONF_INFO"
	    cat >> $ERL_TOP/erts/CONF_INFO <<EOF

                 WARNING:
                   Only gcc's __sync_* builtins available for
                   atomic memory access. This will cause lots
                   of expensive and unnecessary memory barrier
                   instructions to be issued which will make
                   the performance of the runtime system
                   suffer. You are *strongly* advised to
                   upgrade to a gcc version that supports the
                   __atomic_* builtins (at least gcc version
                   4.7) or build with libatomic_ops. See the
                   "Atomic Memory Operations and the VM"
		   chapter of \$ERL_TOP/HOWTO/INSTALL.md for
                   more information.

EOF
	fi
	;;

  no-yes-*)
	as_fn_error $? "No native atomic implementation found. See the \\"Atomic Memory Operations and the VM\\" chapter of \$ERL_TOP/HOWTO/INSTALL.md for more information." "$LINENO" 5
	;;

  no-no-yes)

	test -f "$ERL_TOP/erts/CONF_INFO" ||
	    echo "" > "$ERL_TOP/erts/CONF_INFO"
	cat >> $ERL_TOP/erts/CONF_INFO <<EOF

                 No native atomic implementation available.
                 Fallbacks implemented using spinlocks will be
                 used. Note that the performance of the SMP
                 runtime system will suffer immensely due to
		 this.

EOF
	;;

  no-no-no)
	test -f "$ERL_TOP/erts/CONF_INFO" ||
	    echo "" > "$ERL_TOP/erts/CONF_INFO"
	cat >> "$ERL_TOP/erts/CONF_INFO" <<EOF

                 No native atomic implementation, nor no native
                 spinlock implementation available. Fallbacks
                 implemented using mutexes will be used. Note
                 that the performance of the SMP runtime system
                 will suffer immensely due to this.

EOF
	;;

esac


for ac_func in posix_fadvise closefrom
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

for ac_header in linux/falloc.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "linux/falloc.h" "ac_cv_header_linux_falloc_h" "$ac_includes_default"
if test "x$ac_cv_header_linux_falloc_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LINUX_FALLOC_H 1
_ACEOF

fi

done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether fallocate() works" >&5
$as_echo_n "checking whether fallocate() works... " >&6; }
if ${i_cv_fallocate_works+:} false; then :
  $as_echo_n "(cached) " >&6
else

    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

        #include <stdio.h>
        #include <stdlib.h>
        #include <fcntl.h>
        #include <unistd.h>
	#include <fcntl.h>
	#include <linux/falloc.h>

int
main ()
{

	int fd = creat("conftest.temp", 0600);
        fallocate(fd, FALLOC_FL_KEEP_SIZE,(off_t)  1024,(off_t)  1024);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  i_cv_fallocate_works=yes
else
  i_cv_fallocate_works=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $i_cv_fallocate_works" >&5
$as_echo "$i_cv_fallocate_works" >&6; }
if test $i_cv_fallocate_works = yes; then

$as_echo "#define HAVE_FALLOCATE 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether posix_fallocate() works" >&5
$as_echo_n "checking whether posix_fallocate() works... " >&6; }
if ${i_cv_posix_fallocate_works+:} false; then :
  $as_echo_n "(cached) " >&6
else

    if test "$cross_compiling" = yes; then :

        i_cv_posix_fallocate_works=no

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

        #if !defined(__sun) && !defined(__sun__)
        #define _XOPEN_SOURCE 600
        #endif
        #include <stdio.h>
        #include <stdlib.h>
        #include <fcntl.h>
        #include <unistd.h>
        #if defined(__GLIBC__) && (__GLIBC__ < 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ < 7))
            possibly broken posix_fallocate
        #endif
        int main() {
            int fd = creat("conftest.temp", 0600);
            int ret;
            if (-1 == fd) {
               perror("creat()");
               return 2;
            }
            ret = posix_fallocate(fd, 1024, 1024) < 0 ? 1 : 0;
            unlink("conftest.temp");
            return ret;
        }

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :

        i_cv_posix_fallocate_works=yes

else

        i_cv_posix_fallocate_works=no

fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $i_cv_posix_fallocate_works" >&5
$as_echo "$i_cv_posix_fallocate_works" >&6; }
if test $i_cv_posix_fallocate_works = yes; then

$as_echo "#define HAVE_POSIX_FALLOCATE /**/" >>confdefs.h

fi

#
# EMU_THR_LIB_NAME, EMU_THR_LIBS, EMU_THR_X_LIBS, and EMU_THR_DEFS is
# used by the emulator, and can (but should not) be used by applications
# that only require thread support when the emulator has thread support.
# Other applications should use ETHR_LIB_NAME, ETHR_LIBS, ETHR_X_LIBS,
# and ETHR_DEFS.
#

EMU_THR_LIB_NAME=
EMU_THR_X_LIBS=
EMU_THR_LIBS=
EMU_THR_DEFS=

# Threads enabled for emulator
EMU_THR_LIB_NAME=$ETHR_LIB_NAME
EMU_THR_X_LIBS=$ETHR_X_LIBS
EMU_THR_LIBS=$ETHR_LIBS
EMU_THR_DEFS=$ETHR_DEFS
ENABLE_ALLOC_TYPE_VARS="$ENABLE_ALLOC_TYPE_VARS threads"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether lock checking should be enabled" >&5
$as_echo_n "checking whether lock checking should be enabled... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_lock_check" >&5
$as_echo "$enable_lock_check" >&6; }
if test "x$enable_lock_check" != "xno"; then
    EMU_THR_DEFS="$EMU_THR_DEFS -DERTS_ENABLE_LOCK_CHECK"
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether lock counters should be enabled" >&5
$as_echo_n "checking whether lock counters should be enabled... " >&6; }
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_lock_count" >&5
$as_echo "$enable_lock_count" >&6; }
if test "x$enable_lock_count" != "xno"; then
    TYPES="$TYPES lcnt"
fi

case $host_os in
    linux*)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether dlopen() needs to be called before first call to dlerror()" >&5
$as_echo_n "checking whether dlopen() needs to be called before first call to dlerror()... " >&6; }
	if test "x$ETHR_THR_LIB_BASE_TYPE" != "xposix_nptl"; then

$as_echo "#define ERTS_NEED_DLOPEN_BEFORE_DLERROR 1" >>confdefs.h

		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	else
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	fi
	;;
    *)
	;;
esac

# Remove -D_WIN32_WINNT*, -DWINVER* and -D_GNU_SOURCE from EMU_THR_DEFS
# (defined in CFLAGS). Note that we want to keep these flags
# in ETHR_DEFS, but not in EMU_THR_DEFS.
new_emu_thr_defs=
for thr_def in $EMU_THR_DEFS; do
    case $thr_def in
	-D_GNU_SOURCE*|-D_WIN32_WINNT*|-DWINVER*)
	    ;;
	*)
	    new_emu_thr_defs="$new_emu_thr_defs $thr_def"
	    ;;
    esac
done
EMU_THR_DEFS=$new_emu_thr_defs






if test "x$enable_lock_check" = "xno"; then
    EMU_LOCK_CHECKING=no
else
    EMU_LOCK_CHECKING=yes
fi





ERTS_INTERNAL_X_LIBS=

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for kstat_open in -lkstat" >&5
$as_echo_n "checking for kstat_open in -lkstat... " >&6; }
if ${ac_cv_lib_kstat_kstat_open+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lkstat  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char kstat_open ();
int
main ()
{
return kstat_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_kstat_kstat_open=yes
else
  ac_cv_lib_kstat_kstat_open=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_kstat_kstat_open" >&5
$as_echo "$ac_cv_lib_kstat_kstat_open" >&6; }
if test "x$ac_cv_lib_kstat_kstat_open" = xyes; then :

$as_echo "#define HAVE_KSTAT 1" >>confdefs.h

ERTS_INTERNAL_X_LIBS="$ERTS_INTERNAL_X_LIBS -lkstat"
fi






THR_LIBS=$ETHR_X_LIBS
THR_DEFS=$ETHR_DEFS





TERMCAP_LIB=

if test "x$with_termcap" != "xno" &&
   test "X$host" != "Xwin32"; then
    # try these libs
    termcap_libs="tinfo ncurses curses termcap termlib"

    for termcap_lib in $termcap_libs; do
	as_ac_Lib=`$as_echo "ac_cv_lib_$termcap_lib''_tgetent" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for tgetent in -l$termcap_lib" >&5
$as_echo_n "checking for tgetent in -l$termcap_lib... " >&6; }
if eval \${$as_ac_Lib+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-l$termcap_lib  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char tgetent ();
int
main ()
{
return tgetent ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  eval "$as_ac_Lib=yes"
else
  eval "$as_ac_Lib=no"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
eval ac_res=\$$as_ac_Lib
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Lib"\" = x"yes"; then :
  TERMCAP_LIB="-l$termcap_lib"
fi

	if test "x$TERMCAP_LIB" != "x"; then
	    break
	fi
    done

    if test "x$TERMCAP_LIB" = "x"; then
	as_fn_error $? "No curses library functions found" "$LINENO" 5
    fi
fi



if test "x$TERMCAP_LIB" != "x"; then


$as_echo "#define HAVE_TERMCAP 1" >>confdefs.h

fi

if test "X$host" != "Xwin32"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for wcwidth" >&5
$as_echo_n "checking for wcwidth... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <wchar.h>
int
main ()
{
wcwidth(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_wcwidth=yes
else
  have_wcwidth=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
    if test $have_wcwidth = yes; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }

$as_echo "#define HAVE_WCWIDTH 1" >>confdefs.h

    fi
fi


# Check whether --enable-builtin-zlib was given.
if test "${enable_builtin_zlib+set}" = set; then :
  enableval=$enable_builtin_zlib;  case "$enableval" in
      no) enable_builtin_zlib=no ;;
      *)  enable_builtin_zlib=yes ;;
    esac
else
  enable_builtin_zlib=no
fi


Z_LIB=

if test "x$enable_builtin_zlib" = "xyes"; then

$as_echo "#define HAVE_ZLIB_INFLATEGETDICTIONARY 1" >>confdefs.h

  { $as_echo "$as_me:${as_lineno-$LINENO}: Using our own built-in zlib source" >&5
$as_echo "$as_me: Using our own built-in zlib source" >&6;}
else
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for zlib 1.2.5 or higher" >&5
$as_echo_n "checking for zlib 1.2.5 or higher... " >&6; }
zlib_save_LIBS=$LIBS
LIBS="-lz $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include "zlib.h"

int
main ()
{

#if ZLIB_VERNUM >= 0x1250
  Bytef s[1];
  s[0] = 0;
  (void) adler32((uLong)0, s, 1);
#else
#error "No zlib 1.2.5 or higher found"
error
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

 Z_LIB="-lz"

$as_echo "#define HAVE_LIBZ 1" >>confdefs.h

 { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }

else

 { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

if test "$Z_LIB" != ""; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing inflateGetDictionary" >&5
$as_echo_n "checking for library containing inflateGetDictionary... " >&6; }
if ${ac_cv_search_inflateGetDictionary+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char inflateGetDictionary ();
int
main ()
{
return inflateGetDictionary ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' z; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_inflateGetDictionary=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_inflateGetDictionary+:} false; then :
  break
fi
done
if ${ac_cv_search_inflateGetDictionary+:} false; then :

else
  ac_cv_search_inflateGetDictionary=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_inflateGetDictionary" >&5
$as_echo "$ac_cv_search_inflateGetDictionary" >&6; }
ac_res=$ac_cv_search_inflateGetDictionary
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

$as_echo "#define HAVE_ZLIB_INFLATEGETDICTIONARY 1" >>confdefs.h

fi

fi

LIBS=$zlib_save_LIBS

fi




# Check whether --enable-esock was given.
if test "${enable_esock+set}" = set; then :
  enableval=$enable_esock;
fi


USE_ESOCK=yes

if test "x$enable_esock" = "xyes"; then
    USE_ESOCK=yes
else
    if test "x$enable_esock" = "xno"; then
        USE_ESOCK=no
    fi
fi

if test "x$USE_ESOCK" = "xyes"; then
    if test "x$USE_ESOCK" = "xyes"; then
        for ac_func in localtime_r strftime getprotoent setprotoent endprotoent
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

    fi
fi





# Check whether --enable-esock_use_rcvsndtimeo was given.
if test "${enable_esock_use_rcvsndtimeo+set}" = set; then :
  enableval=$enable_esock_use_rcvsndtimeo;
fi


if test "x$enable_esock_rcvsndtimeo" = "xyes"; then

$as_echo "#define ESOCK_USE_RCVSNDTIMEO 1" >>confdefs.h

fi




# Check whether --with-esock-counter-size was given.
if test "${with_esock_counter_size+set}" = set; then :
  withval=$with_esock_counter_size;
else
  with_esock_counter_size=64
fi


case "$with_esock_counter_size" in
     16)

$as_echo "#define ESOCK_COUNTER_SIZE 16" >>confdefs.h

	;;
     24)

$as_echo "#define ESOCK_COUNTER_SIZE 24" >>confdefs.h

	;;
     32)

$as_echo "#define ESOCK_COUNTER_SIZE 32" >>confdefs.h

	;;
     48)

$as_echo "#define ESOCK_COUNTER_SIZE 48" >>confdefs.h

	;;
     64)

$as_echo "#define ESOCK_COUNTER_SIZE 64" >>confdefs.h

	;;
     *)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Invalid esock counter size ($with_esock_counter_size), using default (64)" >&5
$as_echo "$as_me: WARNING: Invalid esock counter size ($with_esock_counter_size), using default (64)" >&2;}

$as_echo "#define ESOCK_COUNTER_SIZE 64" >>confdefs.h

		;;
esac


ac_fn_c_check_func "$LINENO" "if_nametoindex" "ac_cv_func_if_nametoindex"
if test "x$ac_cv_func_if_nametoindex" = xyes; then :

$as_echo "#define HAVE_IF_NAMETOINDEX 1" >>confdefs.h


fi

ac_fn_c_check_func "$LINENO" "if_indextoname" "ac_cv_func_if_indextoname"
if test "x$ac_cv_func_if_indextoname" = xyes; then :

$as_echo "#define HAVE_IF_INDEXTONAME 1" >>confdefs.h

fi

ac_fn_c_check_func "$LINENO" "if_nameindex" "ac_cv_func_if_nameindex"
if test "x$ac_cv_func_if_nameindex" = xyes; then :

$as_echo "#define HAVE_IF_NAMEINDEX 1" >>confdefs.h

fi

ac_fn_c_check_func "$LINENO" "if_freenameindex" "ac_cv_func_if_freenameindex"
if test "x$ac_cv_func_if_freenameindex" = xyes; then :

$as_echo "#define HAVE_IF_FREENAMEINDEX 1" >>confdefs.h


fi

ac_fn_c_check_func "$LINENO" "gethostname" "ac_cv_func_gethostname"
if test "x$ac_cv_func_gethostname" = xyes; then :

$as_echo "#define HAVE_GETHOSTNAME 1" >>confdefs.h


fi




# Check whether --enable-esock-socket-registry was given.
if test "${enable_esock_socket_registry+set}" = set; then :
  enableval=$enable_esock_socket_registry;
fi


if test "x$enable_esock_socket_registry" = "xno"; then :


$as_echo "#define ESOCK_USE_SOCKET_REGISTRY 0" >>confdefs.h

else


$as_echo "#define ESOCK_USE_SOCKET_REGISTRY 1" >>confdefs.h

fi


ac_fn_c_check_member "$LINENO" "struct ifreq" "ifr_map" "ac_cv_member_struct_ifreq_ifr_map" "#ifdef __WIN32__
	 #else
	 #include <net/if.h>
	 #endif

"
if test "x$ac_cv_member_struct_ifreq_ifr_map" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_IFREQ_IFR_MAP 1
_ACEOF


$as_echo "#define ESOCK_USE_IFMAP /**/" >>confdefs.h

fi


ac_fn_c_check_member "$LINENO" "struct ifreq" "ifr_hwaddr" "ac_cv_member_struct_ifreq_ifr_hwaddr" "#ifdef __WIN32__
	 #else
	 #include <net/if.h>
	 #endif

"
if test "x$ac_cv_member_struct_ifreq_ifr_hwaddr" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_IFREQ_IFR_HWADDR 1
_ACEOF


$as_echo "#define ESOCK_USE_HWADDR /**/" >>confdefs.h

fi


ac_fn_c_check_member "$LINENO" "struct ifreq" "ifr_ifindex" "ac_cv_member_struct_ifreq_ifr_ifindex" "#ifdef __WIN32__
	 #else
	 #include <net/if.h>
	 #endif

"
if test "x$ac_cv_member_struct_ifreq_ifr_ifindex" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_IFREQ_IFR_IFINDEX 1
_ACEOF


$as_echo "#define ESOCK_USE_IFINDEX /**/" >>confdefs.h

fi


ac_fn_c_check_member "$LINENO" "struct ifreq" "ifr_index" "ac_cv_member_struct_ifreq_ifr_index" "#ifdef __WIN32__
	 #else
	 #include <net/if.h>
	 #endif

"
if test "x$ac_cv_member_struct_ifreq_ifr_index" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_IFREQ_IFR_INDEX 1
_ACEOF


$as_echo "#define ESOCK_USE_INDEX /**/" >>confdefs.h

fi



#--------------------------------------------------------------------
#	Check for the existence of the -lsocket and -lnsl libraries.
#	The order here is important, so that they end up in the right
#	order in the command line generated by make.  Here are some
#	special considerations:
#	1. Use "connect" and "accept" to check for -lsocket, and
#	   "gethostbyname" to check for -lnsl.
#	2. Use each function name only once:  can't redo a check because
#	   autoconf caches the results of the last check and won't redo it.
#	3. Use -lnsl and -lsocket only if they supply procedures that
#	   aren't already present in the normal libraries.  This is because
#	   IRIX 5.2 has libraries, but they aren't needed and they're
#	   bogus:  they goof up name resolution if used.
#	4. On some SVR4 systems, can't use -lsocket without -lnsl too.
#	   To get around this problem, check for both libraries together
#	   if -lsocket doesn't work by itself.
#--------------------------------------------------------------------

tk_oldLibs=$LIBS
erl_checkBoth=0
SOCKET_LIBS=""
ac_fn_c_check_func "$LINENO" "connect" "ac_cv_func_connect"
if test "x$ac_cv_func_connect" = xyes; then :
  erl_checkSocket=0
else
  erl_checkSocket=1
fi

if test "$erl_checkSocket" = 1; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lsocket" >&5
$as_echo_n "checking for main in -lsocket... " >&6; }
if ${ac_cv_lib_socket_main+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lsocket  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


int
main ()
{
return main ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_socket_main=yes
else
  ac_cv_lib_socket_main=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_socket_main" >&5
$as_echo "$ac_cv_lib_socket_main" >&6; }
if test "x$ac_cv_lib_socket_main" = xyes; then :
  SOCKET_LIBS="-lsocket"
else
  erl_checkBoth=1
fi

fi

if test "$erl_checkBoth" = 1; then
    LIBS="$LIBS -lsocket -lnsl"
    ac_fn_c_check_func "$LINENO" "accept" "ac_cv_func_accept"
if test "x$ac_cv_func_accept" = xyes; then :
  SOCKET_LIBS="-lsocket -lnsl"
fi

fi

LIBS="$tk_oldLibs $SOCKET_LIBS"
ac_fn_c_check_func "$LINENO" "gethostbyname" "ac_cv_func_gethostbyname"
if test "x$ac_cv_func_gethostbyname" = xyes; then :

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for main in -lnsl" >&5
$as_echo_n "checking for main in -lnsl... " >&6; }
if ${ac_cv_lib_nsl_main+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lnsl  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */


int
main ()
{
return main ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_nsl_main=yes
else
  ac_cv_lib_nsl_main=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_nsl_main" >&5
$as_echo "$ac_cv_lib_nsl_main" >&6; }
if test "x$ac_cv_lib_nsl_main" = xyes; then :
  SOCKET_LIBS="$SOCKET_LIBS -lnsl"
fi

fi

ac_fn_c_check_func "$LINENO" "gethostbyname_r" "ac_cv_func_gethostbyname_r"
if test "x$ac_cv_func_gethostbyname_r" = xyes; then :
  have_gethostbyname_r=yes
fi


LIBS="$tk_oldLibs $SOCKET_LIBS"




if test "$have_gethostbyname_r" = yes; then
	# OK, so we have gethostbyname_r() - but do we know how to call it...?
	# (if not, HAVE_GETHOSTBYNAME_R will not be defined at all)
	case $host_os in
		solaris2*)

$as_echo "#define HAVE_GETHOSTBYNAME_R GHBN_R_SOLARIS" >>confdefs.h

		;;
		aix*|os400*)
			# AIX version also needs "struct hostent_data" defn
			cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <netdb.h>
int
main ()
{
struct hostent_data hd;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define HAVE_GETHOSTBYNAME_R GHBN_R_AIX" >>confdefs.h

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
		;;
		*)
			cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdio.h>
#ifdef __GLIBC__
yes
#endif

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "^yes$" >/dev/null 2>&1; then :

$as_echo "#define HAVE_GETHOSTBYNAME_R GHBN_R_GLIBC" >>confdefs.h

fi
rm -f conftest*

		;;
	esac
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working posix_openpt implementation" >&5
$as_echo_n "checking for working posix_openpt implementation... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#define _XOPEN_SOURCE 600
#include <stdlib.h>
#include <fcntl.h>

int
main ()
{

    int mfd = posix_openpt(O_RDWR);
    ptsname(mfd);
    grantpt(mfd);
    unlockpt(mfd);
    return mfd;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  working_posix_openpt=yes
else
  working_posix_openpt=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

if test "X$working_posix_openpt" = "Xyes"; then

$as_echo "#define HAVE_WORKING_POSIX_OPENPT 1" >>confdefs.h

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if netdb.h requires netinet/in.h to be previously included" >&5
$as_echo_n "checking if netdb.h requires netinet/in.h to be previously included... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <netdb.h>
_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "sockaddr_in" >/dev/null 2>&1; then :
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <netinet/in.h>
			     #include <netdb.h>
int
main ()
{
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  need_in_h=yes
else
  need_in_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
else
  need_in_h=no
fi
rm -f conftest*


if test $need_in_h = yes; then

$as_echo "#define NETDB_H_NEEDS_IN_H 1" >>confdefs.h

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for socklen_t" >&5
$as_echo_n "checking for socklen_t... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/socket.h>
int
main ()
{
socklen_t test;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  have_socklen_t=yes
else
  have_socklen_t=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext,

if test $have_socklen_t = yes; then

$as_echo "#define HAVE_SOCKLEN_T 1" >>confdefs.h

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for h_errno declaration in netdb.h" >&5
$as_echo_n "checking for h_errno declaration in netdb.h... " >&6; }
if ${ac_cv_decl_h_errno+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <netdb.h>
int
main ()
{
int err = h_errno;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_decl_h_errno=yes
else
  ac_cv_decl_h_errno=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_decl_h_errno" >&5
$as_echo "$ac_cv_decl_h_errno" >&6; }
if test $ac_cv_decl_h_errno = yes; then

$as_echo "#define H_ERRNO_DECLARED 1" >>confdefs.h

fi



saved_cppflags=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $EMU_THR_DEFS"

ac_header_dirent=no
for ac_hdr in dirent.h sys/ndir.h sys/dir.h ndir.h; do
  as_ac_Header=`$as_echo "ac_cv_header_dirent_$ac_hdr" | $as_tr_sh`
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_hdr that defines DIR" >&5
$as_echo_n "checking for $ac_hdr that defines DIR... " >&6; }
if eval \${$as_ac_Header+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <$ac_hdr>

int
main ()
{
if ((DIR *) 0)
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "$as_ac_Header=yes"
else
  eval "$as_ac_Header=no"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
eval ac_res=\$$as_ac_Header
	       { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
$as_echo "$ac_res" >&6; }
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_hdr" | $as_tr_cpp` 1
_ACEOF

ac_header_dirent=$ac_hdr; break
fi

done
# Two versions of opendir et al. are in -ldir and -lx on SCO Xenix.
if test $ac_header_dirent = dirent.h; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing opendir" >&5
$as_echo_n "checking for library containing opendir... " >&6; }
if ${ac_cv_search_opendir+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char opendir ();
int
main ()
{
return opendir ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' dir; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_opendir=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_opendir+:} false; then :
  break
fi
done
if ${ac_cv_search_opendir+:} false; then :

else
  ac_cv_search_opendir=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
$as_echo "$ac_cv_search_opendir" >&6; }
ac_res=$ac_cv_search_opendir
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

fi

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing opendir" >&5
$as_echo_n "checking for library containing opendir... " >&6; }
if ${ac_cv_search_opendir+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char opendir ();
int
main ()
{
return opendir ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' x; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_opendir=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_opendir+:} false; then :
  break
fi
done
if ${ac_cv_search_opendir+:} false; then :

else
  ac_cv_search_opendir=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_opendir" >&5
$as_echo "$ac_cv_search_opendir" >&6; }
ac_res=$ac_cv_search_opendir
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

fi

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
$as_echo_n "checking for ANSI C header files... " >&6; }
if ${ac_cv_header_stdc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <float.h>

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_header_stdc=yes
else
  ac_cv_header_stdc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ac_cv_header_stdc = yes; then
  # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <string.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "memchr" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "free" >/dev/null 2>&1; then :

else
  ac_cv_header_stdc=no
fi
rm -f conftest*

fi

if test $ac_cv_header_stdc = yes; then
  # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
  if test "$cross_compiling" = yes; then :
  :
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <ctype.h>
#include <stdlib.h>
#if ((' ' & 0x0FF) == 0x020)
# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
#else
# define ISLOWER(c) \
		   (('a' <= (c) && (c) <= 'i') \
		     || ('j' <= (c) && (c) <= 'r') \
		     || ('s' <= (c) && (c) <= 'z'))
# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
#endif

#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
int
main ()
{
  int i;
  for (i = 0; i < 256; i++)
    if (XOR (islower (i), ISLOWER (i))
	|| toupper (i) != TOUPPER (i))
      return 2;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :

else
  ac_cv_header_stdc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
$as_echo "$ac_cv_header_stdc" >&6; }
if test $ac_cv_header_stdc = yes; then

$as_echo "#define STDC_HEADERS 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sys/wait.h that is POSIX.1 compatible" >&5
$as_echo_n "checking for sys/wait.h that is POSIX.1 compatible... " >&6; }
if ${ac_cv_header_sys_wait_h+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/wait.h>
#ifndef WEXITSTATUS
# define WEXITSTATUS(stat_val) ((unsigned int) (stat_val) >> 8)
#endif
#ifndef WIFEXITED
# define WIFEXITED(stat_val) (((stat_val) & 255) == 0)
#endif

int
main ()
{
  int s;
  wait (&s);
  s = WIFEXITED (s) ? WEXITSTATUS (s) : 1;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_header_sys_wait_h=yes
else
  ac_cv_header_sys_wait_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_sys_wait_h" >&5
$as_echo "$ac_cv_header_sys_wait_h" >&6; }
if test $ac_cv_header_sys_wait_h = yes; then

$as_echo "#define HAVE_SYS_WAIT_H 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether time.h and sys/time.h may both be included" >&5
$as_echo_n "checking whether time.h and sys/time.h may both be included... " >&6; }
if ${ac_cv_header_time+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/time.h>
#include <time.h>

int
main ()
{
if ((struct tm *) 0)
return 0;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_header_time=yes
else
  ac_cv_header_time=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_time" >&5
$as_echo "$ac_cv_header_time" >&6; }
if test $ac_cv_header_time = yes; then

$as_echo "#define TIME_WITH_SYS_TIME 1" >>confdefs.h

fi


for ac_header in fcntl.h limits.h unistd.h syslog.h dlfcn.h ieeefp.h \
                 sys/types.h sys/stropts.h sys/sysctl.h \
                 sys/ioctl.h sys/time.h sys/uio.h sys/mman.h \
                 sys/socket.h sys/sockio.h sys/socketio.h \
                 net/errno.h malloc.h arpa/nameser.h libdlpi.h \
		 pty.h util.h libutil.h utmp.h langinfo.h poll.h sdkddkver.h \
                 elf.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done


ac_fn_c_check_member "$LINENO" "struct ifreq" "ifr_hwaddr" "ac_cv_member_struct_ifreq_ifr_hwaddr" "#ifdef __WIN32__
	 #else
	 #include <net/if.h>
	 #endif

"
if test "x$ac_cv_member_struct_ifreq_ifr_hwaddr" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_IFREQ_IFR_HWADDR 1
_ACEOF


fi


ac_fn_c_check_member "$LINENO" "struct ifreq" "ifr_enaddr" "ac_cv_member_struct_ifreq_ifr_enaddr" "#ifdef __WIN32__
	 #else
	 #include <net/if.h>
	 #endif

"
if test "x$ac_cv_member_struct_ifreq_ifr_enaddr" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_IFREQ_IFR_ENADDR 1
_ACEOF


fi


if test x"$enable_systemd" != x"no"; then

systemd_daemon_save_LIBS=$LIBS
LIBS=
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sd_listen_fds" >&5
$as_echo_n "checking for library containing sd_listen_fds... " >&6; }
if ${ac_cv_search_sd_listen_fds+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char sd_listen_fds ();
int
main ()
{
return sd_listen_fds ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' systemd systemd-daemon; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib $systemd_daemon_save_LIBS $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_sd_listen_fds=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_sd_listen_fds+:} false; then :
  break
fi
done
if ${ac_cv_search_sd_listen_fds+:} false; then :

else
  ac_cv_search_sd_listen_fds=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sd_listen_fds" >&5
$as_echo "$ac_cv_search_sd_listen_fds" >&6; }
ac_res=$ac_cv_search_sd_listen_fds
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  have_sd_listen_fds=yes
else
  have_sd_listen_fds=no
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sd_notify" >&5
$as_echo_n "checking for library containing sd_notify... " >&6; }
if ${ac_cv_search_sd_notify+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char sd_notify ();
int
main ()
{
return sd_notify ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' systemd systemd-daemon; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib $systemd_daemon_save_LIBS $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_sd_notify=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_sd_notify+:} false; then :
  break
fi
done
if ${ac_cv_search_sd_notify+:} false; then :

else
  ac_cv_search_sd_notify=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sd_notify" >&5
$as_echo "$ac_cv_search_sd_notify" >&6; }
ac_res=$ac_cv_search_sd_notify
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
  have_sd_notify=yes
else
  have_sd_notify=no
fi

for ac_header in systemd/sd-daemon.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "systemd/sd-daemon.h" "ac_cv_header_systemd_sd_daemon_h" "$ac_includes_default"
if test "x$ac_cv_header_systemd_sd_daemon_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYSTEMD_SD_DAEMON_H 1
_ACEOF
 have_systemd_sd_daemon_h=yes
else
  have_systemd_sd_daemon_h=no
fi

done


if test x"$have_sd_listen_fds" = x"yes" && \
   test x"$have_sd_notify" = x"yes" && \
   test x"$have_systemd_sd_daemon_h" = x"yes"; then

$as_echo "#define HAVE_SYSTEMD_DAEMON 1" >>confdefs.h

  SYSTEMD_DAEMON_LIBS=$LIBS
elif test x"$enable_systemd" = x"yes"; then
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "--enable-systemd was given, but test for systemd failed
See \`config.log' for more details" "$LINENO" 5; }
fi
LIBS=$systemd_daemon_save_LIBS
fi



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlpi_open in -ldlpi" >&5
$as_echo_n "checking for dlpi_open in -ldlpi... " >&6; }
if ${ac_cv_lib_dlpi_dlpi_open+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldlpi  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlpi_open ();
int
main ()
{
return dlpi_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dlpi_dlpi_open=yes
else
  ac_cv_lib_dlpi_dlpi_open=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dlpi_dlpi_open" >&5
$as_echo "$ac_cv_lib_dlpi_dlpi_open" >&6; }
if test "x$ac_cv_lib_dlpi_dlpi_open" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBDLPI 1
_ACEOF

  LIBS="-ldlpi $LIBS"

fi

if test x"$ac_cv_lib_dlpi_dlpi_open" = x"no"; then
   unset -v ac_cv_lib_dlpi_dlpi_open
            save_ldflags="$LDFLAGS"
   try_dlpi_lib=/lib
   if test x"$ac_cv_sizeof_void_p" = x"8"; then
      if test -d /lib64; then
	 try_dlpi_lib=/lib64
      elif test -d /lib/64; then
	 try_dlpi_lib=/lib/64
      fi
   fi
   if test ! -f "$try_dlpi_lib/libdlpi.so" && \
      test -f "$try_dlpi_lib/libdlpi.so.1"
   then
                              as_fn_error $? "Your OS installation is missing a symbolic link.
	Maybe it lacks some development package(s)...
	It can anyhow be fixed with the following command:
	# ln -s libdlpi.so.1 $try_dlpi_lib/libdlpi.so
	" "$LINENO" 5
   fi
   LDFLAGS="-L$try_dlpi_lib -R$try_dlpi_lib $LDFLAGS"
   unset -v try_dlpi_lib
   { $as_echo "$as_me:${as_lineno-$LINENO}: Extending the search to include /lib" >&5
$as_echo "$as_me: Extending the search to include /lib" >&6;}
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlpi_open in -ldlpi" >&5
$as_echo_n "checking for dlpi_open in -ldlpi... " >&6; }
if ${ac_cv_lib_dlpi_dlpi_open+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-ldlpi  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char dlpi_open ();
int
main ()
{
return dlpi_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_dlpi_dlpi_open=yes
else
  ac_cv_lib_dlpi_dlpi_open=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dlpi_dlpi_open" >&5
$as_echo "$ac_cv_lib_dlpi_dlpi_open" >&6; }
if test "x$ac_cv_lib_dlpi_dlpi_open" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBDLPI 1
_ACEOF

  LIBS="-ldlpi $LIBS"

fi

   if test x"$ac_cv_lib_dlpi_dlpi_open" = x"no"; then
      LDFLAGS="$save_ldflags"
   fi
   unset -v save_ldflags
fi

ac_fn_c_check_header_mongrel "$LINENO" "sys/resource.h" "ac_cv_header_sys_resource_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_resource_h" = xyes; then :

$as_echo "#define HAVE_SYS_RESOURCE_H 1" >>confdefs.h

	 ac_fn_c_check_decl "$LINENO" "getrlimit" "ac_cv_have_decl_getrlimit" "#include <sys/resource.h>
"
if test "x$ac_cv_have_decl_getrlimit" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_GETRLIMIT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "setrlimit" "ac_cv_have_decl_setrlimit" "#include <sys/resource.h>
"
if test "x$ac_cv_have_decl_setrlimit" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SETRLIMIT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "RLIMIT_STACK" "ac_cv_have_decl_RLIMIT_STACK" "#include <sys/resource.h>
"
if test "x$ac_cv_have_decl_RLIMIT_STACK" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_RLIMIT_STACK $ac_have_decl
_ACEOF

fi



for ac_func in getrusage
do :
  ac_fn_c_check_func "$LINENO" "getrusage" "ac_cv_func_getrusage"
if test "x$ac_cv_func_getrusage" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GETRUSAGE 1
_ACEOF

fi
done


have_kernel_poll=no
ac_fn_c_check_header_mongrel "$LINENO" "sys/event.h" "ac_cv_header_sys_event_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_event_h" = xyes; then :
  have_kernel_poll=kqueue
fi


ac_fn_c_check_header_mongrel "$LINENO" "sys/epoll.h" "ac_cv_header_sys_epoll_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_epoll_h" = xyes; then :
  have_kernel_poll=epoll
fi


ac_fn_c_check_header_mongrel "$LINENO" "sys/devpoll.h" "ac_cv_header_sys_devpoll_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_devpoll_h" = xyes; then :
  have_kernel_poll=/dev/poll
fi



for ac_header in sys/timerfd.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/timerfd.h" "ac_cv_header_sys_timerfd_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_timerfd_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_TIMERFD_H 1
_ACEOF

fi

done


for ac_header in netpacket/packet.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "netpacket/packet.h" "ac_cv_header_netpacket_packet_h" "$ac_includes_default"
if test "x$ac_cv_header_netpacket_packet_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_NETPACKET_PACKET_H 1
_ACEOF
 have_netpacket_packet_h=yes
else
  have_netpacket_packet_h=no
fi

done



if test "x$enable_sctp" != "xno" ; then
    ac_fn_c_check_header_compile "$LINENO" "netinet/sctp.h" "ac_cv_header_netinet_sctp_h" "#if HAVE_SYS_SOCKET_H
	 #include <sys/socket.h>
	 #endif

"
if test "x$ac_cv_header_netinet_sctp_h" = xyes; then :
  LIBSCTP=libsctp.so.1

$as_echo "#define HAVE_SCTP_H 1" >>confdefs.h

fi


fi

case "x$enable_sctp" in
     xno|x)
	;;
     *)
	if test "x$LIBSCTP" = "x" ; then
	   as_fn_error $? "sctp support requested, but cannot be enabled since 'netinet/sctp.h' is missing" "$LINENO" 5
	fi;;
esac

if test x"$ac_cv_header_netinet_sctp_h" = x"yes"; then
    if test "x$enable_sctp" = "xlib"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for sctp_bindx in -lsctp" >&5
$as_echo_n "checking for sctp_bindx in -lsctp... " >&6; }
if ${ac_cv_lib_sctp_sctp_bindx+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lsctp  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char sctp_bindx ();
int
main ()
{
return sctp_bindx ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_sctp_sctp_bindx=yes
else
  ac_cv_lib_sctp_sctp_bindx=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_sctp_sctp_bindx" >&5
$as_echo "$ac_cv_lib_sctp_sctp_bindx" >&6; }
if test "x$ac_cv_lib_sctp_sctp_bindx" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LIBSCTP 1
_ACEOF

  LIBS="-lsctp $LIBS"

fi

fi
    for ac_func in sctp_bindx sctp_peeloff sctp_getladdrs sctp_freeladdrs sctp_getpaddrs sctp_freepaddrs
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

        ac_fn_c_check_member "$LINENO" "struct sctp_accoc_value" "assoc_id" "ac_cv_member_struct_sctp_accoc_value_assoc_id" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_accoc_value_assoc_id" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_ACCOC_VALUE_ASSOC_ID 1
_ACEOF


fi

    ac_fn_c_check_decl "$LINENO" "SCTP_UNORDERED" "ac_cv_have_decl_SCTP_UNORDERED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_UNORDERED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_UNORDERED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_ADDR_OVER" "ac_cv_have_decl_SCTP_ADDR_OVER" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_ADDR_OVER" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_ADDR_OVER $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_ABORT" "ac_cv_have_decl_SCTP_ABORT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_ABORT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_ABORT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_EOF" "ac_cv_have_decl_SCTP_EOF" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_EOF" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_EOF $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_SENDALL" "ac_cv_have_decl_SCTP_SENDALL" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_SENDALL" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_SENDALL $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_ADDR_CONFIRMED" "ac_cv_have_decl_SCTP_ADDR_CONFIRMED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_ADDR_CONFIRMED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_ADDR_CONFIRMED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_DELAYED_ACK_TIME" "ac_cv_have_decl_SCTP_DELAYED_ACK_TIME" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_DELAYED_ACK_TIME" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_DELAYED_ACK_TIME $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_EMPTY" "ac_cv_have_decl_SCTP_EMPTY" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_EMPTY" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_EMPTY $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_UNCONFIRMED" "ac_cv_have_decl_SCTP_UNCONFIRMED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_UNCONFIRMED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_UNCONFIRMED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_CLOSED" "ac_cv_have_decl_SCTP_CLOSED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_CLOSED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_CLOSED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_IDLE" "ac_cv_have_decl_SCTPS_IDLE" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_IDLE" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_IDLE $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_BOUND" "ac_cv_have_decl_SCTP_BOUND" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_BOUND" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_BOUND $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_BOUND" "ac_cv_have_decl_SCTPS_BOUND" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_BOUND" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_BOUND $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_LISTEN" "ac_cv_have_decl_SCTP_LISTEN" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_LISTEN" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_LISTEN $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_LISTEN" "ac_cv_have_decl_SCTPS_LISTEN" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_LISTEN" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_LISTEN $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_COOKIE_WAIT" "ac_cv_have_decl_SCTP_COOKIE_WAIT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_COOKIE_WAIT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_COOKIE_WAIT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_COOKIE_WAIT" "ac_cv_have_decl_SCTPS_COOKIE_WAIT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_COOKIE_WAIT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_COOKIE_WAIT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_COOKIE_ECHOED" "ac_cv_have_decl_SCTP_COOKIE_ECHOED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_COOKIE_ECHOED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_COOKIE_ECHOED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_COOKIE_ECHOED" "ac_cv_have_decl_SCTPS_COOKIE_ECHOED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_COOKIE_ECHOED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_COOKIE_ECHOED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_ESTABLISHED" "ac_cv_have_decl_SCTP_ESTABLISHED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_ESTABLISHED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_ESTABLISHED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_ESTABLISHED" "ac_cv_have_decl_SCTPS_ESTABLISHED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_ESTABLISHED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_ESTABLISHED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_SHUTDOWN_PENDING" "ac_cv_have_decl_SCTP_SHUTDOWN_PENDING" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_SHUTDOWN_PENDING" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_SHUTDOWN_PENDING $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_SHUTDOWN_PENDING" "ac_cv_have_decl_SCTPS_SHUTDOWN_PENDING" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_SHUTDOWN_PENDING" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_SHUTDOWN_PENDING $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_SHUTDOWN_SENT" "ac_cv_have_decl_SCTP_SHUTDOWN_SENT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_SHUTDOWN_SENT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_SHUTDOWN_SENT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_SHUTDOWN_SENT" "ac_cv_have_decl_SCTPS_SHUTDOWN_SENT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_SHUTDOWN_SENT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_SHUTDOWN_SENT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_SHUTDOWN_RECEIVED" "ac_cv_have_decl_SCTP_SHUTDOWN_RECEIVED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_SHUTDOWN_RECEIVED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_SHUTDOWN_RECEIVED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_SHUTDOWN_RECEIVED" "ac_cv_have_decl_SCTPS_SHUTDOWN_RECEIVED" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_SHUTDOWN_RECEIVED" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_SHUTDOWN_RECEIVED $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTP_SHUTDOWN_ACK_SENT" "ac_cv_have_decl_SCTP_SHUTDOWN_ACK_SENT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTP_SHUTDOWN_ACK_SENT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTP_SHUTDOWN_ACK_SENT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "SCTPS_SHUTDOWN_ACK_SENT" "ac_cv_have_decl_SCTPS_SHUTDOWN_ACK_SENT" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_have_decl_SCTPS_SHUTDOWN_ACK_SENT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_SCTPS_SHUTDOWN_ACK_SENT $ac_have_decl
_ACEOF

    ac_fn_c_check_member "$LINENO" "struct sctp_paddrparams" "spp_pathmtu" "ac_cv_member_struct_sctp_paddrparams_spp_pathmtu" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_paddrparams_spp_pathmtu" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_PATHMTU 1
_ACEOF


fi
ac_fn_c_check_member "$LINENO" "struct sctp_paddrparams" "spp_sackdelay" "ac_cv_member_struct_sctp_paddrparams_spp_sackdelay" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_paddrparams_spp_sackdelay" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_SACKDELAY 1
_ACEOF


fi
ac_fn_c_check_member "$LINENO" "struct sctp_paddrparams" "spp_flags" "ac_cv_member_struct_sctp_paddrparams_spp_flags" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_paddrparams_spp_flags" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_PADDRPARAMS_SPP_FLAGS 1
_ACEOF


fi
ac_fn_c_check_member "$LINENO" "struct sctp_remote_error" "sre_data" "ac_cv_member_struct_sctp_remote_error_sre_data" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_remote_error_sre_data" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_REMOTE_ERROR_SRE_DATA 1
_ACEOF


fi
ac_fn_c_check_member "$LINENO" "struct sctp_send_failed" "ssf_data" "ac_cv_member_struct_sctp_send_failed_ssf_data" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_send_failed_ssf_data" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_SEND_FAILED_SSF_DATA 1
_ACEOF


fi
ac_fn_c_check_member "$LINENO" "struct sctp_event_subscribe" "sctp_authentication_event" "ac_cv_member_struct_sctp_event_subscribe_sctp_authentication_event" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_event_subscribe_sctp_authentication_event" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_EVENT_SUBSCRIBE_SCTP_AUTHENTICATION_EVENT 1
_ACEOF


fi
ac_fn_c_check_member "$LINENO" "struct sctp_event_subscribe" "sctp_sender_dry_event" "ac_cv_member_struct_sctp_event_subscribe_sctp_sender_dry_event" "#if HAVE_SYS_SOCKET_H
         #include <sys/socket.h>
         #endif
         #include <netinet/sctp.h>

"
if test "x$ac_cv_member_struct_sctp_event_subscribe_sctp_sender_dry_event" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SCTP_EVENT_SUBSCRIBE_SCTP_SENDER_DRY_EVENT 1
_ACEOF


fi

fi

for ac_header in sched.h setns.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done

for ac_func in setns
do :
  ac_fn_c_check_func "$LINENO" "setns" "ac_cv_func_setns"
if test "x$ac_cv_func_setns" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SETNS 1
_ACEOF

fi
done


for ac_header in linux/types.h linux/errqueue.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "#ifdef HAVE_SYS_TIME_H
# include <sys/time.h>
#endif
#ifdef HAVE_LINUX_TYPES_H
# include <linux/types.h>
#endif

"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done


HAVE_VALGRIND=no
ac_fn_c_check_header_mongrel "$LINENO" "valgrind/valgrind.h" "ac_cv_header_valgrind_valgrind_h" "$ac_includes_default"
if test "x$ac_cv_header_valgrind_valgrind_h" = xyes; then :
  HAVE_VALGRIND=yes
fi




{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SO_BSDCOMPAT declaration" >&5
$as_echo_n "checking for SO_BSDCOMPAT declaration... " >&6; }
if ${ac_cv_decl_so_bsdcompat+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/socket.h>
int
main ()
{
int i = SO_BSDCOMPAT;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_decl_so_bsdcompat=yes
else
  ac_cv_decl_so_bsdcompat=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_decl_so_bsdcompat" >&5
$as_echo "$ac_cv_decl_so_bsdcompat" >&6; }

case "${ac_cv_decl_so_bsdcompat}" in
  "yes" )
$as_echo "#define HAVE_SO_BSDCOMPAT /**/" >>confdefs.h
 ;;
  * ) ;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for INADDR_LOOPBACK in netinet/in.h" >&5
$as_echo_n "checking for INADDR_LOOPBACK in netinet/in.h... " >&6; }
if ${ac_cv_decl_inaddr_loopback+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <netinet/in.h>
int
main ()
{
int i = INADDR_LOOPBACK;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_decl_inaddr_loopback=yes
else
  ac_cv_decl_inaddr_loopback=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_decl_inaddr_loopback" >&5
$as_echo "$ac_cv_decl_inaddr_loopback" >&6; }

if test ${ac_cv_decl_inaddr_loopback} = no; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for INADDR_LOOPBACK in rpc/types.h" >&5
$as_echo_n "checking for INADDR_LOOPBACK in rpc/types.h... " >&6; }
if ${ac_cv_decl_inaddr_loopback_rpc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <rpc/types.h>
int
main ()
{
int i = INADDR_LOOPBACK;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_decl_inaddr_loopback_rpc=yes
else
  ac_cv_decl_inaddr_loopback_rpc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_decl_inaddr_loopback_rpc" >&5
$as_echo "$ac_cv_decl_inaddr_loopback_rpc" >&6; }

   case "${ac_cv_decl_inaddr_loopback_rpc}" in
     "yes" )

$as_echo "#define DEF_INADDR_LOOPBACK_IN_RPC_TYPES_H /**/" >>confdefs.h
 ;;
      * )
  	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for INADDR_LOOPBACK in winsock2.h" >&5
$as_echo_n "checking for INADDR_LOOPBACK in winsock2.h... " >&6; }
if ${ac_cv_decl_inaddr_loopback_winsock2+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#define WIN32_LEAN_AND_MEAN
				   #include <winsock2.h>
int
main ()
{
int i = INADDR_LOOPBACK;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_decl_inaddr_loopback_winsock2=yes
else
  ac_cv_decl_inaddr_loopback_winsock2=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_decl_inaddr_loopback_winsock2" >&5
$as_echo "$ac_cv_decl_inaddr_loopback_winsock2" >&6; }
	case "${ac_cv_decl_inaddr_loopback_winsock2}" in
     		"yes" )

$as_echo "#define DEF_INADDR_LOOPBACK_IN_WINSOCK2_H /**/" >>confdefs.h
 ;;
		* )
			# couldn't find it anywhere

$as_echo "#define HAVE_NO_INADDR_LOOPBACK /**/" >>confdefs.h
 ;;
	esac;;
   esac
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sys_errlist declaration in stdio.h or errno.h" >&5
$as_echo_n "checking for sys_errlist declaration in stdio.h or errno.h... " >&6; }
if ${ac_cv_decl_sys_errlist+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>
#include <errno.h>
int
main ()
{
char *msg = *(sys_errlist + 1);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_decl_sys_errlist=yes
else
  ac_cv_decl_sys_errlist=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_decl_sys_errlist" >&5
$as_echo "$ac_cv_decl_sys_errlist" >&6; }
if test $ac_cv_decl_sys_errlist = yes; then

$as_echo "#define SYS_ERRLIST_DECLARED /**/" >>confdefs.h

fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if windows.h includes winsock2.h" >&5
$as_echo_n "checking if windows.h includes winsock2.h... " >&6; }
if ${erts_cv_windows_h_includes_winsock2_h+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <windows.h>

int
main ()
{
#ifndef _WINSOCK2API_
				#error winsock2.h not included
				#endif
				int i = 1;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erts_cv_windows_h_includes_winsock2_h=yes
else
  erts_cv_windows_h_includes_winsock2_h=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_windows_h_includes_winsock2_h" >&5
$as_echo "$erts_cv_windows_h_includes_winsock2_h" >&6; }
if test $erts_cv_windows_h_includes_winsock2_h = yes; then

$as_echo "#define WINDOWS_H_INCLUDES_WINSOCK2_H 1" >>confdefs.h

fi

CPPFLAGS=$saved_cppflags


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for an ANSI C-conforming const" >&5
$as_echo_n "checking for an ANSI C-conforming const... " >&6; }
if ${ac_cv_c_const+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

#ifndef __cplusplus
  /* Ultrix mips cc rejects this sort of thing.  */
  typedef int charset[2];
  const charset cs = { 0, 0 };
  /* SunOS 4.1.1 cc rejects this.  */
  char const *const *pcpcc;
  char **ppc;
  /* NEC SVR4.0.2 mips cc rejects this.  */
  struct point {int x, y;};
  static struct point const zero = {0,0};
  /* AIX XL C 1.02.0.0 rejects this.
     It does not let you subtract one const X* pointer from another in
     an arm of an if-expression whose if-part is not a constant
     expression */
  const char *g = "string";
  pcpcc = &g + (g ? g-g : 0);
  /* HPUX 7.0 cc rejects these. */
  ++pcpcc;
  ppc = (char**) pcpcc;
  pcpcc = (char const *const *) ppc;
  { /* SCO 3.2v4 cc rejects this sort of thing.  */
    char tx;
    char *t = &tx;
    char const *s = 0 ? (char *) 0 : (char const *) 0;

    *t++ = 0;
    if (s) return 0;
  }
  { /* Someone thinks the Sun supposedly-ANSI compiler will reject this.  */
    int x[] = {25, 17};
    const int *foo = &x[0];
    ++foo;
  }
  { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
    typedef const int *iptr;
    iptr p = 0;
    ++p;
  }
  { /* AIX XL C 1.02.0.0 rejects this sort of thing, saying
       "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
    struct s { int j; const int *ap[3]; } bx;
    struct s *b = &bx; b->j = 5;
  }
  { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
    const int foo = 10;
    if (!foo) return 0;
  }
  return !cs[0] && !zero.x;
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_c_const=yes
else
  ac_cv_c_const=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_const" >&5
$as_echo "$ac_cv_c_const" >&6; }
if test $ac_cv_c_const = no; then

$as_echo "#define const /**/" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking return type of signal handlers" >&5
$as_echo_n "checking return type of signal handlers... " >&6; }
if ${ac_cv_type_signal+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <signal.h>

int
main ()
{
return *(signal (0, 0)) (0) == 1;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_type_signal=int
else
  ac_cv_type_signal=void
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_type_signal" >&5
$as_echo "$ac_cv_type_signal" >&6; }

cat >>confdefs.h <<_ACEOF
#define RETSIGTYPE $ac_cv_type_signal
_ACEOF


ac_fn_c_check_type "$LINENO" "off_t" "ac_cv_type_off_t" "$ac_includes_default"
if test "x$ac_cv_type_off_t" = xyes; then :

else

cat >>confdefs.h <<_ACEOF
#define off_t long int
_ACEOF

fi

ac_fn_c_check_type "$LINENO" "pid_t" "ac_cv_type_pid_t" "$ac_includes_default"
if test "x$ac_cv_type_pid_t" = xyes; then :

else

cat >>confdefs.h <<_ACEOF
#define pid_t int
_ACEOF

fi

ac_fn_c_check_type "$LINENO" "size_t" "ac_cv_type_size_t" "$ac_includes_default"
if test "x$ac_cv_type_size_t" = xyes; then :

else

cat >>confdefs.h <<_ACEOF
#define size_t unsigned int
_ACEOF

fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether struct tm is in sys/time.h or time.h" >&5
$as_echo_n "checking whether struct tm is in sys/time.h or time.h... " >&6; }
if ${ac_cv_struct_tm+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <time.h>

int
main ()
{
struct tm tm;
				     int *p = &tm.tm_sec;
				     return !p;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_struct_tm=time.h
else
  ac_cv_struct_tm=sys/time.h
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_struct_tm" >&5
$as_echo "$ac_cv_struct_tm" >&6; }
if test $ac_cv_struct_tm = sys/time.h; then

$as_echo "#define TM_IN_SYS_TIME 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether struct sockaddr has sa_len field" >&5
$as_echo_n "checking whether struct sockaddr has sa_len field... " >&6; }
if ${ac_cv_struct_sockaddr_sa_len+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/socket.h>
int
main ()
{
struct sockaddr s; s.sa_len = 10;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_struct_sockaddr_sa_len=yes
else
  ac_cv_struct_sockaddr_sa_len=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_struct_sockaddr_sa_len" >&5
$as_echo "$ac_cv_struct_sockaddr_sa_len" >&6; }

case ${ac_cv_struct_sockaddr_sa_len} in
  "no" )
$as_echo "#define NO_SA_LEN 1" >>confdefs.h
 ;;
  *) ;;
esac


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of char" >&5
$as_echo_n "checking size of char... " >&6; }
if ${ac_cv_sizeof_char+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (char))" "ac_cv_sizeof_char"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_char" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (char)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_char=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_char" >&5
$as_echo "$ac_cv_sizeof_char" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_CHAR $ac_cv_sizeof_char
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of short" >&5
$as_echo_n "checking size of short... " >&6; }
if ${ac_cv_sizeof_short+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (short))" "ac_cv_sizeof_short"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_short" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (short)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_short=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_short" >&5
$as_echo "$ac_cv_sizeof_short" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_SHORT $ac_cv_sizeof_short
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of int" >&5
$as_echo_n "checking size of int... " >&6; }
if ${ac_cv_sizeof_int+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (int))" "ac_cv_sizeof_int"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_int" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (int)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_int=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_int" >&5
$as_echo "$ac_cv_sizeof_int" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_INT $ac_cv_sizeof_int
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long" >&5
$as_echo_n "checking size of long... " >&6; }
if ${ac_cv_sizeof_long+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long))" "ac_cv_sizeof_long"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_long" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long" >&5
$as_echo "$ac_cv_sizeof_long" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG $ac_cv_sizeof_long
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of void *" >&5
$as_echo_n "checking size of void *... " >&6; }
if ${ac_cv_sizeof_void_p+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (void *))" "ac_cv_sizeof_void_p"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_void_p" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (void *)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_void_p=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_void_p" >&5
$as_echo "$ac_cv_sizeof_void_p" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_VOID_P $ac_cv_sizeof_void_p
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of long long" >&5
$as_echo_n "checking size of long long... " >&6; }
if ${ac_cv_sizeof_long_long+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (long long))" "ac_cv_sizeof_long_long"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_long_long" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (long long)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_long_long=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_long_long" >&5
$as_echo "$ac_cv_sizeof_long_long" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_LONG_LONG $ac_cv_sizeof_long_long
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of size_t" >&5
$as_echo_n "checking size of size_t... " >&6; }
if ${ac_cv_sizeof_size_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (size_t))" "ac_cv_sizeof_size_t"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_size_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (size_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_size_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_size_t" >&5
$as_echo "$ac_cv_sizeof_size_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_SIZE_T $ac_cv_sizeof_size_t
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of off_t" >&5
$as_echo_n "checking size of off_t... " >&6; }
if ${ac_cv_sizeof_off_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (off_t))" "ac_cv_sizeof_off_t"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_off_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (off_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_off_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_off_t" >&5
$as_echo "$ac_cv_sizeof_off_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_OFF_T $ac_cv_sizeof_off_t
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of time_t" >&5
$as_echo_n "checking size of time_t... " >&6; }
if ${ac_cv_sizeof_time_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (time_t))" "ac_cv_sizeof_time_t"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_time_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (time_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_time_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_time_t" >&5
$as_echo "$ac_cv_sizeof_time_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_TIME_T $ac_cv_sizeof_time_t
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of suseconds_t" >&5
$as_echo_n "checking size of suseconds_t... " >&6; }
if ${ac_cv_sizeof_suseconds_t+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (suseconds_t))" "ac_cv_sizeof_suseconds_t"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type_suseconds_t" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (suseconds_t)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof_suseconds_t=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof_suseconds_t" >&5
$as_echo "$ac_cv_sizeof_suseconds_t" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF_SUSECONDS_T $ac_cv_sizeof_suseconds_t
_ACEOF


# The cast to long int works around a bug in the HP C Compiler
# version HP92453-01 B.11.11.23709.GP, which incorrectly rejects
# declarations like `int a3[[(sizeof (unsigned char)) >= 0]];'.
# This bug is HP SR number 8606223364.
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking size of _Float16" >&5
$as_echo_n "checking size of _Float16... " >&6; }
if ${ac_cv_sizeof__Float16+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if ac_fn_c_compute_int "$LINENO" "(long int) (sizeof (_Float16))" "ac_cv_sizeof__Float16"        "$ac_includes_default"; then :

else
  if test "$ac_cv_type__Float16" = yes; then
     { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error 77 "cannot compute sizeof (_Float16)
See \`config.log' for more details" "$LINENO" 5; }
   else
     ac_cv_sizeof__Float16=0
   fi
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sizeof__Float16" >&5
$as_echo "$ac_cv_sizeof__Float16" >&6; }



cat >>confdefs.h <<_ACEOF
#define SIZEOF__FLOAT16 $ac_cv_sizeof__Float16
_ACEOF



BITS64=

if test $ac_cv_sizeof_void_p = 8; then
  BITS64=yes
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler 'restrict' support" >&5
$as_echo_n "checking for C compiler 'restrict' support... " >&6; }
restrict_keyword=""
for x in restrict __restrict; do
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
int * $x foo(int * $x arg);
		    int * $x foo(int * $x arg)
		        { int * $x var=arg; return var;}

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  restrict_keyword=$x
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    if test "x$restrict_keyword" != "x"; then
	break
    fi
done

cat >>confdefs.h <<_ACEOF
#define ERTS_RESTRICT $restrict_keyword
_ACEOF

if test "x$restrict_keyword" != "x"; then
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

if test "x$ac_compiler_gnu" = "xyes"; then
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we should add -fno-tree-copyrename to CFLAGS for computed gotos to work properly" >&5
$as_echo_n "checking if we should add -fno-tree-copyrename to CFLAGS for computed gotos to work properly... " >&6; }
## tree-copyrename was broken in gcc 4.3 and then removed in gcc 6
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

		#if (__GNUC__ > 4 && __GNUC__ < 6)  || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3)
			;
			#else
			#error old and ok
			#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  no_tree_copyrename=yes
else
  no_tree_copyrename=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test "x$no_tree_copyrename" = "xyes"; then
	CFLAGS="$CFLAGS -fno-tree-copyrename"
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for broken gcc-4.3.0 compiler" >&5
$as_echo_n "checking for broken gcc-4.3.0 compiler... " >&6; }
if test "$cross_compiling" = yes; then :
  gcc_4_3_0_bug=cross
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* pr36339.c */
extern void abort (void);

typedef unsigned long my_uintptr_t;

int check_a(my_uintptr_t tagged_ptr);

int __attribute__((noinline)) try_a(my_uintptr_t x)
{
  my_uintptr_t heap[2];
  my_uintptr_t *hp = heap;

  hp[0] = x;
  hp[1] = 0;
  return check_a((my_uintptr_t)(void*)((char*)hp + 1));
}

int __attribute__((noinline)) check_a(my_uintptr_t tagged_ptr)
{
  my_uintptr_t *hp = (my_uintptr_t*)(void*)((char*)tagged_ptr - 1);

  if (hp[0] == 42 && hp[1] == 0)
    return 0;
  return -1;
}

int main(void)
{
  if (try_a(42) < 0)
    abort ();
  return 0;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  gcc_4_3_0_bug=no
else
  gcc_4_3_0_bug=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


case $gcc_4_3_0_bug in
	yes|no)
		gcc_4_3_0_bug_result=$gcc_4_3_0_bug;;
	cross)
		gcc_dumped_vsn=`$CC -dumpversion 2>/dev/null`
		case gcc-$gcc_dumped_vsn in
			gcc-4.3.0) gcc_4_3_0_bug=yes;;
			*) gcc_4_3_0_bug=no;;
		esac
		gcc_4_3_0_bug_result="$gcc_4_3_0_bug; could not run test since cross compiling, checked version number ($gcc_dumped_vsn) instead";;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_4_3_0_bug_result" >&5
$as_echo "$gcc_4_3_0_bug_result" >&6; }
if test $gcc_4_3_0_bug = yes; then
	as_fn_error $? "This gcc miscompiles the Erlang runtime system; please use a different version" "$LINENO" 5
fi

fi

case X$erl_xcomp_bigendian in
    X) ;;
    Xyes|Xno) ac_cv_c_bigendian=$erl_xcomp_bigendian;;
    *) as_fn_error $? "Bad erl_xcomp_bigendian value: $erl_xcomp_bigendian" "$LINENO" 5;;
esac

 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether byte ordering is bigendian" >&5
$as_echo_n "checking whether byte ordering is bigendian... " >&6; }
if ${ac_cv_c_bigendian+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_cv_c_bigendian=unknown
    # See if we're dealing with a universal compiler.
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#ifndef __APPLE_CC__
	       not a universal capable compiler
	     #endif
	     typedef int dummy;

_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

	# Check for potential -arch flags.  It is not universal unless
	# there are at least two -arch flags with different values.
	ac_arch=
	ac_prev=
	for ac_word in $CC $CFLAGS $CPPFLAGS $LDFLAGS; do
	 if test -n "$ac_prev"; then
	   case $ac_word in
	     i?86 | x86_64 | ppc | ppc64)
	       if test -z "$ac_arch" || test "$ac_arch" = "$ac_word"; then
		 ac_arch=$ac_word
	       else
		 ac_cv_c_bigendian=universal
		 break
	       fi
	       ;;
	   esac
	   ac_prev=
	 elif test "x$ac_word" = "x-arch"; then
	   ac_prev=arch
	 fi
       done
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    if test $ac_cv_c_bigendian = unknown; then
      # See if sys/param.h defines the BYTE_ORDER macro.
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
	     #include <sys/param.h>

int
main ()
{
#if ! (defined BYTE_ORDER && defined BIG_ENDIAN \
		     && defined LITTLE_ENDIAN && BYTE_ORDER && BIG_ENDIAN \
		     && LITTLE_ENDIAN)
	      bogus endian macros
	     #endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  # It does; now see whether it defined to BIG_ENDIAN or not.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
		#include <sys/param.h>

int
main ()
{
#if BYTE_ORDER != BIG_ENDIAN
		 not big endian
		#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_c_bigendian=yes
else
  ac_cv_c_bigendian=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    fi
    if test $ac_cv_c_bigendian = unknown; then
      # See if <limits.h> defines _LITTLE_ENDIAN or _BIG_ENDIAN (e.g., Solaris).
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>

int
main ()
{
#if ! (defined _LITTLE_ENDIAN || defined _BIG_ENDIAN)
	      bogus endian macros
	     #endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  # It does; now see whether it defined to _BIG_ENDIAN or not.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <limits.h>

int
main ()
{
#ifndef _BIG_ENDIAN
		 not big endian
		#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_c_bigendian=yes
else
  ac_cv_c_bigendian=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    fi
    if test $ac_cv_c_bigendian = unknown; then
      # Compile a test program.
      if test "$cross_compiling" = yes; then :
  # Try to guess by grepping values from an object file.
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
short int ascii_mm[] =
		  { 0x4249, 0x4765, 0x6E44, 0x6961, 0x6E53, 0x7953, 0 };
		short int ascii_ii[] =
		  { 0x694C, 0x5454, 0x656C, 0x6E45, 0x6944, 0x6E61, 0 };
		int use_ascii (int i) {
		  return ascii_mm[i] + ascii_ii[i];
		}
		short int ebcdic_ii[] =
		  { 0x89D3, 0xE3E3, 0x8593, 0x95C5, 0x89C4, 0x9581, 0 };
		short int ebcdic_mm[] =
		  { 0xC2C9, 0xC785, 0x95C4, 0x8981, 0x95E2, 0xA8E2, 0 };
		int use_ebcdic (int i) {
		  return ebcdic_mm[i] + ebcdic_ii[i];
		}
		extern int foo;

int
main ()
{
return use_ascii (foo) == use_ebcdic (foo);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  if grep BIGenDianSyS conftest.$ac_objext >/dev/null; then
	      ac_cv_c_bigendian=yes
	    fi
	    if grep LiTTleEnDian conftest.$ac_objext >/dev/null ; then
	      if test "$ac_cv_c_bigendian" = unknown; then
		ac_cv_c_bigendian=no
	      else
		# finding both strings is unlikely to happen, but who knows?
		ac_cv_c_bigendian=unknown
	      fi
	    fi
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
$ac_includes_default
int
main ()
{

	     /* Are we little or big endian?  From Harbison&Steele.  */
	     union
	     {
	       long int l;
	       char c[sizeof (long int)];
	     } u;
	     u.l = 1;
	     return u.c[sizeof (long int) - 1] == 1;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  ac_cv_c_bigendian=no
else
  ac_cv_c_bigendian=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

    fi
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_bigendian" >&5
$as_echo "$ac_cv_c_bigendian" >&6; }
 case $ac_cv_c_bigendian in #(
   yes)


$as_echo "#define WORDS_BIGENDIAN 1" >>confdefs.h


$as_echo "#define ERTS_ENDIANNESS 1" >>confdefs.h

	;; #(
   no)


$as_echo "#define ERTS_ENDIANNESS -1" >>confdefs.h

	 ;; #(
   universal)

$as_echo "#define AC_APPLE_UNIVERSAL_BUILD 1" >>confdefs.h

     ;; #(
   *)

	  case "$erl_xcomp_bigendian" in
	    yes)

$as_echo "#define ERTS_ENDIANNESS 1" >>confdefs.h
;;
	    no)

$as_echo "#define ERTS_ENDIANNESS -1" >>confdefs.h
;;
	    *)

$as_echo "#define ERTS_ENDIANNESS 0" >>confdefs.h
;;
	  esac
	 ;;
 esac


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether double word ordering is middle-endian" >&5
$as_echo_n "checking whether double word ordering is middle-endian... " >&6; }
if ${ac_cv_c_double_middle_endian+:} false; then :
  $as_echo_n "(cached) " >&6
else
  # It does not; compile a test program.
if test "$cross_compiling" = yes; then :
  ac_cv_c_double_middle=unknown
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdlib.h>

int
main(void)
{
  int i = 0;
  int zero = 0;
  int bigendian;
  int zero_index = 0;

  union
  {
    long int l;
    char c[sizeof (long int)];
  } u;

  /* we'll use the one with 32-bit words */
  union
  {
    double d;
    unsigned int c[2];
  } vint;

  union
  {
    double d;
    unsigned long c[2];
  } vlong;

  union
  {
    double d;
    unsigned short c[2];
  } vshort;


  /* Are we little or big endian?  From Harbison&Steele.  */
  u.l = 1;
  bigendian = (u.c[sizeof (long int) - 1] == 1);

  zero_index = bigendian ? 1 : 0;

  vint.d = 1.0;
  vlong.d = 1.0;
  vshort.d = 1.0;

  if (sizeof(unsigned int) == 4)
    {
      if (vint.c[zero_index] != 0)
	zero = 1;
    }
  else if (sizeof(unsigned long) == 4)
    {
      if (vlong.c[zero_index] != 0)
	zero = 1;
    }
  else if (sizeof(unsigned short) == 4)
    {
      if (vshort.c[zero_index] != 0)
	zero = 1;
    }

  exit (zero);
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  ac_cv_c_double_middle_endian=no
else
  ac_cv_c_double_middle_endian=yes
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_double_middle_endian" >&5
$as_echo "$ac_cv_c_double_middle_endian" >&6; }
case $ac_cv_c_double_middle_endian in
  yes)

$as_echo "#define DOUBLE_MIDDLE_ENDIAN 1" >>confdefs.h
 ;;
  no)
     ;;
  *)
    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unknown double endianness
presetting ac_cv_c_double_middle_endian=no (or yes) will help" >&5
$as_echo "$as_me: WARNING: unknown double endianness
presetting ac_cv_c_double_middle_endian=no (or yes) will help" >&2;} ;;
esac


for ac_func in fdatasync
do :
  ac_fn_c_check_func "$LINENO" "fdatasync" "ac_cv_func_fdatasync"
if test "x$ac_cv_func_fdatasync" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_FDATASYNC 1
_ACEOF

fi
done


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing fdatasync" >&5
$as_echo_n "checking for library containing fdatasync... " >&6; }
if ${ac_cv_search_fdatasync+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char fdatasync ();
int
main ()
{
return fdatasync ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' rt; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_fdatasync=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_fdatasync+:} false; then :
  break
fi
done
if ${ac_cv_search_fdatasync+:} false; then :

else
  ac_cv_search_fdatasync=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_fdatasync" >&5
$as_echo "$ac_cv_search_fdatasync" >&6; }
ac_res=$ac_cv_search_fdatasync
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

fi



case $host_os in
    linux*|freebsd*|dragonfly*|darwin*)
		for ac_func in sendfile
do :
  ac_fn_c_check_func "$LINENO" "sendfile" "ac_cv_func_sendfile"
if test "x$ac_cv_func_sendfile" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SENDFILE 1
_ACEOF

fi
done

		;;
    solaris*)
		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing sendfilev" >&5
$as_echo_n "checking for library containing sendfilev... " >&6; }
if ${ac_cv_search_sendfilev+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_func_search_save_LIBS=$LIBS
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char sendfilev ();
int
main ()
{
return sendfilev ();
  ;
  return 0;
}
_ACEOF
for ac_lib in '' sendfile; do
  if test -z "$ac_lib"; then
    ac_res="none required"
  else
    ac_res=-l$ac_lib
    LIBS="-l$ac_lib  $ac_func_search_save_LIBS"
  fi
  if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_search_sendfilev=$ac_res
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext
  if ${ac_cv_search_sendfilev+:} false; then :
  break
fi
done
if ${ac_cv_search_sendfilev+:} false; then :

else
  ac_cv_search_sendfilev=no
fi
rm conftest.$ac_ext
LIBS=$ac_func_search_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_sendfilev" >&5
$as_echo "$ac_cv_search_sendfilev" >&6; }
ac_res=$ac_cv_search_sendfilev
if test "$ac_res" != no; then :
  test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"

$as_echo "#define HAVE_SENDFILEV 1" >>confdefs.h

fi

		;;
    win32)
		LIBS="$LIBS -lmswsock"
		;;
    *)
		;;
esac


saved_cppflags=$CPPFLAGS
CPPFLAGS="$CPPFLAGS $EMU_THR_DEFS"
saved_libs=$LIBS
LIBS="$LIBS $EMU_THR_X_LIBS"

for ac_header in windows.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "windows.h" "ac_cv_header_windows_h" "$ac_includes_default"
if test "x$ac_cv_header_windows_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_WINDOWS_H 1
_ACEOF

fi

done

for ac_header in winsock2.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "winsock2.h" "ac_cv_header_winsock2_h" "$ac_includes_default"
if test "x$ac_cv_header_winsock2_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_WINSOCK2_H 1
_ACEOF

fi

done

for ac_header in ws2tcpip.h
do :
  ac_fn_c_check_header_compile "$LINENO" "ws2tcpip.h" "ac_cv_header_ws2tcpip_h" "
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif

"
if test "x$ac_cv_header_ws2tcpip_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_WS2TCPIP_H 1
_ACEOF

fi

done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for getaddrinfo" >&5
$as_echo_n "checking for getaddrinfo... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
#include <string.h>
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
#ifndef __WIN32__
#include <sys/socket.h>
#include <netdb.h>
#endif

int
main ()
{

getaddrinfo("","",NULL,NULL);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_getaddrinfo=yes
else
  have_getaddrinfo=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
if test $have_getaddrinfo = yes; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether getaddrinfo accepts enough flags" >&5
$as_echo_n "checking whether getaddrinfo accepts enough flags... " >&6; }
        cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
#include <string.h>
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
#ifndef __WIN32__
#include <sys/socket.h>
#include <netdb.h>
#endif

int
main ()
{

    struct addrinfo hints, *ai;
    memset(&hints, 0, sizeof(hints));
    hints.ai_flags = AI_CANONNAME;
    hints.ai_socktype = SOCK_STREAM;
    hints.ai_family = AF_INET6;
    if (getaddrinfo("::", NULL, &hints, &ai) == 0) {
	freeaddrinfo(ai);
	exit(0);
    } else {
	exit(1);
    }

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :

else
  have_getaddrinfo=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_getaddrinfo" >&5
$as_echo "$have_getaddrinfo" >&6; }
	case $have_getaddrinfo in
	    yes)

$as_echo "#define HAVE_GETADDRINFO 1" >>confdefs.h
;;
	    *) ;;
	esac
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for getnameinfo" >&5
$as_echo_n "checking for getnameinfo... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
#include <string.h>
#ifdef HAVE_WINSOCK2_H
#include <winsock2.h>
#endif
#ifdef HAVE_WINDOWS_H
#include <windows.h>
#endif
#ifdef HAVE_WS2TCPIP_H
#include <ws2tcpip.h>
#endif
#ifndef __WIN32__
#include <sys/socket.h>
#include <netdb.h>
#endif

int
main ()
{

getnameinfo(NULL,0,NULL,0,NULL,0,0);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_getnameinfo=yes
else
  have_getnameinfo=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
if test $have_getnameinfo = yes; then
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }

$as_echo "#define HAVE_GETNAMEINFO 1" >>confdefs.h

else
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


for ac_func in getipnodebyname getipnodebyaddr gethostbyname2
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done


for ac_func in ieee_handler fpsetmask finite isnan isinf res_gethostbyname dlopen \
		pread pwrite memmove strerror strerror_r strncasecmp \
		gethrtime localtime_r gmtime_r mprotect madvise posix_madvise \
		mmap mremap memcpy mallopt sbrk _sbrk __sbrk brk _brk __brk \
		flockfile fstat strlcpy strlcat setsid posix2time time2posix \
		setlocale nl_langinfo poll mlockall ppoll vsyslog
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done


## We have a special check for inet_pton as AC_CHECK_FUCNS does not work
## on windows 32-bit as there a macro is used to rename the symbol...
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for inet_pton" >&5
$as_echo_n "checking for inet_pton... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#ifdef WIN32
#include <ws2tcpip.h>
#else
#include <arpa/inet.h>
#endif

int
main ()
{
inet_pton(2,"",(void*)0)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_inet_pton=yes
else
  have_inet_pton=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

if test $have_inet_pton = yes; then

$as_echo "#define HAVE_INET_PTON 1" >>confdefs.h

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isfinite" >&5
$as_echo_n "checking for isfinite... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <math.h>
int
main ()
{
isfinite(0);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  have_isfinite=yes
else
  have_isfinite=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

if test $have_isfinite = yes; then

$as_echo "#define HAVE_ISFINITE 1" >>confdefs.h

    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

case X$erl_xcomp_posix_memalign in
     Xno) ;;
     Xyes) have_posix_memalign=yes ;;
     *)
	ac_fn_c_check_func "$LINENO" "posix_memalign" "ac_cv_func_posix_memalign"
if test "x$ac_cv_func_posix_memalign" = xyes; then :
  if test "$cross_compiling" != yes; then
if test "$cross_compiling" = yes; then :
  { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
as_fn_error $? "cannot run test program while cross compiling
See \`config.log' for more details" "$LINENO" 5; }
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
int main(void) {
    void *ptr = NULL;
    int error;
    size_t alignment = 0x40000, size = 0x20028;
    if ((error = posix_memalign(&ptr, alignment, size)) != 0 || ptr == NULL)
      return error;
    return 0;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  have_posix_memalign=yes

fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

		 else
			have_posix_memalign=yes
		 fi
fi
;;
esac

if test "$have_posix_memalign" = "yes"; then

$as_echo "#define HAVE_POSIX_MEMALIGN 1" >>confdefs.h

fi


case $host_os in
        darwin10.8.0)
	    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for writev" >&5
$as_echo_n "checking for writev... " >&6; }
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; } ;;
        *)
	    for ac_func in writev
do :
  ac_fn_c_check_func "$LINENO" "writev" "ac_cv_func_writev"
if test "x$ac_cv_func_writev" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_WRITEV 1
_ACEOF

fi
done
 ;;
esac

ac_fn_c_check_decl "$LINENO" "posix2time" "ac_cv_have_decl_posix2time" "#include <time.h>
"
if test "x$ac_cv_have_decl_posix2time" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_POSIX2TIME $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "time2posix" "ac_cv_have_decl_time2posix" "#include <time.h>
"
if test "x$ac_cv_have_decl_time2posix" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_TIME2POSIX $ac_have_decl
_ACEOF


for ac_func in vprintf
do :
  ac_fn_c_check_func "$LINENO" "vprintf" "ac_cv_func_vprintf"
if test "x$ac_cv_func_vprintf" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_VPRINTF 1
_ACEOF

ac_fn_c_check_func "$LINENO" "_doprnt" "ac_cv_func__doprnt"
if test "x$ac_cv_func__doprnt" = xyes; then :

$as_echo "#define HAVE_DOPRNT 1" >>confdefs.h

fi

fi
done



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for conflicting declaration of fread" >&5
$as_echo_n "checking for conflicting declaration of fread... " >&6; }
if ${ac_cv_func_decl_fread+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>

int
main ()
{
extern int fread();
char *c = (char *)fread;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  eval "ac_cv_func_decl_fread=no"
else
  eval "ac_cv_func_decl_fread=yes"
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi

if eval "test \"`echo '$ac_cv_func_decl_'fread`\" = yes"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }

$as_echo "#define HAVE_CONFLICTING_FREAD_DECLARATION 1" >>confdefs.h

else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for putc_unlocked" >&5
$as_echo_n "checking for putc_unlocked... " >&6; }
if ${erts_cv_putc_unlocked+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>
int
main ()
{
int res = putc_unlocked('x',stdout);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_putc_unlocked=yes
else
  erts_cv_putc_unlocked=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_putc_unlocked" >&5
$as_echo "$erts_cv_putc_unlocked" >&6; }
if test $erts_cv_putc_unlocked = yes; then

$as_echo "#define HAVE_PUTC_UNLOCKED 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fwrite_unlocked" >&5
$as_echo_n "checking for fwrite_unlocked... " >&6; }
if ${erts_cv_fwrite_unlocked+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <stdio.h>
int
main ()
{
size_t res = fwrite_unlocked(NULL,sizeof(char),0,stdout);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_fwrite_unlocked=yes
else
  erts_cv_fwrite_unlocked=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_fwrite_unlocked" >&5
$as_echo "$erts_cv_fwrite_unlocked" >&6; }
if test $erts_cv_fwrite_unlocked = yes; then

$as_echo "#define HAVE_FWRITE_UNLOCKED 1" >>confdefs.h

fi

for ac_func in openpty
do :
  ac_fn_c_check_func "$LINENO" "openpty" "ac_cv_func_openpty"
if test "x$ac_cv_func_openpty" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_OPENPTY 1
_ACEOF

fi
done


for ac_header in net/if_dl.h ifaddrs.h netpacket/packet.h sys/un.h
do :
  as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF

fi

done

for ac_func in getifaddrs
do :
  ac_fn_c_check_func "$LINENO" "getifaddrs" "ac_cv_func_getifaddrs"
if test "x$ac_cv_func_getifaddrs" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GETIFADDRS 1
_ACEOF

fi
done

ac_fn_c_check_member "$LINENO" "struct sockaddr_un" "sun_path" "ac_cv_member_struct_sockaddr_un_sun_path" "#include <sys/un.h>
"
if test "x$ac_cv_member_struct_sockaddr_un_sun_path" = xyes; then :

cat >>confdefs.h <<_ACEOF
#define HAVE_STRUCT_SOCKADDR_UN_SUN_PATH 1
_ACEOF


fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether in6addr_any is declared" >&5
$as_echo_n "checking whether in6addr_any is declared... " >&6; }
if ${erts_cv_have_in6addr_any+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

		#include <sys/types.h>
		#include <sys/socket.h>
		#include <netinet/in.h>
		#include <stdio.h>

int
main ()
{
printf("%d", in6addr_any.s6_addr[16]);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_have_in6addr_any=yes
else
  erts_cv_have_in6addr_any=no

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_have_in6addr_any" >&5
$as_echo "$erts_cv_have_in6addr_any" >&6; }

case "$erts_cv_have_in6addr_any" in
 yes)

$as_echo "#define HAVE_IN6ADDR_ANY 1" >>confdefs.h

esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether in6addr_loopback is declared" >&5
$as_echo_n "checking whether in6addr_loopback is declared... " >&6; }
if ${erts_cv_have_in6addr_loopback+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

		#include <sys/types.h>
		#include <sys/socket.h>
		#include <netinet/in.h>
		#include <stdio.h>

int
main ()
{
printf("%d", in6addr_loopback.s6_addr[16]);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_have_in6addr_loopback=yes
else
  erts_cv_have_in6addr_loopback=no

fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_have_in6addr_loopback" >&5
$as_echo "$erts_cv_have_in6addr_loopback" >&6; }

case "$erts_cv_have_in6addr_loopback" in
 yes)

$as_echo "#define HAVE_IN6ADDR_LOOPBACK 1" >>confdefs.h

esac

ac_fn_c_check_decl "$LINENO" "IN6ADDR_ANY_INIT" "ac_cv_have_decl_IN6ADDR_ANY_INIT" "
		#include <sys/types.h>
		#include <sys/socket.h>
		#include <netinet/in.h>

"
if test "x$ac_cv_have_decl_IN6ADDR_ANY_INIT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_IN6ADDR_ANY_INIT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "IN6ADDR_LOOPBACK_INIT" "ac_cv_have_decl_IN6ADDR_LOOPBACK_INIT" "
		#include <sys/types.h>
		#include <sys/socket.h>
		#include <netinet/in.h>

"
if test "x$ac_cv_have_decl_IN6ADDR_LOOPBACK_INIT" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_IN6ADDR_LOOPBACK_INIT $ac_have_decl
_ACEOF
ac_fn_c_check_decl "$LINENO" "IPV6_V6ONLY" "ac_cv_have_decl_IPV6_V6ONLY" "
		#include <sys/types.h>
		#include <sys/socket.h>
		#include <netinet/in.h>

"
if test "x$ac_cv_have_decl_IPV6_V6ONLY" = xyes; then :
  ac_have_decl=1
else
  ac_have_decl=0
fi

cat >>confdefs.h <<_ACEOF
#define HAVE_DECL_IPV6_V6ONLY $ac_have_decl
_ACEOF



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sched_getaffinity/sched_setaffinity" >&5
$as_echo_n "checking for sched_getaffinity/sched_setaffinity... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sched.h>
int
main ()
{

#ifndef CPU_SETSIZE
#error no CPU_SETSIZE
#endif
	int res;
	cpu_set_t cpuset;
	CPU_ZERO(&cpuset);
	CPU_SET(1, &cpuset);
	res = sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
	res = sched_getaffinity(0, sizeof(cpu_set_t), &cpuset);
	res = CPU_ISSET(1, &cpuset);
	CPU_CLR(1, &cpuset);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  sched_xetaffinity=yes
else
  sched_xetaffinity=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $sched_xetaffinity" >&5
$as_echo "$sched_xetaffinity" >&6; }
if test $sched_xetaffinity = yes; then

$as_echo "#define HAVE_SCHED_xETAFFINITY 1" >>confdefs.h

fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for pset functionality" >&5
$as_echo_n "checking for pset functionality... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/pset.h>
int
main ()
{

	int res;
	psetid_t id = PS_MYID;
	int type = PS_PRIVATE;
	uint_t numcpus = 1024;
	processorid_t cpulist[1024];

	res = pset_info(id, &type, &numcpus, &cpulist[0]);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  pset_functionality=yes
else
  pset_functionality=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pset_functionality" >&5
$as_echo "$pset_functionality" >&6; }
if test $pset_functionality = yes; then

$as_echo "#define HAVE_PSET 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for processor_bind functionality" >&5
$as_echo_n "checking for processor_bind functionality... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <sys/types.h>
#include <sys/processor.h>
#include <sys/procset.h>

int
main ()
{

	int res = processor_bind(P_LWPID, P_MYID, PBIND_NONE, NULL);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  processor_bind_functionality=yes
else
  processor_bind_functionality=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $processor_bind_functionality" >&5
$as_echo "$processor_bind_functionality" >&6; }
if test $processor_bind_functionality = yes; then

$as_echo "#define HAVE_PROCESSOR_BIND 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for cpuset_getaffinity/cpuset_setaffinity" >&5
$as_echo_n "checking for cpuset_getaffinity/cpuset_setaffinity... " >&6; }
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <sys/param.h>
#include <sys/cpuset.h>

int
main ()
{

	int res;
	cpuset_t cpuset;
	CPU_ZERO(&cpuset);
	CPU_SET(1, &cpuset);
	res = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset_t), &cpuset);
	res = cpuset_getaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset_t), &cpuset);
	res = CPU_ISSET(1, &cpuset);
	CPU_CLR(1, &cpuset);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  cpuset_xetaffinity=yes
else
  cpuset_xetaffinity=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cpuset_xetaffinity" >&5
$as_echo "$cpuset_xetaffinity" >&6; }
if test $cpuset_xetaffinity = yes; then

$as_echo "#define HAVE_CPUSET_xETAFFINITY 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 'end' symbol" >&5
$as_echo_n "checking for 'end' symbol... " >&6; }
if ${erts_cv_have_end_symbol+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
extern char end; {char *x = &end; *x= 0;}
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_have_end_symbol=yes
else
  erts_cv_have_end_symbol=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_have_end_symbol" >&5
$as_echo "$erts_cv_have_end_symbol" >&6; }
if test $erts_cv_have_end_symbol = yes; then

$as_echo "#define HAVE_END_SYMBOL 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for '_end' symbol" >&5
$as_echo_n "checking for '_end' symbol... " >&6; }
if ${erts_cv_have__end_symbol+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
extern char _end; {char *x = &_end; *x= 0;}
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_have__end_symbol=yes
else
  erts_cv_have__end_symbol=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_have__end_symbol" >&5
$as_echo "$erts_cv_have__end_symbol" >&6; }
if test $erts_cv_have__end_symbol = yes; then

$as_echo "#define HAVE__END_SYMBOL 1" >>confdefs.h

fi

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __after_morecore_hook can track malloc()s core memory use" >&5
$as_echo_n "checking if __after_morecore_hook can track malloc()s core memory use... " >&6; }
if ${erts_cv___after_morecore_hook_can_track_malloc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test "$cross_compiling" = yes; then :

	case X$erl_xcomp_after_morecore_hook in
	    X) erts_cv___after_morecore_hook_can_track_malloc=cross;;
	    Xyes|Xno) erts_cv___after_morecore_hook_can_track_malloc=$erl_xcomp_after_morecore_hook;;
	    *) as_fn_error $? "Bad erl_xcomp_after_morecore_hook value: $erl_xcomp_after_morecore_hook" "$LINENO" 5;;
	esac


else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
#ifdef HAVE_MALLOC_H
#  include <malloc.h>
#endif
#if defined(HAVE_END_SYMBOL)
extern char end;
#elif defined(HAVE__END_SYMBOL)
extern char _end;
#endif

#ifdef ETHR_PTHREADS
#  ifdef ETHR_HAVE_PTHREAD_H
#    include <pthread.h>
#  else
#    ifdef ETHR_HAVE_MIT_PTHREAD_H
#      include <pthread/mit/pthread.h>
#    endif
#  endif
#  define N_THR 5
#else
#  define N_THR 1
#endif

static char *heap_start = NULL;
static char *heap_end = NULL;

void update_heap_size(void)
{
    heap_end = (char *) sbrk(0);
}

void init_hook(void)
{
#if defined(HAVE_END_SYMBOL)
    heap_start = &end;
#elif defined(HAVE__END_SYMBOL)
    heap_start = &_end;
#else
    heap_start = sbrk(0);
#endif
    __after_morecore_hook = update_heap_size;
}

void (*__malloc_initialize_hook) (void) = init_hook;

static int
check_malloc(int size)
{
    char *p = (char *) malloc(size);
    if (!heap_start || !heap_end) return 0;
    if (!p) return 0;
    if (p < heap_start || heap_end <= p) return 0;
    if (p + size < heap_start || heap_end < p + size) return 0;
    return 1;
}

#ifdef ETHR_PTHREADS
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
#endif

static void *
do_tests(void *vresp)
{
    int i, ok = 0;
#ifdef ETHR_PTHREADS
    if (pthread_mutex_lock(&mutex) != 0)
	return NULL;
#endif

    for (i = 0; i < 10; i++)
	if (!check_malloc(1000))
	    goto failed;
    for (i = 0; i < 100; i++)
	if (!check_malloc(1))
	    goto failed;
    if (!check_malloc(1024*1024+1))
	goto failed;
    if (!check_malloc(10*1024*1024+1))
	goto failed;
    ok = 1;

 failed:
#ifdef ETHR_PTHREADS
    if (pthread_mutex_unlock(&mutex) != 0)
	return NULL;
#endif
    if (ok)
	*((int *) vresp) = 0;
    return NULL;
}


int main(void)
{
    int res[N_THR], i;
#ifdef ETHR_PTHREADS
    pthread_t tid[N_THR];
#endif

#if defined(HAVE_MALLOPT) && defined(M_MMAP_MAX)
    (void) mallopt(M_MMAP_MAX, 0);
#endif

    for (i = 0; i < N_THR; i++)
	res[i] = 1;
#ifdef ETHR_PTHREADS
    for (i = 1; i < N_THR; i++)
	if (pthread_create(&tid[i], NULL, do_tests, &res[i]) != 0)
	    return 1;
#endif
    (void) do_tests(&res[0]);
#ifdef ETHR_PTHREADS
    for (i = 1; i < N_THR; i++)
	if (pthread_join(tid[i], NULL) != 0)
	    return 1;
#endif
    for (i = 0; i < N_THR; i++)
	if (res[i])
	    return 1;
    return 0;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  erts_cv___after_morecore_hook_can_track_malloc=yes
else
  erts_cv___after_morecore_hook_can_track_malloc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv___after_morecore_hook_can_track_malloc" >&5
$as_echo "$erts_cv___after_morecore_hook_can_track_malloc" >&6; }

case $erts_cv___after_morecore_hook_can_track_malloc in
	yes)
$as_echo "#define ERTS___AFTER_MORECORE_HOOK_CAN_TRACK_MALLOC 1" >>confdefs.h
;;
	cross) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result no guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result no guessed because of cross compilation" >&2;};;
	*) ;;
esac

if test "x$ac_cv_func_sbrk" = "xyes"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking types of sbrk()s return value and argument" >&5
$as_echo_n "checking types of sbrk()s return value and argument... " >&6; }
if ${erts_cv_sbrk_ret_arg_types+:} false; then :
  $as_echo_n "(cached) " >&6
else


	erts_cv_sbrk_ret_arg_types=unknown
	ret_types="void *,char *"
	arg_types="intptr_t,ptrdiff_t,int,long"
	save_ifs="$IFS"; IFS=","
	for rtype in $ret_types; do
	    for atype in $arg_types; do
		IFS=$save_ifs
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
				#include <unistd.h>
int
main ()
{
$rtype sbrk($atype incr);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_sbrk_ret_arg_types="$rtype,$atype"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
		IFS=","
		if test "$erts_cv_sbrk_ret_arg_types" != "unknown"; then
		    break 2
		fi
	    done
	done
	IFS=$save_ifs
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_sbrk_ret_arg_types" >&5
$as_echo "$erts_cv_sbrk_ret_arg_types" >&6; }

    if test "$erts_cv_sbrk_ret_arg_types" != "unknown"; then
	save_ifs="$IFS"; IFS=","
	read ret_type arg_type <<EOF
$erts_cv_sbrk_ret_arg_types
EOF
	IFS=$save_ifs

cat >>confdefs.h <<_ACEOF
#define SBRK_RET_TYPE $ret_type
_ACEOF


cat >>confdefs.h <<_ACEOF
#define SBRK_ARG_TYPE $arg_type
_ACEOF

    fi
fi

if test $ac_cv_func_brk = yes; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking types of brk()s return value and argument" >&5
$as_echo_n "checking types of brk()s return value and argument... " >&6; }
if ${erts_cv_brk_ret_arg_types+:} false; then :
  $as_echo_n "(cached) " >&6
else


	erts_cv_brk_ret_arg_types=unknown
	ret_types="int,long,char *,void *"
	arg_types="void *,const void *,char *,const char *"
	save_ifs="$IFS"; IFS=","
	for rtype in $ret_types; do
	    for atype in $arg_types; do
		IFS=$save_ifs
		cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
				#include <unistd.h>
int
main ()
{
$rtype brk($atype endds);
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erts_cv_brk_ret_arg_types="$rtype,$atype"
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
		IFS=","
		if test "$erts_cv_brk_ret_arg_types" != "unknown"; then
		    break 2
		fi
	    done
	done
	IFS=$save_ifs
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_brk_ret_arg_types" >&5
$as_echo "$erts_cv_brk_ret_arg_types" >&6; }

    if test "$erts_cv_brk_ret_arg_types" != "unknown"; then
	save_ifs="$IFS"; IFS=","
	read ret_type arg_type <<EOF
$erts_cv_brk_ret_arg_types
EOF
	IFS=$save_ifs

cat >>confdefs.h <<_ACEOF
#define BRK_RET_TYPE $ret_type
_ACEOF


cat >>confdefs.h <<_ACEOF
#define BRK_ARG_TYPE $arg_type
_ACEOF

    fi

fi

if test $ac_cv_func_sbrk = yes; then

    { $as_echo "$as_me:${as_lineno-$LINENO}: checking if sbrk()/brk() wrappers can track malloc()s core memory use" >&5
$as_echo_n "checking if sbrk()/brk() wrappers can track malloc()s core memory use... " >&6; }
if ${erts_cv_brk_wrappers_can_track_malloc+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test "$cross_compiling" = yes; then :

	    case X$erl_xcomp_dlsym_brk_wrappers in
		X) erts_cv_brk_wrappers_can_track_malloc=cross;;
		Xyes|Xno) erts_cv_brk_wrappers_can_track_malloc=$erl_xcomp_dlsym_brk_wrappers;;
		*) as_fn_error $? "Bad erl_xcomp_dlsym_brk_wrappers value: $erl_xcomp_dlsym_brk_wrappers" "$LINENO" 5;;
	    esac

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#ifdef HAVE_DLFCN_H
#  include <dlfcn.h>
#endif

/*
 * Our implementation requires that we have sbrk(), and 'end' or '_end'.
 */

#if !defined(HAVE_SBRK)
#  error no sbrk()
#endif
#if defined(HAVE_END_SYMBOL)
extern char end;
#elif defined(HAVE__END_SYMBOL)
extern char _end;
#else
#  error no 'end' nor '_end'
#endif

#ifdef ETHR_PTHREADS
#  ifdef ETHR_HAVE_PTHREAD_H
#    include <pthread.h>
#  else
#    ifdef ETHR_HAVE_MIT_PTHREAD_H
#      include <pthread/mit/pthread.h>
#    endif
#  endif
#  define N_THR 5
#else
#  define N_THR 1
#endif

#define SBRK_IMPL(RET_TYPE, SBRK, ARG_TYPE)				\
RET_TYPE SBRK (ARG_TYPE);						\
static RET_TYPE (*real_ ## SBRK)(ARG_TYPE) = NULL;			\
RET_TYPE								\
SBRK (ARG_TYPE arg)							\
{									\
    RET_TYPE res;							\
    if (!real_ ## SBRK) real_ ## SBRK = dlsym(RTLD_NEXT, #SBRK);	\
    res = (*real_ ## SBRK)(arg);					\
    if (res != (RET_TYPE) -1) heap_end = (char *) (*real_ ## SBRK)(0);	\
    return res;								\
}

#define BRK_IMPL(RET_TYPE, BRK, ARG_TYPE)				\
RET_TYPE BRK (ARG_TYPE);						\
static RET_TYPE (*real_ ## BRK)(ARG_TYPE) = NULL;			\
RET_TYPE								\
BRK (ARG_TYPE arg)							\
{									\
    RET_TYPE res;							\
    if (!real_ ## BRK) real_ ## BRK = dlsym(RTLD_NEXT, #BRK);		\
    res = (*real_ ## BRK)(arg);						\
    if (res != (RET_TYPE) -1) heap_end = (char *) arg;			\
    return res;								\
}

static char *heap_start = NULL;
static char *heap_end = NULL;

SBRK_IMPL(SBRK_RET_TYPE, sbrk, SBRK_ARG_TYPE)
#ifdef HAVE_BRK
   BRK_IMPL(BRK_RET_TYPE, brk, BRK_ARG_TYPE)
#endif

#ifdef HAVE__SBRK
   SBRK_IMPL(SBRK_RET_TYPE, _sbrk, SBRK_ARG_TYPE)
#endif
#ifdef HAVE__BRK
   BRK_IMPL(BRK_RET_TYPE, _brk, BRK_ARG_TYPE)
#endif

#ifdef HAVE___SBRK
   SBRK_IMPL(SBRK_RET_TYPE, __sbrk, SBRK_ARG_TYPE)
#endif
#ifdef HAVE___BRK
   BRK_IMPL(BRK_RET_TYPE, __brk, BRK_ARG_TYPE)
#endif

static int
check_malloc(int size)
{
    char *p = (char *) malloc(size);
    if (!heap_start || !heap_end) return 0;
    if (!p) return 0;
    if (p < heap_start || heap_end <= p) return 0;
    if (p + size < heap_start || heap_end < p + size) return 0;
    return 1;
}

#ifdef ETHR_PTHREADS
pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
#endif

static void *
do_tests(void *vresp)
{
    int i, ok = 0;
#ifdef ETHR_PTHREADS
    if (pthread_mutex_lock(&mutex) != 0)
	return NULL;
#endif

    for (i = 0; i < 10; i++)
	if (!check_malloc(1000))
	    goto failed;
    for (i = 0; i < 100; i++)
	if (!check_malloc(1))
	    goto failed;
    if (!check_malloc(1024*1024+1))
	goto failed;
    if (!check_malloc(10*1024*1024+1))
	goto failed;
    ok = 1;

 failed:
#ifdef ETHR_PTHREADS
    if (pthread_mutex_unlock(&mutex) != 0)
	return NULL;
#endif
    if (ok)
	*((int *) vresp) = 0;
    return NULL;
}


int main(void)
{
    int res[N_THR], i;
#ifdef ETHR_PTHREADS
    pthread_t tid[N_THR];
#endif
#if defined(HAVE_END_SYMBOL)
    heap_start = &end;
#elif defined(HAVE__END_SYMBOL)
    heap_start = &_end;
#endif

#if defined(HAVE_MALLOPT) && defined(M_MMAP_MAX)
    (void) mallopt(M_MMAP_MAX, 0);
#endif

    for (i = 0; i < N_THR; i++)
	res[i] = 1;
#ifdef ETHR_PTHREADS
    for (i = 1; i < N_THR; i++)
	if (pthread_create(&tid[i], NULL, do_tests, &res[i]) != 0)
	    return 1;
#endif
    (void) do_tests(&res[0]);
#ifdef ETHR_PTHREADS
    for (i = 1; i < N_THR; i++)
	if (pthread_join(tid[i], NULL) != 0)
	    return 1;
#endif
    for (i = 0; i < N_THR; i++)
	if (res[i])
	    return 1;
    return 0;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  erts_cv_brk_wrappers_can_track_malloc=yes
else
  erts_cv_brk_wrappers_can_track_malloc=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erts_cv_brk_wrappers_can_track_malloc" >&5
$as_echo "$erts_cv_brk_wrappers_can_track_malloc" >&6; }
	case $erts_cv_brk_wrappers_can_track_malloc in
	    yes)

$as_echo "#define ERTS_BRK_WRAPPERS_CAN_TRACK_MALLOC 1" >>confdefs.h
;;
	    cross)
		{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result no guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result no guessed because of cross compilation" >&2;};;
	    *) ;;
	esac
fi

LIBS=$saved_libs
CPPFLAGS=$saved_cppflags

case $ARCH in
     x86|amd64)

$as_echo "#define ERTS_STRUCTURE_ALIGNED_ALLOC 1" >>confdefs.h
;;
     *)
	;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for IP version 6 support" >&5
$as_echo_n "checking for IP version 6 support... " >&6; }
if ${ac_cv_sys_ipv6_support+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ok_so_far=yes
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#ifdef __WIN32__
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <netinet/in.h>
#endif
int
main ()
{
struct in6_addr a6; struct sockaddr_in6 s6;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ok_so_far=yes
else
  ok_so_far=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test $ok_so_far = yes; then
  ac_cv_sys_ipv6_support=yes
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#ifdef __WIN32__
#include <winsock2.h>
#include <ws2tcpip.h>
#else
#include <netinet/in.h>
#endif
int
main ()
{
struct in_addr6 a6; struct sockaddr_in6 s6;
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_sys_ipv6_support=in_addr6
else
  ac_cv_sys_ipv6_support=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi

fi


case ${ac_cv_sys_ipv6_support} in
  yes)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }

$as_echo "#define HAVE_IN6 1" >>confdefs.h

    ;;
  in_addr6)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes (but I am redefining in_addr6 to in6_addr)" >&5
$as_echo "yes (but I am redefining in_addr6 to in6_addr)" >&6; }

$as_echo "#define HAVE_IN6 1" >>confdefs.h


$as_echo "#define HAVE_IN_ADDR6_STRUCT /**/" >>confdefs.h

    ;;
  *)
    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
    ;;
esac

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for multicast support" >&5
$as_echo_n "checking for multicast support... " >&6; }
if ${ac_cv_sys_multicast_support+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#if defined(IP_MULTICAST_TTL) && defined(IP_MULTICAST_LOOP) && defined(IP_MULTICAST_IF) && defined(IP_ADD_MEMBERSHIP) && defined(IP_DROP_MEMBERSHIP)
yes
#endif

_ACEOF
if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
  $EGREP "^yes$" >/dev/null 2>&1; then :
  ac_cv_sys_multicast_support=yes
else
  ac_cv_sys_multicast_support=no
fi
rm -f conftest*

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_multicast_support" >&5
$as_echo "$ac_cv_sys_multicast_support" >&6; }
if test $ac_cv_sys_multicast_support = yes; then

$as_echo "#define HAVE_MULTICAST_SUPPORT 1" >>confdefs.h

fi




# Check whether --with-clock-resolution was given.
if test "${with_clock_resolution+set}" = set; then :
  withval=$with_clock_resolution;
fi



# Check whether --with-clock-gettime-realtime-id was given.
if test "${with_clock_gettime_realtime_id+set}" = set; then :
  withval=$with_clock_gettime_realtime_id;
fi



# Check whether --with-clock-gettime-monotonic-id was given.
if test "${with_clock_gettime_monotonic_id+set}" = set; then :
  withval=$with_clock_gettime_monotonic_id;
fi


# Check whether --enable-prefer-elapsed-monotonic-time-during-suspend was given.
if test "${enable_prefer_elapsed_monotonic_time_during_suspend+set}" = set; then :
  enableval=$enable_prefer_elapsed_monotonic_time_during_suspend;  case "$enableval" in
    yes) prefer_elapsed_monotonic_time_during_suspend=yes ;;
    *)  prefer_elapsed_monotonic_time_during_suspend=no ;;
  esac
else
  prefer_elapsed_monotonic_time_during_suspend=no
fi


# Check whether --enable-gettimeofday-as-os-system-time was given.
if test "${enable_gettimeofday_as_os_system_time+set}" = set; then :
  enableval=$enable_gettimeofday_as_os_system_time;  case "$enableval" in
    yes) force_gettimeofday_os_system_time=yes ;;
    *)  force_gettimeofday_os_system_time=no ;;
  esac
else
  force_gettimeofday_os_system_time=no
fi


case "$with_clock_resolution" in
   ""|no|yes)
     with_clock_resolution=default;;
   high|low|default)
     ;;
   *)
     as_fn_error $? "Invalid wanted clock resolution: $with_clock_resolution" "$LINENO" 5
     ;;
esac

if test "$force_gettimeofday_os_system_time" = "yes"; then

  for ac_func in gettimeofday
do :
  ac_fn_c_check_func "$LINENO" "gettimeofday" "ac_cv_func_gettimeofday"
if test "x$ac_cv_func_gettimeofday" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_GETTIMEOFDAY 1
_ACEOF

fi
done

  if test "$ac_cv_func_gettimeofday" = "yes"; then

$as_echo "#define OS_SYSTEM_TIME_GETTIMEOFDAY 1" >>confdefs.h

  else
    as_fn_error $? "No gettimeofday() available" "$LINENO" 5
  fi

else # $force_gettimeofday_os_system_time != yes

case "$with_clock_gettime_realtime_id" in
   ""|no)
     with_clock_gettime_realtime_id=no
     ;;
   CLOCK_*CPUTIME*)
     as_fn_error $? "Invalid clock_gettime() realtime clock id: Refusing to use the cputime clock id $with_clock_gettime_realtime_id as realtime clock id" "$LINENO" 5
     ;;
   CLOCK_MONOTONIC*|CLOCK_BOOTTIME*|CLOCK_UPTIME*|CLOCK_HIGHRES*)
     as_fn_error $? "Invalid clock_gettime() realtime clock id: Refusing to use the monotonic clock id $with_clock_gettime_realtime_id as realtime clock id" "$LINENO" 5
     ;;
   CLOCK_*)
     ;;
   *)
     as_fn_error $? "Invalid clock_gettime() clock id: $with_clock_gettime_realtime_id" "$LINENO" 5
     ;;
esac

case "$with_clock_resolution-$with_clock_gettime_realtime_id" in
  high-no)

  default_resolution_clock_gettime_wall="CLOCK_REALTIME"
  low_resolution_clock_gettime_wall="CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST"
  high_resolution_clock_gettime_wall="CLOCK_REALTIME_PRECISE"

  case "high_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_wall="$high_resolution_clock_gettime_wall"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_wall="$low_resolution_clock_gettime_wall"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_wall=""
	;;
    *)
	check_msg=""
	prefer_resolution_clock_gettime_wall=
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}wall clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}wall clock type... " >&6; }
if ${erl_cv_clock_gettime_wall_high_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_wall $default_resolution_clock_gettime_wall $high_resolution_clock_gettime_wall $low_resolution_clock_gettime_wall; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_wall_high_resolution=$clock_type
else
  erl_cv_clock_gettime_wall_high_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_wall_high_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_wall_high_resolution" >&5
$as_echo "$erl_cv_clock_gettime_wall_high_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     check_for_clock_getres=
  else
     check_for_clock_getres=clock_getres
  fi

  for ac_func in $check_for_clock_getres clock_get_attributes gettimeofday
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with wall clock type" >&5
$as_echo_n "checking for mach clock_get_time() with wall clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_wall+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_wall=yes
else
  erl_cv_mach_clock_get_time_wall=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_wall" >&5
$as_echo "$erl_cv_mach_clock_get_time_wall" >&6; }

  erl_wall_clock_lib=
  erl_wall_clock_low_resolution=no
  erl_wall_clock_id=
  case high_resolution-$erl_cv_clock_gettime_wall_high_resolution-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in
    *-*-*-*-win32)
      erl_wall_clock_func=WindowsAPI
      erl_wall_clock_low_resolution=yes
      ;;
    high_resolution-no-yes-*-*)
      erl_wall_clock_func=mach_clock_get_time
      erl_wall_clock_id=CALENDAR_CLOCK
      ;;
    *-CLOCK_*-*-*-*)
      erl_wall_clock_func=clock_gettime
      erl_wall_clock_lib=$clock_gettime_lib
      erl_wall_clock_id=$erl_cv_clock_gettime_wall_high_resolution
      for low_res_id in $low_resolution_clock_gettime_wall; do
      	  if test $erl_wall_clock_id = $low_res_id; then
	    erl_wall_clock_low_resolution=yes
	    break
	  fi
      done
      ;;
    *-no-*-yes-*)
      erl_wall_clock_func=gettimeofday
      ;;
    *)
      erl_wall_clock_func=none
      ;;
  esac
;;
  low-no)

  default_resolution_clock_gettime_wall="CLOCK_REALTIME"
  low_resolution_clock_gettime_wall="CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST"
  high_resolution_clock_gettime_wall="CLOCK_REALTIME_PRECISE"

  case "low_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_wall="$high_resolution_clock_gettime_wall"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_wall="$low_resolution_clock_gettime_wall"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_wall=""
	;;
    *)
	check_msg=""
	prefer_resolution_clock_gettime_wall=
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}wall clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}wall clock type... " >&6; }
if ${erl_cv_clock_gettime_wall_low_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_wall $default_resolution_clock_gettime_wall $high_resolution_clock_gettime_wall $low_resolution_clock_gettime_wall; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_wall_low_resolution=$clock_type
else
  erl_cv_clock_gettime_wall_low_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_wall_low_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_wall_low_resolution" >&5
$as_echo "$erl_cv_clock_gettime_wall_low_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     check_for_clock_getres=
  else
     check_for_clock_getres=clock_getres
  fi

  for ac_func in $check_for_clock_getres clock_get_attributes gettimeofday
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with wall clock type" >&5
$as_echo_n "checking for mach clock_get_time() with wall clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_wall+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_wall=yes
else
  erl_cv_mach_clock_get_time_wall=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_wall" >&5
$as_echo "$erl_cv_mach_clock_get_time_wall" >&6; }

  erl_wall_clock_lib=
  erl_wall_clock_low_resolution=no
  erl_wall_clock_id=
  case low_resolution-$erl_cv_clock_gettime_wall_low_resolution-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in
    *-*-*-*-win32)
      erl_wall_clock_func=WindowsAPI
      erl_wall_clock_low_resolution=yes
      ;;
    high_resolution-no-yes-*-*)
      erl_wall_clock_func=mach_clock_get_time
      erl_wall_clock_id=CALENDAR_CLOCK
      ;;
    *-CLOCK_*-*-*-*)
      erl_wall_clock_func=clock_gettime
      erl_wall_clock_lib=$clock_gettime_lib
      erl_wall_clock_id=$erl_cv_clock_gettime_wall_low_resolution
      for low_res_id in $low_resolution_clock_gettime_wall; do
      	  if test $erl_wall_clock_id = $low_res_id; then
	    erl_wall_clock_low_resolution=yes
	    break
	  fi
      done
      ;;
    *-no-*-yes-*)
      erl_wall_clock_func=gettimeofday
      ;;
    *)
      erl_wall_clock_func=none
      ;;
  esac
;;
  default-no)

  default_resolution_clock_gettime_wall="CLOCK_REALTIME"
  low_resolution_clock_gettime_wall="CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST"
  high_resolution_clock_gettime_wall="CLOCK_REALTIME_PRECISE"

  case "default_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_wall="$high_resolution_clock_gettime_wall"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_wall="$low_resolution_clock_gettime_wall"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_wall=""
	;;
    *)
	check_msg=""
	prefer_resolution_clock_gettime_wall=
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}wall clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}wall clock type... " >&6; }
if ${erl_cv_clock_gettime_wall_default_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_wall $default_resolution_clock_gettime_wall $high_resolution_clock_gettime_wall $low_resolution_clock_gettime_wall; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_wall_default_resolution=$clock_type
else
  erl_cv_clock_gettime_wall_default_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_wall_default_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_wall_default_resolution" >&5
$as_echo "$erl_cv_clock_gettime_wall_default_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     check_for_clock_getres=
  else
     check_for_clock_getres=clock_getres
  fi

  for ac_func in $check_for_clock_getres clock_get_attributes gettimeofday
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with wall clock type" >&5
$as_echo_n "checking for mach clock_get_time() with wall clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_wall+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_wall=yes
else
  erl_cv_mach_clock_get_time_wall=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_wall" >&5
$as_echo "$erl_cv_mach_clock_get_time_wall" >&6; }

  erl_wall_clock_lib=
  erl_wall_clock_low_resolution=no
  erl_wall_clock_id=
  case default_resolution-$erl_cv_clock_gettime_wall_default_resolution-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in
    *-*-*-*-win32)
      erl_wall_clock_func=WindowsAPI
      erl_wall_clock_low_resolution=yes
      ;;
    high_resolution-no-yes-*-*)
      erl_wall_clock_func=mach_clock_get_time
      erl_wall_clock_id=CALENDAR_CLOCK
      ;;
    *-CLOCK_*-*-*-*)
      erl_wall_clock_func=clock_gettime
      erl_wall_clock_lib=$clock_gettime_lib
      erl_wall_clock_id=$erl_cv_clock_gettime_wall_default_resolution
      for low_res_id in $low_resolution_clock_gettime_wall; do
      	  if test $erl_wall_clock_id = $low_res_id; then
	    erl_wall_clock_low_resolution=yes
	    break
	  fi
      done
      ;;
    *-no-*-yes-*)
      erl_wall_clock_func=gettimeofday
      ;;
    *)
      erl_wall_clock_func=none
      ;;
  esac
;;
  *)

  default_resolution_clock_gettime_wall="CLOCK_REALTIME"
  low_resolution_clock_gettime_wall="CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST"
  high_resolution_clock_gettime_wall="CLOCK_REALTIME_PRECISE"

  case "custom_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_wall="$high_resolution_clock_gettime_wall"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_wall="$low_resolution_clock_gettime_wall"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_wall="$with_clock_gettime_realtime_id"
	;;
    *)
	check_msg=""
	prefer_resolution_clock_gettime_wall=
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}wall clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}wall clock type... " >&6; }
if ${erl_cv_clock_gettime_wall_custom_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_wall $default_resolution_clock_gettime_wall $high_resolution_clock_gettime_wall $low_resolution_clock_gettime_wall; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_wall_custom_resolution=$clock_type
else
  erl_cv_clock_gettime_wall_custom_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_wall_custom_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_wall_custom_resolution" >&5
$as_echo "$erl_cv_clock_gettime_wall_custom_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     check_for_clock_getres=
  else
     check_for_clock_getres=clock_getres
  fi

  for ac_func in $check_for_clock_getres clock_get_attributes gettimeofday
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with wall clock type" >&5
$as_echo_n "checking for mach clock_get_time() with wall clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_wall+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), CALENDAR_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_wall=yes
else
  erl_cv_mach_clock_get_time_wall=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_wall" >&5
$as_echo "$erl_cv_mach_clock_get_time_wall" >&6; }

  erl_wall_clock_lib=
  erl_wall_clock_low_resolution=no
  erl_wall_clock_id=
  case custom_resolution-$erl_cv_clock_gettime_wall_custom_resolution-$erl_cv_mach_clock_get_time_wall-$ac_cv_func_gettimeofday-$host_os in
    *-*-*-*-win32)
      erl_wall_clock_func=WindowsAPI
      erl_wall_clock_low_resolution=yes
      ;;
    high_resolution-no-yes-*-*)
      erl_wall_clock_func=mach_clock_get_time
      erl_wall_clock_id=CALENDAR_CLOCK
      ;;
    *-CLOCK_*-*-*-*)
      erl_wall_clock_func=clock_gettime
      erl_wall_clock_lib=$clock_gettime_lib
      erl_wall_clock_id=$erl_cv_clock_gettime_wall_custom_resolution
      for low_res_id in $low_resolution_clock_gettime_wall; do
      	  if test $erl_wall_clock_id = $low_res_id; then
	    erl_wall_clock_low_resolution=yes
	    break
	  fi
      done
      ;;
    *-no-*-yes-*)
      erl_wall_clock_func=gettimeofday
      ;;
    *)
      erl_wall_clock_func=none
      ;;
  esac
;;
esac

case "$erl_wall_clock_func-$erl_wall_clock_id-$with_clock_gettime_realtime_id" in
  *-*-no)
    ;;
  clock_gettime-$with_clock_gettime_realtime_id-$with_clock_gettime_realtime_id)
    ;;
  *)
    as_fn_error $? "$with_clock_gettime_realtime_id as clock id to clock_gettime() doesn't compile" "$LINENO" 5
    ;;
esac

case $erl_wall_clock_func in
  none)
    as_fn_error $? "No wall clock source found" "$LINENO" 5
    ;;
  mach_clock_get_time)

$as_echo "#define OS_SYSTEM_TIME_USING_MACH_CLOCK_GET_TIME 1" >>confdefs.h

    ;;
  clock_gettime)

$as_echo "#define OS_SYSTEM_TIME_USING_CLOCK_GETTIME 1" >>confdefs.h

    ;;
  gettimeofday)

$as_echo "#define OS_SYSTEM_TIME_GETTIMEOFDAY 1" >>confdefs.h

    ;;
  *)
    ;;
esac

if test "x$erl_wall_clock_id" != "x"; then

cat >>confdefs.h <<_ACEOF
#define WALL_CLOCK_ID_STR "$erl_wall_clock_id"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define WALL_CLOCK_ID $erl_wall_clock_id
_ACEOF

fi

fi # $force_gettimeofday_os_system_time != yes

case "$with_clock_gettime_monotonic_id" in
   ""|no)
     with_clock_gettime_monotonic_id=no
     ;;
   CLOCK_*CPUTIME*)
     as_fn_error $? "Invalid clock_gettime() monotonic clock id: Refusing to use the cputime clock id $with_clock_gettime_monotonic_id as monotonic clock id" "$LINENO" 5
     ;;
   CLOCK_REALTIME*|CLOCK_TAI*)
     as_fn_error $? "Invalid clock_gettime() monotonic clock id: Refusing to use the realtime clock id $with_clock_gettime_monotonic_id as monotonic clock id" "$LINENO" 5
     ;;
   CLOCK_MONOTONIC)
     case $host_os in
         darwin*)
           # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
           # and Monterey, since it may step backwards.
           as_fn_error $? "Invalid clock_gettime() monotonic clock id: Refusing to use $with_clock_gettime_monotonic_id as monotonic clock id since it is buggy on MacOS" "$LINENO" 5;;
         *)
           ;;
     esac;;
   CLOCK_*)
     ;;
   *)
     as_fn_error $? "Invalid clock_gettime() clock id: $with_clock_gettime_monotonic_id" "$LINENO" 5
     ;;
esac

case "$with_clock_resolution-$with_clock_gettime_monotonic_id" in
  high-no)

  # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
  # and Monterey, since it may step backwards.
  if test "$prefer_elapsed_monotonic_time_during_suspend" = "yes"; then
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW";;
          *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE";;
     esac
  else
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW";;
                *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_UPTIME_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_PRECISE";;
     esac
  fi

  case "high_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
    *)
	check_msg="custom "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)" >&5
$as_echo_n "checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)... " >&6; }
if ${erl_cv_clock_gettime_monotonic_raw+:} false; then :
  $as_echo_n "(cached) " >&6
else

       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_raw=yes
else
  erl_cv_clock_gettime_monotonic_raw=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_raw" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_raw" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}monotonic clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}monotonic clock type... " >&6; }
if ${erl_cv_clock_gettime_monotonic_high_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_high_resolution=$clock_type
else
  erl_cv_clock_gettime_monotonic_high_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_monotonic_high_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_high_resolution" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_high_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
    for ac_func in clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  else
    for ac_func in clock_getres clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  fi


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with monotonic clock type" >&5
$as_echo_n "checking for mach clock_get_time() with monotonic clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_monotonic+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_monotonic=yes
else
  erl_cv_mach_clock_get_time_monotonic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_monotonic" >&5
$as_echo "$erl_cv_mach_clock_get_time_monotonic" >&6; }

  erl_corrected_monotonic_clock=no
  case $erl_cv_clock_gettime_monotonic_high_resolution-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
    *-*-*-win32)
      erl_monotonic_clock_func=WindowsAPI
      ;;
    CLOCK_*-*-*-linux*)
      case $erl_cv_clock_gettime_monotonic_high_resolution-$erl_cv_clock_gettime_monotonic_raw in
        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
	  erl_corrected_monotonic_clock=yes
	  ;;
	*)
	  # We don't trust CLOCK_MONOTONIC to be NTP
	  # adjusted on linux systems that do not have
	  # CLOCK_MONOTONIC_RAW (although it seems to
	  # be...)
	  ;;
      esac
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-no-no-linux*)
      erl_monotonic_clock_func=times
      ;;
    CLOCK_*-*-*-*)
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-yes-*-*)
      erl_monotonic_clock_func=gethrtime
      ;;
    no-no-yes-*)
      erl_monotonic_clock_func=mach_clock_get_time
      ;;
    no-no-no-*)
      erl_monotonic_clock_func=none
      ;;
  esac

  erl_monotonic_clock_low_resolution=no
  erl_monotonic_clock_lib=
  erl_monotonic_clock_id=
  case $erl_monotonic_clock_func in
    clock_gettime)
      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_high_resolution
      for low_res_id in $low_resolution_clock_gettime_monotonic; do
      	  if test $erl_monotonic_clock_id = $low_res_id; then
	    erl_monotonic_clock_low_resolution=yes
	    break
	  fi
      done
      erl_monotonic_clock_lib=$clock_gettime_lib
      ;;
    mach_clock_get_time)
      erl_monotonic_clock_id=SYSTEM_CLOCK
      ;;
    times)
      erl_monotonic_clock_low_resolution=yes
      ;;
    *)
      ;;
  esac

;;
  low-no)

  # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
  # and Monterey, since it may step backwards.
  if test "$prefer_elapsed_monotonic_time_during_suspend" = "yes"; then
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW";;
          *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE";;
     esac
  else
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW";;
                *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_UPTIME_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_PRECISE";;
     esac
  fi

  case "low_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
    *)
	check_msg="custom "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)" >&5
$as_echo_n "checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)... " >&6; }
if ${erl_cv_clock_gettime_monotonic_raw+:} false; then :
  $as_echo_n "(cached) " >&6
else

       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_raw=yes
else
  erl_cv_clock_gettime_monotonic_raw=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_raw" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_raw" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}monotonic clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}monotonic clock type... " >&6; }
if ${erl_cv_clock_gettime_monotonic_low_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_low_resolution=$clock_type
else
  erl_cv_clock_gettime_monotonic_low_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_monotonic_low_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_low_resolution" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_low_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
    for ac_func in clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  else
    for ac_func in clock_getres clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  fi


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with monotonic clock type" >&5
$as_echo_n "checking for mach clock_get_time() with monotonic clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_monotonic+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_monotonic=yes
else
  erl_cv_mach_clock_get_time_monotonic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_monotonic" >&5
$as_echo "$erl_cv_mach_clock_get_time_monotonic" >&6; }

  erl_corrected_monotonic_clock=no
  case $erl_cv_clock_gettime_monotonic_low_resolution-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
    *-*-*-win32)
      erl_monotonic_clock_func=WindowsAPI
      ;;
    CLOCK_*-*-*-linux*)
      case $erl_cv_clock_gettime_monotonic_low_resolution-$erl_cv_clock_gettime_monotonic_raw in
        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
	  erl_corrected_monotonic_clock=yes
	  ;;
	*)
	  # We don't trust CLOCK_MONOTONIC to be NTP
	  # adjusted on linux systems that do not have
	  # CLOCK_MONOTONIC_RAW (although it seems to
	  # be...)
	  ;;
      esac
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-no-no-linux*)
      erl_monotonic_clock_func=times
      ;;
    CLOCK_*-*-*-*)
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-yes-*-*)
      erl_monotonic_clock_func=gethrtime
      ;;
    no-no-yes-*)
      erl_monotonic_clock_func=mach_clock_get_time
      ;;
    no-no-no-*)
      erl_monotonic_clock_func=none
      ;;
  esac

  erl_monotonic_clock_low_resolution=no
  erl_monotonic_clock_lib=
  erl_monotonic_clock_id=
  case $erl_monotonic_clock_func in
    clock_gettime)
      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_low_resolution
      for low_res_id in $low_resolution_clock_gettime_monotonic; do
      	  if test $erl_monotonic_clock_id = $low_res_id; then
	    erl_monotonic_clock_low_resolution=yes
	    break
	  fi
      done
      erl_monotonic_clock_lib=$clock_gettime_lib
      ;;
    mach_clock_get_time)
      erl_monotonic_clock_id=SYSTEM_CLOCK
      ;;
    times)
      erl_monotonic_clock_low_resolution=yes
      ;;
    *)
      ;;
  esac

;;
  default-no)

  # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
  # and Monterey, since it may step backwards.
  if test "$prefer_elapsed_monotonic_time_during_suspend" = "yes"; then
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW";;
          *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE";;
     esac
  else
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW";;
                *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_UPTIME_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_PRECISE";;
     esac
  fi

  case "default_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
    *)
	check_msg="custom "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)" >&5
$as_echo_n "checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)... " >&6; }
if ${erl_cv_clock_gettime_monotonic_raw+:} false; then :
  $as_echo_n "(cached) " >&6
else

       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_raw=yes
else
  erl_cv_clock_gettime_monotonic_raw=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_raw" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_raw" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}monotonic clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}monotonic clock type... " >&6; }
if ${erl_cv_clock_gettime_monotonic_default_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_default_resolution=$clock_type
else
  erl_cv_clock_gettime_monotonic_default_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_monotonic_default_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_default_resolution" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_default_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
    for ac_func in clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  else
    for ac_func in clock_getres clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  fi


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with monotonic clock type" >&5
$as_echo_n "checking for mach clock_get_time() with monotonic clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_monotonic+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_monotonic=yes
else
  erl_cv_mach_clock_get_time_monotonic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_monotonic" >&5
$as_echo "$erl_cv_mach_clock_get_time_monotonic" >&6; }

  erl_corrected_monotonic_clock=no
  case $erl_cv_clock_gettime_monotonic_default_resolution-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
    *-*-*-win32)
      erl_monotonic_clock_func=WindowsAPI
      ;;
    CLOCK_*-*-*-linux*)
      case $erl_cv_clock_gettime_monotonic_default_resolution-$erl_cv_clock_gettime_monotonic_raw in
        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
	  erl_corrected_monotonic_clock=yes
	  ;;
	*)
	  # We don't trust CLOCK_MONOTONIC to be NTP
	  # adjusted on linux systems that do not have
	  # CLOCK_MONOTONIC_RAW (although it seems to
	  # be...)
	  ;;
      esac
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-no-no-linux*)
      erl_monotonic_clock_func=times
      ;;
    CLOCK_*-*-*-*)
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-yes-*-*)
      erl_monotonic_clock_func=gethrtime
      ;;
    no-no-yes-*)
      erl_monotonic_clock_func=mach_clock_get_time
      ;;
    no-no-no-*)
      erl_monotonic_clock_func=none
      ;;
  esac

  erl_monotonic_clock_low_resolution=no
  erl_monotonic_clock_lib=
  erl_monotonic_clock_id=
  case $erl_monotonic_clock_func in
    clock_gettime)
      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_default_resolution
      for low_res_id in $low_resolution_clock_gettime_monotonic; do
      	  if test $erl_monotonic_clock_id = $low_res_id; then
	    erl_monotonic_clock_low_resolution=yes
	    break
	  fi
      done
      erl_monotonic_clock_lib=$clock_gettime_lib
      ;;
    mach_clock_get_time)
      erl_monotonic_clock_id=SYSTEM_CLOCK
      ;;
    times)
      erl_monotonic_clock_low_resolution=yes
      ;;
    *)
      ;;
  esac

;;
  *)

  # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
  # and Monterey, since it may step backwards.
  if test "$prefer_elapsed_monotonic_time_during_suspend" = "yes"; then
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW";;
          *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE";;
     esac
  else
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW";;
                *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_UPTIME_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_PRECISE";;
     esac
  fi

  case "custom_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_monotonic="$with_clock_gettime_monotonic_id"
	;;
    *)
	check_msg="custom "
	prefer_resolution_clock_gettime_monotonic="$with_clock_gettime_monotonic_id"
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)" >&5
$as_echo_n "checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)... " >&6; }
if ${erl_cv_clock_gettime_monotonic_raw+:} false; then :
  $as_echo_n "(cached) " >&6
else

       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_raw=yes
else
  erl_cv_clock_gettime_monotonic_raw=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_raw" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_raw" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}monotonic clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}monotonic clock type... " >&6; }
if ${erl_cv_clock_gettime_monotonic_custom_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_custom_resolution=$clock_type
else
  erl_cv_clock_gettime_monotonic_custom_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_monotonic_custom_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_custom_resolution" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_custom_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
    for ac_func in clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  else
    for ac_func in clock_getres clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  fi


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with monotonic clock type" >&5
$as_echo_n "checking for mach clock_get_time() with monotonic clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_monotonic+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_monotonic=yes
else
  erl_cv_mach_clock_get_time_monotonic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_monotonic" >&5
$as_echo "$erl_cv_mach_clock_get_time_monotonic" >&6; }

  erl_corrected_monotonic_clock=no
  case $erl_cv_clock_gettime_monotonic_custom_resolution-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
    *-*-*-win32)
      erl_monotonic_clock_func=WindowsAPI
      ;;
    CLOCK_*-*-*-linux*)
      case $erl_cv_clock_gettime_monotonic_custom_resolution-$erl_cv_clock_gettime_monotonic_raw in
        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
	  erl_corrected_monotonic_clock=yes
	  ;;
	*)
	  # We don't trust CLOCK_MONOTONIC to be NTP
	  # adjusted on linux systems that do not have
	  # CLOCK_MONOTONIC_RAW (although it seems to
	  # be...)
	  ;;
      esac
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-no-no-linux*)
      erl_monotonic_clock_func=times
      ;;
    CLOCK_*-*-*-*)
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-yes-*-*)
      erl_monotonic_clock_func=gethrtime
      ;;
    no-no-yes-*)
      erl_monotonic_clock_func=mach_clock_get_time
      ;;
    no-no-no-*)
      erl_monotonic_clock_func=none
      ;;
  esac

  erl_monotonic_clock_low_resolution=no
  erl_monotonic_clock_lib=
  erl_monotonic_clock_id=
  case $erl_monotonic_clock_func in
    clock_gettime)
      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_custom_resolution
      for low_res_id in $low_resolution_clock_gettime_monotonic; do
      	  if test $erl_monotonic_clock_id = $low_res_id; then
	    erl_monotonic_clock_low_resolution=yes
	    break
	  fi
      done
      erl_monotonic_clock_lib=$clock_gettime_lib
      ;;
    mach_clock_get_time)
      erl_monotonic_clock_id=SYSTEM_CLOCK
      ;;
    times)
      erl_monotonic_clock_low_resolution=yes
      ;;
    *)
      ;;
  esac

;;
esac

case "$erl_monotonic_clock_func-$erl_monotonic_clock_id-$with_clock_gettime_monotonic_id" in
  *-*-no)
    ;;
  clock_gettime-$with_clock_gettime_monotonic_id-$with_clock_gettime_monotonic_id)
    ;;
  *)
    as_fn_error $? "$with_clock_gettime_monotonic_id as clock id to clock_gettime() doesn't compile" "$LINENO" 5
    ;;
esac

case $erl_monotonic_clock_func in
  times)

$as_echo "#define OS_MONOTONIC_TIME_USING_TIMES 1" >>confdefs.h

    ;;
  mach_clock_get_time)

$as_echo "#define OS_MONOTONIC_TIME_USING_MACH_CLOCK_GET_TIME 1" >>confdefs.h

    ;;
  clock_gettime)

$as_echo "#define OS_MONOTONIC_TIME_USING_CLOCK_GETTIME 1" >>confdefs.h

    ;;
  gethrtime)

$as_echo "#define OS_MONOTONIC_TIME_USING_GETHRTIME 1" >>confdefs.h

    ;;
  *)
    ;;
esac

if test $erl_corrected_monotonic_clock = yes; then

$as_echo "#define ERTS_HAVE_CORRECTED_OS_MONOTONIC_TIME 1" >>confdefs.h

fi

if test $erl_monotonic_clock_low_resolution = yes; then

$as_echo "#define ERTS_HAVE_LOW_RESOLUTION_OS_MONOTONIC_LOW 1" >>confdefs.h

fi

xrtlib=
if test "$erl_monotonic_clock_lib" != ""; then
   xrtlib="$erl_monotonic_clock_lib"
fi
if test "$erl_wall_clock_lib" != ""; then
   xrtlib="$erl_wall_clock_lib"
fi
if test "x$erl_monotonic_clock_id" != "x"; then

cat >>confdefs.h <<_ACEOF
#define MONOTONIC_CLOCK_ID_STR "$erl_monotonic_clock_id"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define MONOTONIC_CLOCK_ID $erl_monotonic_clock_id
_ACEOF

fi

if test $erl_cv_clock_gettime_monotonic_raw = yes; then

$as_echo "#define HAVE_CLOCK_GETTIME_MONOTONIC_RAW 1" >>confdefs.h

fi


  # CLOCK_MONOTONIC is buggy on MacOS (darwin), or at least on Big Sur
  # and Monterey, since it may step backwards.
  if test "no" = "yes"; then
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_RAW";;
          *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_BOOTTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_PRECISE";;
     esac
  else
     case $host_os in
          darwin*)
                default_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW"
                low_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW_APPROX"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_RAW";;
                *)
                default_resolution_clock_gettime_monotonic="CLOCK_HIGHRES CLOCK_UPTIME CLOCK_MONOTONIC"
                low_resolution_clock_gettime_monotonic="CLOCK_MONOTONIC_COARSE CLOCK_UPTIME_FAST"
                high_resolution_clock_gettime_monotonic="CLOCK_UPTIME_PRECISE";;
     esac
  fi

  case "high_resolution" in
    high_resolution)
	check_msg="high resolution "
	prefer_resolution_clock_gettime_monotonic="$high_resolution_clock_gettime_monotonic"
	;;
    low_resolution)
	check_msg="low resolution "
	prefer_resolution_clock_gettime_monotonic="$low_resolution_clock_gettime_monotonic"
	;;
    custom_resolution)
	check_msg="custom resolution "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
    *)
	check_msg="custom "
	prefer_resolution_clock_gettime_monotonic="undefined"
	;;
  esac

  clock_gettime_lib=""
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime in -lrt" >&5
$as_echo_n "checking for clock_gettime in -lrt... " >&6; }
if ${ac_cv_lib_rt_clock_gettime+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lrt  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char clock_gettime ();
int
main ()
{
return clock_gettime ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_rt_clock_gettime=yes
else
  ac_cv_lib_rt_clock_gettime=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_clock_gettime" >&5
$as_echo "$ac_cv_lib_rt_clock_gettime" >&6; }
if test "x$ac_cv_lib_rt_clock_gettime" = xyes; then :
  clock_gettime_lib="-lrt"
fi


  save_LIBS="$LIBS"
  LIBS="$LIBS $clock_gettime_lib"

  if test "$LD_MAY_BE_WEAK" != "no"; then
     trust_test="#error May not be there due to weak linking"
  else
     trust_test=""
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)" >&5
$as_echo_n "checking for clock_gettime(CLOCK_MONOTONIC_RAW, _)... " >&6; }
if ${erl_cv_clock_gettime_monotonic_raw+:} false; then :
  $as_echo_n "(cached) " >&6
else

       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_raw=yes
else
  erl_cv_clock_gettime_monotonic_raw=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_raw" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_raw" >&6; }

  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for clock_gettime() with ${check_msg}monotonic clock type" >&5
$as_echo_n "checking for clock_gettime() with ${check_msg}monotonic clock type... " >&6; }
if ${erl_cv_clock_gettime_monotonic_high_resolution+:} false; then :
  $as_echo_n "(cached) " >&6
else

     for clock_type in $prefer_resolution_clock_gettime_monotonic $default_resolution_clock_gettime_monotonic $high_resolution_clock_gettime_monotonic $low_resolution_clock_gettime_monotonic; do
       cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <time.h>
$trust_test

int
main ()
{

    struct timespec ts;
    long long result;
    clock_gettime($clock_type,&ts);
    result = ((long long) ts.tv_sec) * 1000000000LL +
    ((long long) ts.tv_nsec);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  erl_cv_clock_gettime_monotonic_high_resolution=$clock_type
else
  erl_cv_clock_gettime_monotonic_high_resolution=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
       test $erl_cv_clock_gettime_monotonic_high_resolution = no || break
     done

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_clock_gettime_monotonic_high_resolution" >&5
$as_echo "$erl_cv_clock_gettime_monotonic_high_resolution" >&6; }

  LIBS="$save_LIBS"

  if test "$LD_MAY_BE_WEAK" != "no"; then
    for ac_func in clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  else
    for ac_func in clock_getres clock_get_attributes gethrtime
do :
  as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
  cat >>confdefs.h <<_ACEOF
#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF

fi
done

  fi


  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for mach clock_get_time() with monotonic clock type" >&5
$as_echo_n "checking for mach clock_get_time() with monotonic clock type... " >&6; }
if ${erl_cv_mach_clock_get_time_monotonic+:} false; then :
  $as_echo_n "(cached) " >&6
else

     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <mach/clock.h>
#include <mach/mach.h>

int
main ()
{

    kern_return_t res;
    clock_serv_t clk_srv;
    mach_timespec_t time_spec;

    host_get_clock_service(mach_host_self(), SYSTEM_CLOCK, &clk_srv);
    res = clock_get_time(clk_srv, &time_spec);
    mach_port_deallocate(mach_task_self(), clk_srv);

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  erl_cv_mach_clock_get_time_monotonic=yes
else
  erl_cv_mach_clock_get_time_monotonic=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_cv_mach_clock_get_time_monotonic" >&5
$as_echo "$erl_cv_mach_clock_get_time_monotonic" >&6; }

  erl_corrected_monotonic_clock=no
  case $erl_cv_clock_gettime_monotonic_high_resolution-$ac_cv_func_gethrtime-$erl_cv_mach_clock_get_time_monotonic-$host_os in
    *-*-*-win32)
      erl_monotonic_clock_func=WindowsAPI
      ;;
    CLOCK_*-*-*-linux*)
      case $erl_cv_clock_gettime_monotonic_high_resolution-$erl_cv_clock_gettime_monotonic_raw in
        CLOCK_BOOTTIME-yes|CLOCK_MONOTONIC-yes)
	  erl_corrected_monotonic_clock=yes
	  ;;
	*)
	  # We don't trust CLOCK_MONOTONIC to be NTP
	  # adjusted on linux systems that do not have
	  # CLOCK_MONOTONIC_RAW (although it seems to
	  # be...)
	  ;;
      esac
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-no-no-linux*)
      erl_monotonic_clock_func=times
      ;;
    CLOCK_*-*-*-*)
      erl_monotonic_clock_func=clock_gettime
      ;;
    no-yes-*-*)
      erl_monotonic_clock_func=gethrtime
      ;;
    no-no-yes-*)
      erl_monotonic_clock_func=mach_clock_get_time
      ;;
    no-no-no-*)
      erl_monotonic_clock_func=none
      ;;
  esac

  erl_monotonic_clock_low_resolution=no
  erl_monotonic_clock_lib=
  erl_monotonic_clock_id=
  case $erl_monotonic_clock_func in
    clock_gettime)
      erl_monotonic_clock_id=$erl_cv_clock_gettime_monotonic_high_resolution
      for low_res_id in $low_resolution_clock_gettime_monotonic; do
      	  if test $erl_monotonic_clock_id = $low_res_id; then
	    erl_monotonic_clock_low_resolution=yes
	    break
	  fi
      done
      erl_monotonic_clock_lib=$clock_gettime_lib
      ;;
    mach_clock_get_time)
      erl_monotonic_clock_id=SYSTEM_CLOCK
      ;;
    times)
      erl_monotonic_clock_low_resolution=yes
      ;;
    *)
      ;;
  esac



case $erl_monotonic_clock_low_resolution-$erl_monotonic_clock_func in
  no-mach_clock_get_time)
    monotonic_hrtime=yes

$as_echo "#define SYS_HRTIME_USING_MACH_CLOCK_GET_TIME 1" >>confdefs.h

    ;;
  no-clock_gettime)
    monotonic_hrtime=yes

$as_echo "#define SYS_HRTIME_USING_CLOCK_GETTIME 1" >>confdefs.h

    ;;
  no-gethrtime)
    monotonic_hrtime=yes

$as_echo "#define SYS_HRTIME_USING_GETHRTIME 1" >>confdefs.h

    ;;
  *)
    monotonic_hrtime=no
    ;;
esac

if test $monotonic_hrtime = yes; then

$as_echo "#define HAVE_MONOTONIC_ERTS_SYS_HRTIME 1" >>confdefs.h

fi

if test "x$erl_monotonic_clock_id" != "x"; then

cat >>confdefs.h <<_ACEOF
#define HRTIME_CLOCK_ID_STR "$erl_monotonic_clock_id"
_ACEOF


cat >>confdefs.h <<_ACEOF
#define HRTIME_CLOCK_ID $erl_monotonic_clock_id
_ACEOF

fi



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if gethrvtime works and how to use it" >&5
$as_echo_n "checking if gethrvtime works and how to use it... " >&6; }
if test "$cross_compiling" = yes; then :

case X$erl_xcomp_gethrvtime_procfs_ioctl in
    X)
	erl_gethrvtime=cross;;
    Xyes|Xno)
	if test $erl_xcomp_gethrvtime_procfs_ioctl = yes; then
	    erl_gethrvtime=procfs_ioctl
	else
	    erl_gethrvtime=false
	fi;;
    *)
	as_fn_error $? "Bad erl_xcomp_gethrvtime_procfs_ioctl value: $erl_xcomp_gethrvtime_procfs_ioctl" "$LINENO" 5;;
esac

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* gethrvtime procfs ioctl test */
/* These need to be undef:ed to not break activation of
 * micro level process accounting on /proc/self
 */
#ifdef _LARGEFILE_SOURCE
#  undef _LARGEFILE_SOURCE
#endif
#ifdef _FILE_OFFSET_BITS
#  undef _FILE_OFFSET_BITS
#endif
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <stdio.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/signal.h>
#include <sys/fault.h>
#include <sys/syscall.h>
#include <sys/procfs.h>
#include <fcntl.h>

int main() {
    long msacct = PR_MSACCT;
    int fd;
    long long start, stop;
    int i;
    pid_t pid = getpid();
    char proc_self[30] = "/proc/";

    sprintf(proc_self+strlen(proc_self), "%lu", (unsigned long) pid);
    if ( (fd = open(proc_self, O_WRONLY)) == -1)
	exit(1);
    if (ioctl(fd, PIOCSET, &msacct) < 0)
	exit(2);
    if (close(fd) < 0)
	exit(3);
    start = gethrvtime();
    for (i = 0; i < 100; i++)
	stop = gethrvtime();
    if (start == 0)
	exit(4);
    if (start == stop)
	exit(5);
    exit(0); return 0;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  erl_gethrvtime=procfs_ioctl
else
  erl_gethrvtime=false
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


LIBRT=$xrtlib
case $erl_gethrvtime in
  procfs_ioctl)

$as_echo "#define HAVE_GETHRVTIME_PROCFS_IOCTL 1" >>confdefs.h

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: uses ioctl to procfs" >&5
$as_echo "uses ioctl to procfs" >&6; }
	;;
  *)
	if test $erl_gethrvtime = cross; then
	    erl_gethrvtime=false
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: cross" >&5
$as_echo "cross" >&6; }
	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result 'not working' guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result 'not working' guessed because of cross compilation" >&2;}
	else
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: not working" >&5
$as_echo "not working" >&6; }
	fi


	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if clock_gettime can be used to get thread CPU time" >&5
$as_echo_n "checking if clock_gettime can be used to get thread CPU time... " >&6; }
	save_libs=$LIBS
	LIBS="-lrt"
	if test "$cross_compiling" = yes; then :

	case X$erl_xcomp_clock_gettime_cpu_time in
	    X) erl_clock_gettime_cpu_time=cross;;
	    Xyes|Xno) erl_clock_gettime_cpu_time=$erl_xcomp_clock_gettime_cpu_time;;
	    *) as_fn_error $? "Bad erl_xcomp_clock_gettime_cpu_time value: $erl_xcomp_clock_gettime_cpu_time" "$LINENO" 5;;
	esac

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

	#include <stdlib.h>
	#include <unistd.h>
	#include <string.h>
	#include <stdio.h>
	#include <time.h>
	int main() {
	    long long start, stop;
	    int i;
	    struct timespec tp;

	    if (clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp) < 0)
	      exit(1);
	    start = ((long long)tp.tv_sec * 1000000000LL) + (long long)tp.tv_nsec;
	    for (i = 0; i < 100; i++)
	      clock_gettime(CLOCK_THREAD_CPUTIME_ID, &tp);
	    stop = ((long long)tp.tv_sec * 1000000000LL) + (long long)tp.tv_nsec;
	    if (start == 0)
	      exit(4);
	    if (start == stop)
	      exit(5);
	    exit(0); return 0;
	  }

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  erl_clock_gettime_cpu_time=yes
else
  erl_clock_gettime_cpu_time=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi

	LIBS=$save_libs
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $erl_clock_gettime_cpu_time" >&5
$as_echo "$erl_clock_gettime_cpu_time" >&6; }
	case $erl_clock_gettime_cpu_time in
		yes)

$as_echo "#define HAVE_CLOCK_GETTIME_CPU_TIME /**/" >>confdefs.h

			LIBRT=-lrt
			;;
		cross)
			erl_clock_gettime_cpu_time=no
			{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result no guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result no guessed because of cross compilation" >&2;}
			;;
		*)
			;;
	esac
	;;
esac


# Extract the first word of "m4", so it can be a program name with args.
set dummy m4; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_M4+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$M4"; then
  ac_cv_prog_M4="$M4" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_M4="m4"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
M4=$ac_cv_prog_M4
if test -n "$M4"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $M4" >&5
$as_echo "$M4" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi




JIT_ARCH=
if test ${enable_jit} != no; then
   case "$ARCH" in
        amd64)
           JIT_ARCH=x86
           ;;
        *)
           if test ${enable_jit} = yes; then
             as_fn_error $? "JIT only works on x86 64-bit" "$LINENO" 5
           else
             enable_jit=no
             { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: JIT disabled due to lack to support on $ARCH-$OPSYS" >&5
$as_echo "$as_me: WARNING: JIT disabled due to lack to support on $ARCH-$OPSYS" >&2;}
           fi
           ;;
   esac

   if test ${enable_jit} != no; then
       if test "$CXX" != false; then
          ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu

          old_CXXFLAGS=$CXXFLAGS
          CXXFLAGS="$CXXFLAGS -std=c++17"
          ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
if test -z "$CXX"; then
  if test -n "$CCC"; then
    CXX=$CCC
  else
    if test -n "$ac_tool_prefix"; then
  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
$as_echo "$CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
$as_echo "$ac_ct_CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CXX" && break
done

  if test "x$ac_ct_CXX" = x; then
    CXX="g++"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CXX=$ac_ct_CXX
  fi
fi

  fi
fi
# Provide some information about the compiler.
$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
set X $ac_compile
ac_compiler=$2
for ac_option in --version -v -V -qversion; do
  { { ac_try="$ac_compiler $ac_option >&5"
case "(($ac_try" in
  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
  *) ac_try_echo=$ac_try;;
esac
eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
$as_echo "$ac_try_echo"; } >&5
  (eval "$ac_compiler $ac_option >&5") 2>conftest.err
  ac_status=$?
  if test -s conftest.err; then
    sed '10a\
... rest of stderr output deleted ...
         10q' conftest.err >conftest.er1
    cat conftest.er1 >&5
  fi
  rm -f conftest.er1 conftest.err
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; }
done

{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
if ${ac_cv_cxx_compiler_gnu+:} false; then :
  $as_echo_n "(cached) " >&6
else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#ifndef __GNUC__
       choke me
#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_compiler_gnu=yes
else
  ac_compiler_gnu=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_cv_cxx_compiler_gnu=$ac_compiler_gnu

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
if test $ac_compiler_gnu = yes; then
  GXX=yes
else
  GXX=
fi
ac_test_CXXFLAGS=${CXXFLAGS+set}
ac_save_CXXFLAGS=$CXXFLAGS
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
$as_echo_n "checking whether $CXX accepts -g... " >&6; }
if ${ac_cv_prog_cxx_g+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_save_cxx_werror_flag=$ac_cxx_werror_flag
   ac_cxx_werror_flag=yes
   ac_cv_prog_cxx_g=no
   CXXFLAGS="-g"
   cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_prog_cxx_g=yes
else
  CXXFLAGS=""
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :

else
  ac_cxx_werror_flag=$ac_save_cxx_werror_flag
	 CXXFLAGS="-g"
	 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  ac_cv_prog_cxx_g=yes
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
   ac_cxx_werror_flag=$ac_save_cxx_werror_flag
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
$as_echo "$ac_cv_prog_cxx_g" >&6; }
if test "$ac_test_CXXFLAGS" = set; then
  CXXFLAGS=$ac_save_CXXFLAGS
elif test $ac_cv_prog_cxx_g = yes; then
  if test "$GXX" = yes; then
    CXXFLAGS="-g -O2"
  else
    CXXFLAGS="-g"
  fi
else
  if test "$GXX" = yes; then
    CXXFLAGS="-O2"
  else
    CXXFLAGS=
  fi
fi
ac_ext=cpp
ac_cpp='$CXXCPP $CPPFLAGS'
ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_cxx_compiler_gnu


cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
#if __cplusplus < 201703L
                #error "Needs C++17 compiler"
                #endif
  ;
  return 0;
}
_ACEOF
if ac_fn_cxx_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C++17 support" >&5
$as_echo_n "checking for C++17 support... " >&6; }
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
               HAVE_CXX17=true
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for C++17 support" >&5
$as_echo_n "checking for C++17 support... " >&6; }
               { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
               HAVE_CXX17=false
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
          ac_ext=c
ac_cpp='$CPP $CPPFLAGS'
ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
ac_compiler_gnu=$ac_cv_c_compiler_gnu

       fi
       if test "$CXX" = false -o "$HAVE_CXX17" = false; then
         if test ${enable_jit} = yes; then
           as_fn_error $? "JIT needs a C++ compiler with C++17 support" "$LINENO" 5
         else
           enable_jit=no
           cat >> $ERL_TOP/erts/CONF_INFO <<EOF

                 JIT disabled due to lack of compiler with C++17 support
EOF
           { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: JIT disable due to lack of C++ compiler with C++17 support" >&5
$as_echo "$as_me: WARNING: JIT disable due to lack of C++ compiler with C++17 support" >&2;}
        fi
     fi
   fi

   if test ${enable_jit} != no; then
     enable_jit=yes
   fi
fi

if test ${enable_jit} != no; then
  case $host_os in
    openbsd*)
      # Whenever the kernel is entered (page faults, system calls, etc),
      # OpenBSD checks whether the stack pointer is in an area allocated with
      # MAP_STACK, so we can't use the native stack for Erlang code.
      #
      # https://undeadly.org/cgi?action=article;sid=20180310000858
      enable_native_stack=no;;
    win32*)
      # Windows never messes with the stack, so it's safe by default.
      enable_native_stack=yes;;
    *)
      # Use the native stack if we can safely redirect OS signals to a
      # different stack.
      { $as_echo "$as_me:${as_lineno-$LINENO}: checking for safe signal delivery" >&5
$as_echo_n "checking for safe signal delivery... " >&6; }
      cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <signal.h>
int
main ()
{
#if defined(__APPLE__) && defined(__MACH__) && !defined(__DARWIN__)
         #define __DARWIN__ 1
         #endif
         #if !(defined(__GLIBC__) || defined(__DARWIN__) || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__sun__))
         #error "Unknown libc. Assume musl, which does not allow safe signals"
         #endif
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
         enable_native_stack=yes
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, disabling native stack in JIT" >&5
$as_echo "no, disabling native stack in JIT" >&6; }
         enable_native_stack=no

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext;;
  esac

  if test X${enable_native_stack} = Xyes; then

$as_echo "#define NATIVE_ERLANG_STACK /**/" >>confdefs.h

  fi
fi

case $OPSYS in
    linux*)

$as_echo "#define HAVE_LINUX_PERF_SUPPORT 1" >>confdefs.h

        ;;
    *)
        ;;
esac


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to redefine FD_SETSIZE" >&5
$as_echo_n "checking whether to redefine FD_SETSIZE... " >&6; }
case $host_os in
  bsdi*)

$as_echo "#define REDEFINE_FD_SETSIZE /**/" >>confdefs.h

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
	;;
  *)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
	;;
esac




JIT_ENABLED=
FLAVORS="emu jit"
# Enable jit
if test X${enable_jit} = Xyes; then
     JIT_ENABLED=yes
     PRIMARY_FLAVOR=jit
else
     PRIMARY_FLAVOR=emu
fi






#
# Check for working poll().
#
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for working poll()" >&5
$as_echo_n "checking for working poll()... " >&6; }
if test "x$ac_cv_header_poll_h" != "xyes" -o "x$ac_cv_func_poll" != "xyes"; then

poll_works=no

else

if test "$cross_compiling" = yes; then :

case X$erl_xcomp_poll in
    X) poll_works=cross;;
    Xyes|Xno) poll_works=$erl_xcomp_poll;;
    *) as_fn_error $? "Bad erl_xcomp_poll value: $erl_xcomp_poll" "$LINENO" 5;;
esac

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <poll.h>
main()
{
#ifdef _POLL_EMUL_H_
  exit(1); /* Implemented using select() -- fail */
#else
  struct pollfd fds[1];
  int fd;
  fd = open("/dev/null", 1);
  fds[0].fd = fd;
  fds[0].events = POLLIN;
  fds[0].revents = 0;
  if (poll(fds, 1, 0) < 0 || (fds[0].revents & POLLNVAL) != 0) {
    exit(1);  /* Does not work for devices -- fail */
  }
  exit(0);
#endif
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  poll_works=yes
else
  poll_works=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


fi

case $poll_works-$host_os in
    no-*|cross-darwin*)
	#
	# The USE_SELECT define is used by the ssl application (should not
	# be used by erts).
	#

$as_echo "#define USE_SELECT 1" >>confdefs.h

	if test $poll_works = cross; then
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: cross" >&5
$as_echo "cross" >&6; }
	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result no guessed based on OS ($host_os) because of cross compilation" >&5
$as_echo "$as_me: WARNING: result no guessed based on OS ($host_os) because of cross compilation" >&2;}
	else
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: no; non-existing, broken, or based on select()" >&5
$as_echo "no; non-existing, broken, or based on select()" >&6; }
        fi
	poll_works=no;;
    yes-*|cross-*)

$as_echo "#define ERTS_USE_POLL 1" >>confdefs.h

	if test $poll_works = cross; then
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: cross" >&5
$as_echo "cross" >&6; }
	    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result yes guessed based on OS ($host_os) because of cross compilation" >&5
$as_echo "$as_me: WARNING: result yes guessed based on OS ($host_os) because of cross compilation" >&2;}
	else
	    { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
        fi
	poll_works=yes;;
esac

#
# If kqueue() found
#
if test $have_kernel_poll = kqueue; then
## Some OS X kernel version seems to have bugs in them with regards to kqueue
## Disable kernel poll on those versions
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether host os has known kqueue bugs" >&5
$as_echo_n "checking whether host os has known kqueue bugs... " >&6; }
   case $host_os in
     # Any OS X version < 16 has known problems with using kqueue
     # so we don't use it there. See erl_poll.c for details.
     darwin[0-9].*|darwin1[0-5].*)
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes, disabling kernel poll" >&5
$as_echo "yes, disabling kernel poll" >&6; }
        have_kernel_poll=no
        ;;
     *)
        { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
        ;;
   esac
fi
#
# If epoll() found, check that it is level triggered.
#
if test $have_kernel_poll = epoll; then
	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether epoll is level triggered" >&5
$as_echo_n "checking whether epoll is level triggered... " >&6; }
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <sys/epoll.h>
int
main ()
{

			#ifdef EPOLLET
			/* Edge triggered option exist, assume level triggered
			   is default */
			;
			#else
			/* No edge triggered option exist; assume edge
			   triggered only */
			#error No EPOLLET
			#endif

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  level_triggered_epoll=yes
else
  level_triggered_epoll=no
			 have_kernel_poll=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $level_triggered_epoll" >&5
$as_echo "$level_triggered_epoll" >&6; }
fi
#
# Check if we should enable kernel poll support
#
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether kernel poll support should be enabled" >&5
$as_echo_n "checking whether kernel poll support should be enabled... " >&6; }
ERTS_ENABLE_KERNEL_POLL=no
ERTS_BUILD_FALLBACK_POLL=no
case $enable_kernel_poll-$have_kernel_poll in
    no-*)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no; disabled by user" >&5
$as_echo "no; disabled by user" >&6; };;
    yes-no)
	as_fn_error $? "no; kernel poll support requested but not found" "$LINENO" 5;;
    *-no)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; };;
    *)
	case $have_kernel_poll in
	    epoll)

$as_echo "#define HAVE_SYS_EPOLL_H 1" >>confdefs.h

                ERTS_BUILD_FALLBACK_POLL=yes
                ;;
	    /dev/poll)

$as_echo "#define HAVE_SYS_DEVPOLL_H 1" >>confdefs.h

                ;;
	    kqueue)

$as_echo "#define HAVE_SYS_EVENT_H 1" >>confdefs.h

                ERTS_BUILD_FALLBACK_POLL=yes
                ;;
	    *)
		as_fn_error $? "configure.in need to be updated" "$LINENO" 5;;
	esac
	ERTS_ENABLE_KERNEL_POLL=yes

$as_echo "#define ERTS_ENABLE_KERNEL_POLL 1" >>confdefs.h

	{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes; $have_kernel_poll" >&5
$as_echo "yes; $have_kernel_poll" >&6; };;
esac


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether putenv() stores a copy of the key-value pair" >&5
$as_echo_n "checking whether putenv() stores a copy of the key-value pair... " >&6; }
if test "$cross_compiling" = yes; then :

case X$erl_xcomp_putenv_copy in
    X) copying_putenv=cross;;
    Xyes|Xno) copying_putenv=$erl_xcomp_putenv_copy;;
    *) as_fn_error $? "Bad erl_xcomp_putenv_copy value: $erl_xcomp_putenv_copy" "$LINENO" 5;;
esac

else
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

#include <stdlib.h>
int main(void) {
    int i;
    char *env;
    char buf[10];
    for (i = 0; i < 7; i++)
	buf[i] = 'X';
    buf[i] = '\0';
    buf[3] = '=';
    if (putenv(buf) != 0)
	return 1;
    for (i = 4; i < 7; i++)
	buf[i] = 'Y';
    env = getenv("XXX");
    if (!env)
	return 2;
    for (i = 0; i < 3; i++)
	if (env[i] != 'X')
	    return 3;
    for (i = 0; i < 3; i++)
	buf[i] = 'Y';
    env = getenv("XXX");
    if (!env)
	return 4;
    for (i = 0; i < 3; i++)
	if (env[i] != 'X')
	    return 5;
    return 0;
}

_ACEOF
if ac_fn_c_try_run "$LINENO"; then :
  copying_putenv=yes
else
  copying_putenv=no
fi
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
  conftest.$ac_objext conftest.beam conftest.$ac_ext
fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $copying_putenv" >&5
$as_echo "$copying_putenv" >&6; }
case $copying_putenv in
    yes)

$as_echo "#define HAVE_COPYING_PUTENV 1" >>confdefs.h
;;
    cross)
	{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: result no guessed because of cross compilation" >&5
$as_echo "$as_me: WARNING: result no guessed because of cross compilation" >&2;};;
    *) ;;
esac



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a compiler that handles jumptables" >&5
$as_echo_n "checking for a compiler that handles jumptables... " >&6; }
if ${ac_cv_prog_emu_cc+:} false; then :
  $as_echo_n "(cached) " >&6
else

cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

#if defined(__clang_major__) && __clang_major__ >= 3
    /* clang 3.x or later is fine */
#elif defined(__llvm__)
#error "this version of llvm is unable to correctly compile beam_emu.c"
#endif
    __label__ lbl1;
    __label__ lbl2;
    extern int magic(void);
    int x = magic();
    static void *jtab[2];

    jtab[0] = &&lbl1;
    jtab[1] = &&lbl2;
    goto *jtab[x];
lbl1:
    return 1;
lbl2:
    return 2;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_emu_cc="$CC"
else
  ac_cv_prog_emu_cc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext

if test "$ac_cv_prog_emu_cc" = no; then
	for ac_progname in emu_cc.sh gcc-4.2 gcc; do
  		IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
  		ac_dummy="$PATH"
  		for ac_dir in $ac_dummy; do
    			test -z "$ac_dir" && ac_dir=.
    			if test -f "$ac_dir/$ac_progname"; then
      				ac_cv_prog_emu_cc="$ac_dir/$ac_progname"
      				break
    			fi
  		done
  		IFS="$ac_save_ifs"
		if test "$ac_cv_prog_emu_cc" != no; then
			break
		fi
	done
fi

if test "$ac_cv_prog_emu_cc" != no; then
	save_CC="$CC"
	save_CFLAGS=$CFLAGS
	save_CPPFLAGS=$CPPFLAGS
	CC="$ac_cv_prog_emu_cc"
	CFLAGS=""
	CPPFLAGS=""
	cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{

#if defined(__clang_major__) && __clang_major__ >= 3
    /* clang 3.x or later is fine */
#elif defined(__llvm__)
#error "this version of llvm is unable to correctly compile beam_emu.c"
#endif
    	__label__ lbl1;
    	__label__ lbl2;
	extern int magic(void);
    	int x = magic();
    	static void *jtab[2];

    	jtab[0] = &&lbl1;
    	jtab[1] = &&lbl2;
    	goto *jtab[x];
	lbl1:
    	return 1;
	lbl2:
    	return 2;

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  ac_cv_prog_emu_cc="$CC"
else
  ac_cv_prog_emu_cc=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
	CC=$save_CC
	CFLAGS=$save_CFLAGS
	CPPFLAGS=$save_CPPFLAGS
fi

fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_emu_cc" >&5
$as_echo "$ac_cv_prog_emu_cc" >&6; }
if test "$ac_cv_prog_emu_cc" = no; then

$as_echo "#define NO_JUMP_TABLE /**/" >>confdefs.h

	EMU_CC="$CC"
else
	EMU_CC="$ac_cv_prog_emu_cc"
fi



case $DYNAMIC_TRACE_FRAMEWORK in
     dtrace|systemtap)
        if test -n "$ac_tool_prefix"; then
  # Extract the first word of "${ac_tool_prefix}dtrace", so it can be a program name with args.
set dummy ${ac_tool_prefix}dtrace; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_DTRACE+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$DTRACE"; then
  ac_cv_prog_DTRACE="$DTRACE" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_DTRACE="${ac_tool_prefix}dtrace"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
DTRACE=$ac_cv_prog_DTRACE
if test -n "$DTRACE"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DTRACE" >&5
$as_echo "$DTRACE" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


fi
if test -z "$ac_cv_prog_DTRACE"; then
  ac_ct_DTRACE=$DTRACE
  # Extract the first word of "dtrace", so it can be a program name with args.
set dummy dtrace; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_DTRACE+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_DTRACE"; then
  ac_cv_prog_ac_ct_DTRACE="$ac_ct_DTRACE" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_DTRACE="dtrace"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_DTRACE=$ac_cv_prog_ac_ct_DTRACE
if test -n "$ac_ct_DTRACE"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DTRACE" >&5
$as_echo "$ac_ct_DTRACE" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

  if test "x$ac_ct_DTRACE" = x; then
    DTRACE="none"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    DTRACE=$ac_ct_DTRACE
  fi
else
  DTRACE="$ac_cv_prog_DTRACE"
fi

        test "$DTRACE" = "none" && as_fn_error $? "No dtrace utility found." "$LINENO" 5;
        enable_lttng_test=no
	enable_dtrace_test=yes;;
     lttng)
        enable_lttng_test=yes
        enable_dtrace_test=no;;
     *)
        enable_lttng_test=no
        enable_dtrace_test=no;;
esac






DTRACE_CPP=-C
DTRACE_ENABLED=
DTRACE_ENABLED_2STEP=
DTRACE_2STEP_TEST=./dtrace-test.o
DTRACE_BITS_FLAG=
case $OPSYS in
    freebsd)
	if test "$BITS64" = "yes" ; then
		DTRACE_BITS_FLAG=-64
	else
		DTRACE_BITS_FLAG=-32
	fi
    ;;
    *)
	: # Nothing to do
    ;;
esac
if test "$enable_dtrace_test" = "yes" ; then
        if test "$DTRACE" = "dtrace" ; then
                for ac_header in sys/sdt.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "sys/sdt.h" "ac_cv_header_sys_sdt_h" "$ac_includes_default"
if test "x$ac_cv_header_sys_sdt_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_SYS_SDT_H 1
_ACEOF

fi

done

		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 1-stage DTrace precompilation" >&5
$as_echo_n "checking for 1-stage DTrace precompilation... " >&6; }
                # The OS X version of dtrace prints a spurious line here.
                if ! dtrace -h $DTRACE_CPP -Iemulator/beam -o ./foo-dtrace.h -s emulator/beam/erlang_dtrace.d; then
                        as_fn_error $? "Could not precompile erlang_dtrace.d: dtrace -h failed" "$LINENO" 5
                fi
		{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }

		{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for 2-stage DTrace precompilation" >&5
$as_echo_n "checking for 2-stage DTrace precompilation... " >&6; }
                cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
 #include "foo-dtrace.h"
int
main ()
{
ERLANG_DIST_PORT_BUSY_ENABLED();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  rm -f $DTRACE_2STEP_TEST
		     dtrace -G $DTRACE_CPP $DTRACE_BITS_FLAG -Iemulator/beam -o $DTRACE_2STEP_TEST -s emulator/beam/erlang_dtrace.d conftest.$OBJEXT 2>&5
                     if test -f $DTRACE_2STEP_TEST; then
			rm -f $DTRACE_2STEP_TEST
                        DTRACE_ENABLED_2STEP=yes
		     fi
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
		rm -f foo-dtrace.h
		if test "x$DTRACE_ENABLED_2STEP" = "xyes"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi

                DTRACE_ENABLED=yes
                case $OPSYS in
                    linux)
                        : # No extra libs to add to LIBS
                    ;;
                    freebsd)
                        LIBS="$LIBS -lelf"
                    ;;
                    *)
                        LIBS="$LIBS -ldtrace"
                    ;;
                esac
        else
                as_fn_error $? "Dtrace preprocessing test failed." "$LINENO" 5
        fi
fi

if test "$enable_lttng_test" = "yes" ; then
    for ac_header in lttng/tracepoint.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "lttng/tracepoint.h" "ac_cv_header_lttng_tracepoint_h" "$ac_includes_default"
if test "x$ac_cv_header_lttng_tracepoint_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LTTNG_TRACEPOINT_H 1
_ACEOF

fi

done

    for ac_header in lttng/tracepoint-event.h
do :
  ac_fn_c_check_header_mongrel "$LINENO" "lttng/tracepoint-event.h" "ac_cv_header_lttng_tracepoint_event_h" "$ac_includes_default"
if test "x$ac_cv_header_lttng_tracepoint_event_h" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LTTNG_TRACEPOINT_EVENT_H 1
_ACEOF

fi

done

            { $as_echo "$as_me:${as_lineno-$LINENO}: checking for tracepoint_enabled in lttng/tracepoint.h" >&5
$as_echo_n "checking for tracepoint_enabled in lttng/tracepoint.h... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */
#include <lttng/tracepoint.h>
             #define TRACEPOINT_PROVIDER org_erlang_otp
             TRACEPOINT_EVENT(
                 org_erlang_otp,
                 dummy,
                 TP_ARGS(int, my_int),
                 TP_FIELDS(ctf_integer(int, my_int, my_int)))
             #define TRACEPOINT_CREATE_PROBES
             #define TRACEPOINT_DEFINE
int
main ()
{
if(tracepoint_enabled(org_erlang_otp,dummy)) do {} while(0)
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
$as_echo "yes" >&6; }
else
  as_fn_error $? "no (available in lttng-ust v2.7)" "$LINENO" 5
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
    if test "x$ac_cv_header_lttng_tracepoint_h" = "xyes" \
        -a "x$ac_cv_header_lttng_tracepoint_event_h" = "xyes"; then
        # No straight forward way to test for liblttng-ust when no public symbol exists,
        # just add the lib.
        LIBS="$LIBS -llttng-ust -ldl"
    else
        as_fn_error $? "No LTTng support found." "$LINENO" 5
    fi
fi


#--------------------------------------------------------------------
# Os mon stuff.
#--------------------------------------------------------------------



{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for kstat_open in -lkstat" >&5
$as_echo_n "checking for kstat_open in -lkstat... " >&6; }
if ${ac_cv_lib_kstat_kstat_open+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lkstat  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char kstat_open ();
int
main ()
{
return kstat_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_kstat_kstat_open=yes
else
  ac_cv_lib_kstat_kstat_open=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_kstat_kstat_open" >&5
$as_echo "$ac_cv_lib_kstat_kstat_open" >&6; }
if test "x$ac_cv_lib_kstat_kstat_open" = xyes; then :

	use_cpu_sup=yes
	CPU_SUP_LIBS="$CPU_SUP_LIBS -lkstat"

fi


{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for kvm_open in -lkvm" >&5
$as_echo_n "checking for kvm_open in -lkvm... " >&6; }
if ${ac_cv_lib_kvm_kvm_open+:} false; then :
  $as_echo_n "(cached) " >&6
else
  ac_check_lib_save_LIBS=$LIBS
LIBS="-lkvm  $LIBS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

/* Override any GCC internal prototype to avoid an error.
   Use char because int might match the return type of a GCC
   builtin and then its argument prototype would still apply.  */
#ifdef __cplusplus
extern "C"
#endif
char kvm_open ();
int
main ()
{
return kvm_open ();
  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_link "$LINENO"; then :
  ac_cv_lib_kvm_kvm_open=yes
else
  ac_cv_lib_kvm_kvm_open=no
fi
rm -f core conftest.err conftest.$ac_objext \
    conftest$ac_exeext conftest.$ac_ext
LIBS=$ac_check_lib_save_LIBS
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_kvm_kvm_open" >&5
$as_echo "$ac_cv_lib_kvm_kvm_open" >&6; }
if test "x$ac_cv_lib_kvm_kvm_open" = xyes; then :

	use_cpu_sup=yes
	CPU_SUP_LIBS="$CPU_SUP_LIBS -lkvm"

fi


case $host_os in
	solaris2*)
		os_mon_programs="$os_mon_programs ferrule mod_syslog" ;;
	darwin*)
		use_cpu_sup=yes ;;
	openbsd*)
		use_cpu_sup=yes ;;
	linux*)
		use_cpu_sup=yes ;;
	freebsd*)
		use_cpu_sup=yes ;;
esac

if test "$use_cpu_sup" = "yes"; then
    os_mon_programs="$os_mon_programs cpu_sup"
fi


# Check whether --with-javac was given.
if test "${with_javac+set}" = set; then :
  withval=$with_javac;
fi


need_java="jinterface"

if test -d $ERL_TOP/lib/ic; then
   need_java="$need_java ic/java_src"
fi

# Remove all SKIP files from previous runs
for a in $need_java ; do
  rm -f $ERL_TOP/lib/$a/SKIP
done

if test "X$with_javac" = "Xno"; then
  for a in $need_java ; do
	echo "Java compiler disabled by user" > $ERL_TOP/lib/$a/SKIP
  done

else # begin - try to find javac

if test "X$with_javac" != "Xyes" -a "X$with_javac" != "X"; then
    check_javac=$with_javac
else
  check_javac="javac.sh javac guavac gcj jikes bock"
fi

for ac_prog in $check_javac
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_JAVAC+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$JAVAC"; then
  ac_cv_prog_JAVAC="$JAVAC" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_JAVAC="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
JAVAC=$ac_cv_prog_JAVAC
if test -n "$JAVAC"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $JAVAC" >&5
$as_echo "$JAVAC" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$JAVAC" && break
done

if test -n "$JAVAC"; then
    { $as_echo "$as_me:${as_lineno-$LINENO}: checking for JDK version 1.6" >&5
$as_echo_n "checking for JDK version 1.6... " >&6; }
if ${ac_cv_prog_javac_ver_1_6+:} false; then :
  $as_echo_n "(cached) " >&6
else
  java_link='$JAVAC conftest.java 1>&5'
cat > conftest.java <<EOF

class conftest { public static void main(String[] args) {
   for (String i : args);
   ; return; }}
EOF
if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$java_link\""; } >&5
  (eval $java_link) 2>&5
  ac_status=$?
  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
  test $ac_status = 0; } && test -s conftest.class; then
   rm -rf conftest*
   ac_cv_prog_javac_ver_1_6=yes
else
   echo "configure: failed program was:" 1>&5
   cat conftest.java 1>&5
   echo "configure: PATH was $PATH" 1>&5
  rm -rf conftest*
  ac_cv_prog_javac_ver_1_6=no
fi
rm -f conftest*
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_javac_ver_1_6" >&5
$as_echo "$ac_cv_prog_javac_ver_1_6" >&6; }
  if test $ac_cv_prog_javac_ver_1_6 = no; then
    unset -v JAVAC
  fi
fi
if test -z "$JAVAC"; then

  if test "X$with_javac" != "X"; then
  	as_fn_error $? "No java compiler found in PATH (checked for $check_javac)" "$LINENO" 5
  fi

  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Could not find any usable java compiler, will skip: jinterface" >&5
$as_echo "$as_me: WARNING: Could not find any usable java compiler, will skip: jinterface" >&2;}

  for a in $need_java ; do
	echo "No Java compiler found" > $ERL_TOP/lib/$a/SKIP
  done
fi

fi # end - try to find javac


if test -n "$ac_tool_prefix"; then
  for ac_prog in $CCC c++ g++ CC cxx cc++ cl
  do
    # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
set dummy $ac_tool_prefix$ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$CXX"; then
  ac_cv_prog_CXX="$CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
CXX=$ac_cv_prog_CXX
if test -n "$CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
$as_echo "$CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


    test -n "$CXX" && break
  done
fi
if test -z "$CXX"; then
  ac_ct_CXX=$CXX
  for ac_prog in $CCC c++ g++ CC cxx cc++ cl
do
  # Extract the first word of "$ac_prog", so it can be a program name with args.
set dummy $ac_prog; ac_word=$2
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
$as_echo_n "checking for $ac_word... " >&6; }
if ${ac_cv_prog_ac_ct_CXX+:} false; then :
  $as_echo_n "(cached) " >&6
else
  if test -n "$ac_ct_CXX"; then
  ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
else
as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    for ac_exec_ext in '' $ac_executable_extensions; do
  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
    ac_cv_prog_ac_ct_CXX="$ac_prog"
    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
    break 2
  fi
done
  done
IFS=$as_save_IFS

fi
fi
ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
if test -n "$ac_ct_CXX"; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
$as_echo "$ac_ct_CXX" >&6; }
else
  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
$as_echo "no" >&6; }
fi


  test -n "$ac_ct_CXX" && break
done

  if test "x$ac_ct_CXX" = x; then
    CXX="false"
  else
    case $cross_compiling:$ac_tool_warned in
yes:)
{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
ac_tool_warned=yes ;;
esac
    CXX=$ac_ct_CXX
  fi
fi


# Remove SKIP file from previous run
rm -f $ERL_TOP/lib/orber/SKIP

if test "$CXX" = false; then
  echo "No C++ compiler found" > $ERL_TOP/lib/orber/SKIP
fi

CFLAGS="$CFLAGS $CPPFLAGS"

#
# Currently if we compile for 64 bits we want to compile
# some external port programs using 32 bits
#

# If not defined we trust the C compiler in $CC to do 32 bits
if test -z "$CC32"; then
  CC32="$CC"
fi

if test -z "$CFLAGS32"; then
  if test $ac_cv_sizeof_void_p != 4; then
    # We are compiling default 64 bits and use -m32 for 32 bit compilations
    CFLAGS32="$CFLAGS -m32"
  else
    CFLAGS32="$CFLAGS"
  fi
fi






cat >>confdefs.h <<_ACEOF
#define ERTS_EMU_CMDLINE_FLAGS "$STATIC_CFLAGS $CFLAGS $DEBUG_CFLAGS $EMU_THR_DEFS $DEFS $WERRORFLAGS $WFLAGS"
_ACEOF





erts=${erl_top}/erts

erts_dirs="
  $erts/obj $erts/obj.debug

  $erts/obj/$host
  $erts/obj.debug/$host

"
for d in ${erl_top}/bin ${erl_top}/bin/$host $erts_dirs ;
do
  if test ! -d $d; then
    mkdir -p 1>/dev/null 2>&1 $d
  fi
done





for ac_func in log2
do :
  ac_fn_c_check_func "$LINENO" "log2" "ac_cv_func_log2"
if test "x$ac_cv_func_log2" = xyes; then :
  cat >>confdefs.h <<_ACEOF
#define HAVE_LOG2 1
_ACEOF

fi
done



saved_CFLAGS="$CFLAGS"
CFLAGS="-Werror $CFLAGS"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h.  */

int
main ()
{
_Pragma("GCC diagnostic push")
         _Pragma("GCC diagnostic ignored \"-Waddress-of-packed-member\"")
         _Pragma("GCC diagnostic pop")

  ;
  return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :

$as_echo "#define HAVE_GCC_DIAG_IGNORE_WADDRESS_OF_PACKED_MEMBER 1" >>confdefs.h

fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
CFLAGS="$saved_CFLAGS"



if test "x$GCC" = xyes; then
  CFLAGS="$WERRORFLAGS $CFLAGS"
fi



# Check whether --enable-sanitizers was given.
if test "${enable_sanitizers+set}" = set; then :
  enableval=$enable_sanitizers;
case "$enableval" in
    no) sanitizers= ;;
    yes) sanitizers="-fsanitize=address,undefined" ;;
    *) sanitizers="-fsanitize=$enableval" ;;
esac
CFLAGS="$CFLAGS $sanitizers"
LDFLAGS="$LDFLAGS $sanitizers"

fi



ac_config_files="$ac_config_files emulator/$host/Makefile:emulator/Makefile.in epmd/src/$host/Makefile:epmd/src/Makefile.in etc/common/$host/Makefile:etc/common/Makefile.in include/internal/$host/ethread.mk:include/internal/ethread.mk.in include/internal/$host/erts_internal.mk:include/internal/erts_internal.mk.in lib_src/$host/Makefile:lib_src/Makefile.in ../make/$host/otp.mk:../make/otp.mk.in"


ac_config_files="$ac_config_files ../make/make_emakefile:../make/make_emakefile.in"


ac_config_files="$ac_config_files ../lib/os_mon/c_src/$host/Makefile:../lib/os_mon/c_src/Makefile.in ../lib/runtime_tools/c_src/$host/Makefile:../lib/runtime_tools/c_src/Makefile.in ../lib/tools/c_src/$host/Makefile:../lib/tools/c_src/Makefile.in"


ac_config_files="$ac_config_files ../make/install_dir_data.sh:../make/install_dir_data.sh.in"


cat >confcache <<\_ACEOF
# This file is a shell script that caches the results of configure
# tests run on this system so they can be shared between configure
# scripts and configure runs, see configure's option --config-cache.
# It is not useful on other systems.  If it contains results you don't
# want to keep, you may remove or edit it.
#
# config.status only pays attention to the cache file if you give it
# the --recheck option to rerun configure.
#
# `ac_cv_env_foo' variables (set or unset) will be overridden when
# loading this file, other *unset* `ac_cv_foo' will be assigned the
# following values.

_ACEOF

# The following way of writing the cache mishandles newlines in values,
# but we know of no workaround that is simple, portable, and efficient.
# So, we kill variables containing newlines.
# Ultrix sh set writes to stderr and can't be redirected directly,
# and sets the high bit in the cache file unless we assign to the vars.
(
  for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
    eval ac_val=\$$ac_var
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
      BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
      *) { eval $ac_var=; unset $ac_var;} ;;
      esac ;;
    esac
  done

  (set) 2>&1 |
    case $as_nl`(ac_space=' '; set) 2>&1` in #(
    *${as_nl}ac_space=\ *)
      # `set' does not quote correctly, so add quotes: double-quote
      # substitution turns \\\\ into \\, and sed turns \\ into \.
      sed -n \
	"s/'/'\\\\''/g;
	  s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
      ;; #(
    *)
      # `set' quotes correctly as required by POSIX, so do not add quotes.
      sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
      ;;
    esac |
    sort
) |
  sed '
     /^ac_cv_env_/b end
     t clear
     :clear
     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
     t end
     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     :end' >>confcache
if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
  if test -w "$cache_file"; then
    if test "x$cache_file" != "x/dev/null"; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
$as_echo "$as_me: updating cache $cache_file" >&6;}
      if test ! -f "$cache_file" || test -h "$cache_file"; then
	cat confcache >"$cache_file"
      else
        case $cache_file in #(
        */* | ?:*)
	  mv -f confcache "$cache_file"$$ &&
	  mv -f "$cache_file"$$ "$cache_file" ;; #(
        *)
	  mv -f confcache "$cache_file" ;;
	esac
      fi
    fi
  else
    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
  fi
fi
rm -f confcache

test "x$prefix" = xNONE && prefix=$ac_default_prefix
# Let make expand exec_prefix.
test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'

DEFS=-DHAVE_CONFIG_H

ac_libobjs=
ac_ltlibobjs=
U=
for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
  #    will be set to the directory where LIBOBJS objects are built.
  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
  as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
done
LIBOBJS=$ac_libobjs

LTLIBOBJS=$ac_ltlibobjs





: "${CONFIG_STATUS=./config.status}"
ac_write_fail=0
ac_clean_files_save=$ac_clean_files
ac_clean_files="$ac_clean_files $CONFIG_STATUS"
{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
as_write_fail=0
cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
#! $SHELL
# Generated by $as_me.
# Run this file to recreate the current configuration.
# Compiler output produced by configure, useful for debugging
# configure, is in config.log if it exists.

debug=false
ac_cs_recheck=false
ac_cs_silent=false

SHELL=\${CONFIG_SHELL-$SHELL}
export SHELL
_ASEOF
cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
## -------------------- ##
## M4sh Initialization. ##
## -------------------- ##

# Be more Bourne compatible
DUALCASE=1; export DUALCASE # for MKS sh
if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
else
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
  *) :
     ;;
esac
fi


as_nl='
'
export as_nl
# Printing a long string crashes Solaris 7 /usr/bin/printf.
as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
# Prefer a ksh shell builtin over an external printf program on Solaris,
# but without wasting forks for bash or zsh.
if test -z "$BASH_VERSION$ZSH_VERSION" \
    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='print -r --'
  as_echo_n='print -rn --'
elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
  as_echo='printf %s\n'
  as_echo_n='printf %s'
else
  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
    as_echo_n='/usr/ucb/echo -n'
  else
    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
    as_echo_n_body='eval
      arg=$1;
      case $arg in #(
      *"$as_nl"*)
	expr "X$arg" : "X\\(.*\\)$as_nl";
	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
      esac;
      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
    '
    export as_echo_n_body
    as_echo_n='sh -c $as_echo_n_body as_echo'
  fi
  export as_echo_body
  as_echo='sh -c $as_echo_body as_echo'
fi

# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
      PATH_SEPARATOR=';'
  }
fi


# IFS
# We need space, tab and new line, in precisely that order.  Quoting is
# there to prevent editors from complaining about space-tab.
# (If _AS_PATH_WALK were called with IFS unset, it would disable word
# splitting by setting IFS to empty value.)
IFS=" ""	$as_nl"

# Find who we are.  Look in the path if we contain no directory separator.
as_myself=
case $0 in #((
  *[\\/]* ) as_myself=$0 ;;
  *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
for as_dir in $PATH
do
  IFS=$as_save_IFS
  test -z "$as_dir" && as_dir=.
    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
  done
IFS=$as_save_IFS

     ;;
esac
# We did not find ourselves, most probably we were run as `sh COMMAND'
# in which case we are not to be found in the path.
if test "x$as_myself" = x; then
  as_myself=$0
fi
if test ! -f "$as_myself"; then
  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
fi

# Unset variables that we do not need and which cause bugs (e.g. in
# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
# suppresses any "Segmentation fault" message there.  '((' could
# trigger a bug in pdksh 5.2.14.
for as_var in BASH_ENV ENV MAIL MAILPATH
do eval test x\${$as_var+set} = xset \
  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
done
PS1='$ '
PS2='> '
PS4='+ '

# NLS nuisances.
LC_ALL=C
export LC_ALL
LANGUAGE=C
export LANGUAGE

# CDPATH.
(unset CDPATH) >/dev/null 2>&1 && unset CDPATH


# as_fn_error STATUS ERROR [LINENO LOG_FD]
# ----------------------------------------
# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
# script with STATUS, using 1 if that was 0.
as_fn_error ()
{
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
  $as_echo "$as_me: error: $2" >&2
  as_fn_exit $as_status
} # as_fn_error


# as_fn_set_status STATUS
# -----------------------
# Set $? to STATUS, without forking.
as_fn_set_status ()
{
  return $1
} # as_fn_set_status

# as_fn_exit STATUS
# -----------------
# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
as_fn_exit ()
{
  set +e
  as_fn_set_status $1
  exit $1
} # as_fn_exit

# as_fn_unset VAR
# ---------------
# Portably unset VAR.
as_fn_unset ()
{
  { eval $1=; unset $1;}
}
as_unset=as_fn_unset
# as_fn_append VAR VALUE
# ----------------------
# Append the text in VALUE to the end of the definition contained in VAR. Take
# advantage of any shell optimizations that allow amortized linear growth over
# repeated appends, instead of the typical quadratic growth present in naive
# implementations.
if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
else
  as_fn_append ()
  {
    eval $1=\$$1\$2
  }
fi # as_fn_append

# as_fn_arith ARG...
# ------------------
# Perform arithmetic evaluation on the ARGs, and store the result in the
# global $as_val. Take advantage of shells that can avoid forks. The arguments
# must be portable across $(()) and expr.
if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
else
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
fi # as_fn_arith


if expr a : '\(a\)' >/dev/null 2>&1 &&
   test "X`expr 00001 : '.*\(...\)'`" = X001; then
  as_expr=expr
else
  as_expr=false
fi

if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
  as_basename=basename
else
  as_basename=false
fi

if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
  as_dirname=dirname
else
  as_dirname=false
fi

as_me=`$as_basename -- "$0" ||
$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
	 X"$0" : 'X\(//\)$' \| \
	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\/\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`

# Avoid depending upon Character Ranges.
as_cr_letters='abcdefghijklmnopqrstuvwxyz'
as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
as_cr_Letters=$as_cr_letters$as_cr_LETTERS
as_cr_digits='0123456789'
as_cr_alnum=$as_cr_Letters$as_cr_digits

ECHO_C= ECHO_N= ECHO_T=
case `echo -n x` in #(((((
-n*)
  case `echo 'xy\c'` in
  *c*) ECHO_T='	';;	# ECHO_T is single tab character.
  xy)  ECHO_C='\c';;
  *)   echo `echo ksh88 bug on AIX 6.1` > /dev/null
       ECHO_T='	';;
  esac;;
*)
  ECHO_N='-n';;
esac

rm -f conf$$ conf$$.exe conf$$.file
if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
else
  rm -f conf$$.dir
  mkdir conf$$.dir 2>/dev/null
fi
if (echo >conf$$.file) 2>/dev/null; then
  if ln -s conf$$.file conf$$ 2>/dev/null; then
    as_ln_s='ln -s'
    # ... but there are two gotchas:
    # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
    # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
    # In both cases, we have to default to `cp -pR'.
    ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
      as_ln_s='cp -pR'
  elif ln conf$$.file conf$$ 2>/dev/null; then
    as_ln_s=ln
  else
    as_ln_s='cp -pR'
  fi
else
  as_ln_s='cp -pR'
fi
rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
rmdir conf$$.dir 2>/dev/null


# as_fn_mkdir_p
# -------------
# Create "$as_dir" as a directory, including parents if necessary.
as_fn_mkdir_p ()
{

  case $as_dir in #(
  -*) as_dir=./$as_dir;;
  esac
  test -d "$as_dir" || eval $as_mkdir_p || {
    as_dirs=
    while :; do
      case $as_dir in #(
      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
      as_dir=`$as_dirname -- "$as_dir" ||
$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$as_dir" : 'X\(//\)[^/]' \| \
	 X"$as_dir" : 'X\(//\)$' \| \
	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
      test -d "$as_dir" && break
    done
    test -z "$as_dirs" || eval "mkdir $as_dirs"
  } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"


} # as_fn_mkdir_p
if mkdir -p . 2>/dev/null; then
  as_mkdir_p='mkdir -p "$as_dir"'
else
  test -d ./-p && rmdir ./-p
  as_mkdir_p=false
fi


# as_fn_executable_p FILE
# -----------------------
# Test if FILE is an executable regular file.
as_fn_executable_p ()
{
  test -f "$1" && test -x "$1"
} # as_fn_executable_p
as_test_x='test -x'
as_executable_p=as_fn_executable_p

# Sed expression to map a string onto a valid CPP name.
as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"

# Sed expression to map a string onto a valid variable name.
as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"


exec 6>&1
## ----------------------------------- ##
## Main body of $CONFIG_STATUS script. ##
## ----------------------------------- ##
_ASEOF
test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# Save the log message, to keep $0 and so on meaningful, and to
# report actual input values of CONFIG_FILES etc. instead of their
# values after options handling.
ac_log="
This file was extended by $as_me, which was
generated by GNU Autoconf 2.69.  Invocation command line was

  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
  CONFIG_LINKS    = $CONFIG_LINKS
  CONFIG_COMMANDS = $CONFIG_COMMANDS
  $ $0 $@

on `(hostname || uname -n) 2>/dev/null | sed 1q`
"

_ACEOF

case $ac_config_files in *"
"*) set x $ac_config_files; shift; ac_config_files=$*;;
esac

case $ac_config_headers in *"
"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
esac


cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
# Files that config.status was made for.
config_files="$ac_config_files"
config_headers="$ac_config_headers"

_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
ac_cs_usage="\
\`$as_me' instantiates files and other configuration actions
from templates according to the current configuration.  Unless the files
and actions are specified as TAGs, all are instantiated by default.

Usage: $0 [OPTION]... [TAG]...

  -h, --help       print this help, then exit
  -V, --version    print version number and configuration settings, then exit
      --config     print configuration, then exit
  -q, --quiet, --silent
                   do not print progress messages
  -d, --debug      don't remove temporary files
      --recheck    update $as_me by reconfiguring in the same conditions
      --file=FILE[:TEMPLATE]
                   instantiate the configuration file FILE
      --header=FILE[:TEMPLATE]
                   instantiate the configuration header FILE

Configuration files:
$config_files

Configuration headers:
$config_headers

Report bugs to the package provider."

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
ac_cs_version="\\
config.status
configured by $0, generated by GNU Autoconf 2.69,
  with options \\"\$ac_cs_config\\"

Copyright (C) 2012 Free Software Foundation, Inc.
This config.status script is free software; the Free Software Foundation
gives unlimited permission to copy, distribute and modify it."

ac_pwd='$ac_pwd'
srcdir='$srcdir'
INSTALL='$INSTALL'
test -n "\$AWK" || AWK=awk
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# The default lists apply if the user does not specify any file.
ac_need_defaults=:
while test $# != 0
do
  case $1 in
  --*=?*)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
    ac_shift=:
    ;;
  --*=)
    ac_option=`expr "X$1" : 'X\([^=]*\)='`
    ac_optarg=
    ac_shift=:
    ;;
  *)
    ac_option=$1
    ac_optarg=$2
    ac_shift=shift
    ;;
  esac

  case $ac_option in
  # Handling of the options.
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
    $as_echo "$ac_cs_version"; exit ;;
  --config | --confi | --conf | --con | --co | --c )
    $as_echo "$ac_cs_config"; exit ;;
  --debug | --debu | --deb | --de | --d | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    '') as_fn_error $? "missing file argument" ;;
    esac
    as_fn_append CONFIG_FILES " '$ac_optarg'"
    ac_need_defaults=false;;
  --header | --heade | --head | --hea )
    $ac_shift
    case $ac_optarg in
    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    as_fn_append CONFIG_HEADERS " '$ac_optarg'"
    ac_need_defaults=false;;
  --he | --h)
    # Conflict between --help and --header
    as_fn_error $? "ambiguous option: \`$1'
Try \`$0 --help' for more information.";;
  --help | --hel | -h )
    $as_echo "$ac_cs_usage"; exit ;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;

  # This is an error.
  -*) as_fn_error $? "unrecognized option: \`$1'
Try \`$0 --help' for more information." ;;

  *) as_fn_append ac_config_targets " $1"
     ac_need_defaults=false ;;

  esac
  shift
done

ac_configure_extra_args=

if $ac_cs_silent; then
  exec 6>/dev/null
  ac_configure_extra_args="$ac_configure_extra_args --silent"
fi

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
if \$ac_cs_recheck; then
  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
  shift
  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
  CONFIG_SHELL='$SHELL'
  export CONFIG_SHELL
  exec "\$@"
fi

_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
exec 5>>config.log
{
  echo
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
## Running $as_me. ##
_ASBOX
  $as_echo "$ac_log"
} >&5

_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1

# Handling of arguments.
for ac_config_target in $ac_config_targets
do
  case $ac_config_target in
    "$host/config.h") CONFIG_HEADERS="$CONFIG_HEADERS $host/config.h:config.h.in" ;;
    "include/internal/$host/ethread_header_config.h") CONFIG_HEADERS="$CONFIG_HEADERS include/internal/$host/ethread_header_config.h:include/internal/ethread_header_config.h.in" ;;
    "include/$host/erl_int_sizes_config.h") CONFIG_HEADERS="$CONFIG_HEADERS include/$host/erl_int_sizes_config.h:include/erl_int_sizes_config.h.in" ;;
    "emulator/$host/Makefile") CONFIG_FILES="$CONFIG_FILES emulator/$host/Makefile:emulator/Makefile.in" ;;
    "epmd/src/$host/Makefile") CONFIG_FILES="$CONFIG_FILES epmd/src/$host/Makefile:epmd/src/Makefile.in" ;;
    "etc/common/$host/Makefile") CONFIG_FILES="$CONFIG_FILES etc/common/$host/Makefile:etc/common/Makefile.in" ;;
    "include/internal/$host/ethread.mk") CONFIG_FILES="$CONFIG_FILES include/internal/$host/ethread.mk:include/internal/ethread.mk.in" ;;
    "include/internal/$host/erts_internal.mk") CONFIG_FILES="$CONFIG_FILES include/internal/$host/erts_internal.mk:include/internal/erts_internal.mk.in" ;;
    "lib_src/$host/Makefile") CONFIG_FILES="$CONFIG_FILES lib_src/$host/Makefile:lib_src/Makefile.in" ;;
    "../make/$host/otp.mk") CONFIG_FILES="$CONFIG_FILES ../make/$host/otp.mk:../make/otp.mk.in" ;;
    "../make/make_emakefile") CONFIG_FILES="$CONFIG_FILES ../make/make_emakefile:../make/make_emakefile.in" ;;
    "../lib/os_mon/c_src/$host/Makefile") CONFIG_FILES="$CONFIG_FILES ../lib/os_mon/c_src/$host/Makefile:../lib/os_mon/c_src/Makefile.in" ;;
    "../lib/runtime_tools/c_src/$host/Makefile") CONFIG_FILES="$CONFIG_FILES ../lib/runtime_tools/c_src/$host/Makefile:../lib/runtime_tools/c_src/Makefile.in" ;;
    "../lib/tools/c_src/$host/Makefile") CONFIG_FILES="$CONFIG_FILES ../lib/tools/c_src/$host/Makefile:../lib/tools/c_src/Makefile.in" ;;
    "../make/install_dir_data.sh") CONFIG_FILES="$CONFIG_FILES ../make/install_dir_data.sh:../make/install_dir_data.sh.in" ;;

  *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
  esac
done


# If the user did not use the arguments to specify the items to instantiate,
# then the envvar interface is used.  Set only those that are not.
# We use the long form for the default assignment because of an extremely
# bizarre bug on SunOS 4.1.3.
if $ac_need_defaults; then
  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
  test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
fi

# Have a temporary directory for convenience.  Make it in the build tree
# simply because there is no reason against having it here, and in addition,
# creating and moving files from /tmp can sometimes cause problems.
# Hook for its removal unless debugging.
# Note that there is a small window in which the directory will not be cleaned:
# after its creation but before its name has been assigned to `$tmp'.
$debug ||
{
  tmp= ac_tmp=
  trap 'exit_status=$?
  : "${ac_tmp:=$tmp}"
  { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
' 0
  trap 'as_fn_exit 1' 1 2 13 15
}
# Create a (secure) tmp directory for tmp files.

{
  tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
  test -d "$tmp"
}  ||
{
  tmp=./conf$$-$RANDOM
  (umask 077 && mkdir "$tmp")
} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
ac_tmp=$tmp

# Set up the scripts for CONFIG_FILES section.
# No need to generate them if there are no CONFIG_FILES.
# This happens for instance with `./config.status config.h'.
if test -n "$CONFIG_FILES"; then


ac_cr=`echo X | tr X '\015'`
# On cygwin, bash can eat \r inside `` if the user requested igncr.
# But we know of no other shell where ac_cr would be empty at this
# point, so we can use a bashism as a fallback.
if test "x$ac_cr" = x; then
  eval ac_cr=\$\'\\r\'
fi
ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
  ac_cs_awk_cr='\\r'
else
  ac_cs_awk_cr=$ac_cr
fi

echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
_ACEOF


{
  echo "cat >conf$$subs.awk <<_ACEOF" &&
  echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
  echo "_ACEOF"
} >conf$$subs.sh ||
  as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
ac_delim='%!_!# '
for ac_last_try in false false false false false :; do
  . ./conf$$subs.sh ||
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5

  ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
  if test $ac_delim_n = $ac_delim_num; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done
rm -f conf$$subs.sh

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
_ACEOF
sed -n '
h
s/^/S["/; s/!.*/"]=/
p
g
s/^[^!]*!//
:repl
t repl
s/'"$ac_delim"'$//
t delim
:nl
h
s/\(.\{148\}\)..*/\1/
t more1
s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
p
n
b repl
:more1
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t nl
:delim
h
s/\(.\{148\}\)..*/\1/
t more2
s/["\\]/\\&/g; s/^/"/; s/$/"/
p
b
:more2
s/["\\]/\\&/g; s/^/"/; s/$/"\\/
p
g
s/.\{148\}//
t delim
' <conf$$subs.awk | sed '
/^[^""]/{
  N
  s/\n//
}
' >>$CONFIG_STATUS || ac_write_fail=1
rm -f conf$$subs.awk
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
_ACAWK
cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
  for (key in S) S_is_set[key] = 1
  FS = ""

}
{
  line = $ 0
  nfields = split(line, field, "@")
  substed = 0
  len = length(field[1])
  for (i = 2; i < nfields; i++) {
    key = field[i]
    keylen = length(key)
    if (S_is_set[key]) {
      value = S[key]
      line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
      len += length(value) + length(field[++i])
      substed = 1
    } else
      len += 1 + keylen
  }

  print line
}

_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
  sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
else
  cat
fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
  || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
_ACEOF

# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
# trailing colons and then remove the whole line if VPATH becomes empty
# (actually we leave an empty line to preserve line numbers).
if test "x$srcdir" = x.; then
  ac_vpsub='/^[	 ]*VPATH[	 ]*=[	 ]*/{
h
s///
s/^/:/
s/[	 ]*$/:/
s/:\$(srcdir):/:/g
s/:\${srcdir}:/:/g
s/:@srcdir@:/:/g
s/^:*//
s/:*$//
x
s/\(=[	 ]*\).*/\1/
G
s/\n//
s/^[^=]*=[	 ]*$//
}'
fi

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
fi # test -n "$CONFIG_FILES"

# Set up the scripts for CONFIG_HEADERS section.
# No need to generate them if there are no CONFIG_HEADERS.
# This happens for instance with `./config.status Makefile'.
if test -n "$CONFIG_HEADERS"; then
cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
BEGIN {
_ACEOF

# Transform confdefs.h into an awk script `defines.awk', embedded as
# here-document in config.status, that substitutes the proper values into
# config.h.in to produce config.h.

# Create a delimiter string that does not exist in confdefs.h, to ease
# handling of long lines.
ac_delim='%!_!# '
for ac_last_try in false false :; do
  ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
  if test -z "$ac_tt"; then
    break
  elif $ac_last_try; then
    as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
  else
    ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
  fi
done

# For the awk script, D is an array of macro values keyed by name,
# likewise P contains macro parameters if any.  Preserve backslash
# newline sequences.

ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
sed -n '
s/.\{148\}/&'"$ac_delim"'/g
t rset
:rset
s/^[	 ]*#[	 ]*define[	 ][	 ]*/ /
t def
d
:def
s/\\$//
t bsnl
s/["\\]/\\&/g
s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
D["\1"]=" \3"/p
s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2"/p
d
:bsnl
s/["\\]/\\&/g
s/^ \('"$ac_word_re"'\)\(([^()]*)\)[	 ]*\(.*\)/P["\1"]="\2"\
D["\1"]=" \3\\\\\\n"\\/p
t cont
s/^ \('"$ac_word_re"'\)[	 ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
t cont
d
:cont
n
s/.\{148\}/&'"$ac_delim"'/g
t clear
:clear
s/\\$//
t bsnlc
s/["\\]/\\&/g; s/^/"/; s/$/"/p
d
:bsnlc
s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
b cont
' <confdefs.h | sed '
s/'"$ac_delim"'/"\\\
"/g' >>$CONFIG_STATUS || ac_write_fail=1

cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  for (key in D) D_is_set[key] = 1
  FS = ""
}
/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
  line = \$ 0
  split(line, arg, " ")
  if (arg[1] == "#") {
    defundef = arg[2]
    mac1 = arg[3]
  } else {
    defundef = substr(arg[1], 2)
    mac1 = arg[2]
  }
  split(mac1, mac2, "(") #)
  macro = mac2[1]
  prefix = substr(line, 1, index(line, defundef) - 1)
  if (D_is_set[macro]) {
    # Preserve the white space surrounding the "#".
    print prefix "define", macro P[macro] D[macro]
    next
  } else {
    # Replace #undef with comments.  This is necessary, for example,
    # in the case of _POSIX_SOURCE, which is predefined and required
    # on some systems where configure will not decide to define it.
    if (defundef == "undef") {
      print "/*", prefix defundef, macro, "*/"
      next
    }
  }
}
{ print }
_ACAWK
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
  as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
fi # test -n "$CONFIG_HEADERS"


eval set X "  :F $CONFIG_FILES  :H $CONFIG_HEADERS    "
shift
for ac_tag
do
  case $ac_tag in
  :[FHLC]) ac_mode=$ac_tag; continue;;
  esac
  case $ac_mode$ac_tag in
  :[FHL]*:*);;
  :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
  :[FH]-) ac_tag=-:-;;
  :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
  esac
  ac_save_IFS=$IFS
  IFS=:
  set x $ac_tag
  IFS=$ac_save_IFS
  shift
  ac_file=$1
  shift

  case $ac_mode in
  :L) ac_source=$1;;
  :[FH])
    ac_file_inputs=
    for ac_f
    do
      case $ac_f in
      -) ac_f="$ac_tmp/stdin";;
      *) # Look for the file first in the build tree, then in the source tree
	 # (if the path is not absolute).  The absolute path cannot be DOS-style,
	 # because $ac_f cannot contain `:'.
	 test -f "$ac_f" ||
	   case $ac_f in
	   [\\/$]*) false;;
	   *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
	   esac ||
	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
      esac
      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
      as_fn_append ac_file_inputs " '$ac_f'"
    done

    # Let's still pretend it is `configure' which instantiates (i.e., don't
    # use $as_me), people would be surprised to read:
    #    /* config.h.  Generated by config.status.  */
    configure_input='Generated from '`
	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
	`' by configure.'
    if test x"$ac_file" != x-; then
      configure_input="$ac_file.  $configure_input"
      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
$as_echo "$as_me: creating $ac_file" >&6;}
    fi
    # Neutralize special characters interpreted by sed in replacement strings.
    case $configure_input in #(
    *\&* | *\|* | *\\* )
       ac_sed_conf_input=`$as_echo "$configure_input" |
       sed 's/[\\\\&|]/\\\\&/g'`;; #(
    *) ac_sed_conf_input=$configure_input;;
    esac

    case $ac_tag in
    *:-:* | *:-) cat >"$ac_tmp/stdin" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
    esac
    ;;
  esac

  ac_dir=`$as_dirname -- "$ac_file" ||
$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
	 X"$ac_file" : 'X\(//\)[^/]' \| \
	 X"$ac_file" : 'X\(//\)$' \| \
	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
$as_echo X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)[^/].*/{
	    s//\1/
	    q
	  }
	  /^X\(\/\/\)$/{
	    s//\1/
	    q
	  }
	  /^X\(\/\).*/{
	    s//\1/
	    q
	  }
	  s/.*/./; q'`
  as_dir="$ac_dir"; as_fn_mkdir_p
  ac_builddir=.

case "$ac_dir" in
.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
*)
  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
  esac ;;
esac
ac_abs_top_builddir=$ac_pwd
ac_abs_builddir=$ac_pwd$ac_dir_suffix
# for backward compatibility:
ac_top_builddir=$ac_top_build_prefix

case $srcdir in
  .)  # We are building in place.
    ac_srcdir=.
    ac_top_srcdir=$ac_top_builddir_sub
    ac_abs_top_srcdir=$ac_pwd ;;
  [\\/]* | ?:[\\/]* )  # Absolute name.
    ac_srcdir=$srcdir$ac_dir_suffix;
    ac_top_srcdir=$srcdir
    ac_abs_top_srcdir=$srcdir ;;
  *) # Relative name.
    ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
    ac_top_srcdir=$ac_top_build_prefix$srcdir
    ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
esac
ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix


  case $ac_mode in
  :F)
  #
  # CONFIG_FILE
  #

  case $INSTALL in
  [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
  *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
  esac
_ACEOF

cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
# If the template does not know about datarootdir, expand it.
# FIXME: This hack should be removed a few years after 2.60.
ac_datarootdir_hack=; ac_datarootdir_seen=
ac_sed_dataroot='
/datarootdir/ {
  p
  q
}
/@datadir@/p
/@docdir@/p
/@infodir@/p
/@localedir@/p
/@mandir@/p'
case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
*datarootdir*) ac_datarootdir_seen=yes;;
*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
_ACEOF
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  ac_datarootdir_hack='
  s&@datadir@&$datadir&g
  s&@docdir@&$docdir&g
  s&@infodir@&$infodir&g
  s&@localedir@&$localedir&g
  s&@mandir@&$mandir&g
  s&\\\${datarootdir}&$datarootdir&g' ;;
esac
_ACEOF

# Neutralize VPATH when `$srcdir' = `.'.
# Shell code in configure.ac might set extrasub.
# FIXME: do we really want to maintain this feature?
cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
ac_sed_extra="$ac_vpsub
$extrasub
_ACEOF
cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
:t
/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
s|@configure_input@|$ac_sed_conf_input|;t t
s&@top_builddir@&$ac_top_builddir_sub&;t t
s&@top_build_prefix@&$ac_top_build_prefix&;t t
s&@srcdir@&$ac_srcdir&;t t
s&@abs_srcdir@&$ac_abs_srcdir&;t t
s&@top_srcdir@&$ac_top_srcdir&;t t
s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
s&@builddir@&$ac_builddir&;t t
s&@abs_builddir@&$ac_abs_builddir&;t t
s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
s&@INSTALL@&$ac_INSTALL&;t t
$ac_datarootdir_hack
"
eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
  >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5

test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
      "$ac_tmp/out"`; test -z "$ac_out"; } &&
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&5
$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
which seems to be undefined.  Please make sure it is defined" >&2;}

  rm -f "$ac_tmp/stdin"
  case $ac_file in
  -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
  *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
  esac \
  || as_fn_error $? "could not create $ac_file" "$LINENO" 5
 ;;
  :H)
  #
  # CONFIG_HEADER
  #
  if test x"$ac_file" != x-; then
    {
      $as_echo "/* $configure_input  */" \
      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
    } >"$ac_tmp/config.h" \
      || as_fn_error $? "could not create $ac_file" "$LINENO" 5
    if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
      { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
$as_echo "$as_me: $ac_file is unchanged" >&6;}
    else
      rm -f "$ac_file"
      mv "$ac_tmp/config.h" "$ac_file" \
	|| as_fn_error $? "could not create $ac_file" "$LINENO" 5
    fi
  else
    $as_echo "/* $configure_input  */" \
      && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
      || as_fn_error $? "could not create -" "$LINENO" 5
  fi
 ;;


  esac


  case $ac_file$ac_mode in
    "../make/make_emakefile":F) chmod +x ../make/make_emakefile ;;
    "../make/install_dir_data.sh":F) chmod +x ../make/install_dir_data.sh ;;

  esac
done # for ac_tag


as_fn_exit 0
_ACEOF
ac_clean_files=$ac_clean_files_save

test $ac_write_fail = 0 ||
  as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5


# configure is writing to config.log, and then calls config.status.
# config.status does its own redirection, appending to config.log.
# Unfortunately, on DOS this fails, as config.log is still kept open
# by configure, so config.status won't be able to write to it; its
# output is simply discarded.  So we exec the FD to /dev/null,
# effectively closing config.log, so it can be properly (re)opened and
# appended to by config.status.  When coming back to configure, we
# need to make the FD available again.
if test "$no_create" != yes; then
  ac_cs_success=:
  ac_config_status_args=
  test "$silent" = yes &&
    ac_config_status_args="$ac_config_status_args --quiet"
  exec 5>/dev/null
  $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
  exec 5>>config.log
  # Use ||, not &&, to avoid exiting from the if with $? = 1, which
  # would make configure fail if this is the last instruction.
  $ac_cs_success || as_fn_exit 1
fi
if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
fi