fi
])
+dnl
+dnl Check whether, if you pass an unknown warning option to the
+dnl compiler, it fails or just prints a warning message and succeeds.
+dnl Set ac_lbl_unknown_warning_option_error to the appropriate flag
+dnl to force an error if it would otherwise just print a warning message
+dnl and succeed.
+dnl
+AC_DEFUN(AC_LBL_CHECK_UNKNOWN_WARNING_OPTION_ERROR,
+ [
+ AC_MSG_CHECKING([whether the compiler fails when given an unknown warning option])
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Wxyzzy-this-will-never-succeed-xyzzy"
+ AC_TRY_COMPILE(
+ [],
+ [return 0],
+ [
+ AC_MSG_RESULT([no])
+ #
+ # We're assuming this is clang, where
+ # -Werror=unknown-warning-option is the appropriate
+ # option to force the compiler to fail.
+ #
+ ac_lbl_unknown_warning_option_error="-Werror=unknown-warning-option"
+ ],
+ [
+ AC_MSG_RESULT([yes])
+ ])
+ CFLAGS="$save_CFLAGS"
+ ])
+
+dnl
+dnl Check whether the compiler option specified as the second argument
+dnl is supported by the compiler and, if so, add it to the macro
+dnl specified as the first argument
+dnl
+AC_DEFUN(AC_LBL_CHECK_COMPILER_OPT,
+ [
+ AC_MSG_CHECKING([whether the compiler supports the $2 option])
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error $2"
+ AC_TRY_COMPILE(
+ [],
+ [return 0],
+ [
+ AC_MSG_RESULT([yes])
+ CFLAGS="$save_CFLAGS"
+ $1="$$1 $2"
+ ],
+ [
+ AC_MSG_RESULT([no])
+ CFLAGS="$save_CFLAGS"
+ ])
+ ])
+
#
# Try compiling a sample of the type of code that appears in
# gencode.c with "inline", "__inline__", and "__inline".
fi])
dnl
-dnl If using gcc and the file .devel exists:
-dnl Compile with -g (if supported) and -Wall
-dnl If using gcc 2 or later, do extra prototype checking and some other
-dnl checks
+dnl If the file .devel exists:
+dnl Add some warning flags if the compiler supports them
dnl If an os prototype include exists, symlink os-proto.h to it
+dnl If we're using gcc:
+dnl Compile with -g (if supported)
dnl
dnl usage:
dnl
$1="$$1 ${LBL_CFLAGS}"
fi
if test -f .devel ; then
+ AC_LBL_CHECK_UNKNOWN_WARNING_OPTION_ERROR()
+ AC_LBL_CHECK_COMPILER_OPT($1, -Wall)
+ AC_LBL_CHECK_COMPILER_OPT($1, -Wmissing-prototypes)
+ AC_LBL_CHECK_COMPILER_OPT($1, -Wstrict-prototypes)
+ AC_LBL_CHECK_COMPILER_OPT($1, -Wwrite-strings)
+ AC_LBL_CHECK_COMPILER_OPT($1, -Wpointer-arith)
+ AC_LBL_CHECK_COMPILER_OPT($1, -W)
if test "$GCC" = yes ; then
if test "${LBL_CFLAGS+set}" != set; then
if test "$ac_cv_prog_cc_g" = yes ; then
$1="-g $$1"
fi
- $1="$$1 -Wall"
- if test $ac_cv_lbl_gcc_vers -gt 1 ; then
- $1="$$1 -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wpointer-arith -W"
- fi
fi
else
case "$host_os" in
V_CCOPT="$V_CCOPT ${LBL_CFLAGS}"
fi
if test -f .devel ; then
+
+ { echo "$as_me:$LINENO: checking whether the compiler fails when given an unknown warning option" >&5
+echo $ECHO_N "checking whether the compiler fails when given an unknown warning option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -Wxyzzy-this-will-never-succeed-xyzzy"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ #
+ # We're assuming this is clang, where
+ # -Werror=unknown-warning-option is the appropriate
+ # option to force the compiler to fail.
+ #
+ ac_lbl_unknown_warning_option_error="-Werror=unknown-warning-option"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ CFLAGS="$save_CFLAGS"
+
+
+ { echo "$as_me:$LINENO: checking whether the compiler supports the -Wall option" >&5
+echo $ECHO_N "checking whether the compiler supports the -Wall option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -Wall"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ CFLAGS="$save_CFLAGS"
+ V_CCOPT="$V_CCOPT -Wall"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ CFLAGS="$save_CFLAGS"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+ { echo "$as_me:$LINENO: checking whether the compiler supports the -Wmissing-prototypes option" >&5
+echo $ECHO_N "checking whether the compiler supports the -Wmissing-prototypes option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -Wmissing-prototypes"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ CFLAGS="$save_CFLAGS"
+ V_CCOPT="$V_CCOPT -Wmissing-prototypes"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ CFLAGS="$save_CFLAGS"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+ { echo "$as_me:$LINENO: checking whether the compiler supports the -Wstrict-prototypes option" >&5
+echo $ECHO_N "checking whether the compiler supports the -Wstrict-prototypes option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -Wstrict-prototypes"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ CFLAGS="$save_CFLAGS"
+ V_CCOPT="$V_CCOPT -Wstrict-prototypes"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ CFLAGS="$save_CFLAGS"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+ { echo "$as_me:$LINENO: checking whether the compiler supports the -Wwrite-strings option" >&5
+echo $ECHO_N "checking whether the compiler supports the -Wwrite-strings option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -Wwrite-strings"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ CFLAGS="$save_CFLAGS"
+ V_CCOPT="$V_CCOPT -Wwrite-strings"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ CFLAGS="$save_CFLAGS"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+ { echo "$as_me:$LINENO: checking whether the compiler supports the -Wpointer-arith option" >&5
+echo $ECHO_N "checking whether the compiler supports the -Wpointer-arith option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -Wpointer-arith"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ CFLAGS="$save_CFLAGS"
+ V_CCOPT="$V_CCOPT -Wpointer-arith"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ CFLAGS="$save_CFLAGS"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+
+ { echo "$as_me:$LINENO: checking whether the compiler supports the -W option" >&5
+echo $ECHO_N "checking whether the compiler supports the -W option... $ECHO_C" >&6; }
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS $ac_lbl_unknown_warning_option_error -W"
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+int
+main ()
+{
+return 0
+ ;
+ return 0;
+}
+_ACEOF
+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 "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
+ (eval "$ac_compile") 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then
+
+ { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+ CFLAGS="$save_CFLAGS"
+ V_CCOPT="$V_CCOPT -W"
+
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+ { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+ CFLAGS="$save_CFLAGS"
+
+fi
+
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
if test "$GCC" = yes ; then
if test "${LBL_CFLAGS+set}" != set; then
if test "$ac_cv_prog_cc_g" = yes ; then
V_CCOPT="-g $V_CCOPT"
fi
- V_CCOPT="$V_CCOPT -Wall"
- if test $ac_cv_lbl_gcc_vers -gt 1 ; then
- V_CCOPT="$V_CCOPT -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wpointer-arith -W"
- fi
fi
else
case "$host_os" in