The Tcpdump Group git mirrors - libpcap/blob - configure.in

   1 dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.107 2004-03-28 20:31:07 fenner Exp $ (LBL)
   2 dnl
   3 dnl Copyright (c) 1994, 1995, 1996, 1997
   4 dnl     The Regents of the University of California.  All rights reserved.
   5 dnl
   6 dnl Process this file with autoconf to produce a configure script.
   7 dnl
   8
   9 AC_REVISION($Revision: 1.107 $)
  10 AC_PREREQ(2.50)
  11 AC_INIT(pcap.c)
  12
  13 AC_CANONICAL_SYSTEM
  14
  15 AC_LBL_C_INIT(V_CCOPT, V_INCLS, V_LIBS)
  16 AC_LBL_C_INLINE
  17 AC_C___ATTRIBUTE__
  18
  19 AC_LBL_CHECK_TYPE(u_int8_t, u_char)
  20 AC_LBL_CHECK_TYPE(u_int16_t, u_short)
  21 AC_LBL_CHECK_TYPE(u_int32_t, u_int)
  22
  23 dnl
  24 dnl libpcap doesn't itself use <sys/ioccom.h>; however, the test program
  25 dnl in "AC_LBL_FIXINCLUDES" in "aclocal.m4" uses it, so we have to
  26 dnl test for it and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise
  27 dnl "AC_LBL_FIXINCLUDES" won't work on some platforms such as Solaris.
  28 dnl
  29 AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h ifaddrs.h limits.h)
  30 AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include <sys/types.h>
  31 #include <sys/socket.h>])
  32
  33 AC_LBL_FIXINCLUDES
  34
  35 AC_CHECK_FUNCS(ether_hostton strerror strlcpy)
  36
  37 needsnprintf=no
  38 AC_CHECK_FUNCS(vsnprintf snprintf,,
  39         [needsnprintf=yes])
  40 if test $needsnprintf = yes; then
  41         AC_LIBOBJ(snprintf)
  42 fi
  43
  44 dnl to pacify those who hate protochain insn
  45 AC_MSG_CHECKING(if --disable-protochain option is specified)
  46 AC_ARG_ENABLE(protochain, [  --disable-protochain    disable \"protochain\" insn])
  47 case "x$enable_protochain" in
  48 xyes)   enable_protochain=enabled       ;;
  49 xno)    enable_protochain=disabled      ;;
  50 x)      enable_protochain=enabled       ;;
  51 esac
  52
  53 if test "$enable_protochain" = "disabled"; then
  54         AC_DEFINE(NO_PROTOCHAIN,1,[do not use protochain])
  55 fi
  56 AC_MSG_RESULT(${enable_protochain})
  57
  58 dnl
  59 dnl Not all versions of test support -c (character special) but it's a
  60 dnl better way of testing since the device might be protected. So we
  61 dnl check in our normal order using -r and then check the for the /dev
  62 dnl guys again using -c.
  63 dnl
  64 dnl XXX This could be done for cross-compiling, but for now it's not.
  65 dnl
  66 if test -z "$with_pcap" && test "$cross_compiling" = yes; then
  67         AC_MSG_ERROR(pcap type not determined when cross-compiling; use --with-pcap=...)
  68 fi
  69 AC_ARG_WITH(pcap, [  --with-pcap=TYPE        use packet capture TYPE])
  70 AC_MSG_CHECKING(packet capture type)
  71 if test ! -z "$with_pcap" ; then
  72         V_PCAP="$withval"
  73 elif test -r /dev/bpf0 ; then
  74         V_PCAP=bpf
  75 elif test -r /usr/include/net/pfilt.h ; then
  76         V_PCAP=pf
  77 elif test -r /dev/enet ; then
  78         V_PCAP=enet
  79 elif test -r /dev/nit ; then
  80         V_PCAP=snit
  81 elif test -r /usr/include/sys/net/nit.h ; then
  82         V_PCAP=nit
  83 elif test -r /usr/include/linux/socket.h ; then
  84         V_PCAP=linux
  85 elif test -r /usr/include/net/raw.h ; then
  86         V_PCAP=snoop
  87 elif test -r /usr/include/odmi.h ; then
  88         #
  89         # On AIX, the BPF devices might not yet be present - they're
  90         # created the first time libpcap runs after booting.
  91         # We check for odmi.h instead.
  92         #
  93         V_PCAP=bpf
  94 elif test -r /usr/include/sys/dlpi.h ; then
  95         V_PCAP=dlpi
  96 elif test -c /dev/bpf0 ; then           # check again in case not readable
  97         V_PCAP=bpf
  98 elif test -c /dev/enet ; then           # check again in case not readable
  99         V_PCAP=enet
 100 elif test -c /dev/nit ; then            # check again in case not readable
 101         V_PCAP=snit
 102 else
 103         V_PCAP=null
 104 fi
 105 AC_MSG_RESULT($V_PCAP)
 106
 107 dnl
 108 dnl Now figure out how we get a list of interfaces and addresses.
 109 dnl
 110 AC_CHECK_FUNC(getifaddrs,[
 111         #
 112         # We have "getifaddrs()", so we use that to get the list
 113         #
 114         V_FINDALLDEVS=getad
 115 ],[
 116         #
 117         # Well, we don't have "getifaddrs()", so we have to use some
 118         # other mechanism; determine what that mechanism is.
 119         #
 120         # The first thing we use is the type of capture mechanism,
 121         # which is somewhat of a proxy for the OS we're using.
 122         #
 123         case "$V_PCAP" in
 124
 125         dlpi)
 126                 #
 127                 # This might be Solaris 8 or later, with SIOCGLIFCONF,
 128                 # or it might be some other OS, with just SIOCGIFCONF.
 129                 #
 130                 AC_MSG_CHECKING(whether we have SIOCGLIFCONF)
 131                 AC_CACHE_VAL(ac_cv_lbl_have_siocglifconf,
 132                     AC_TRY_COMPILE(
 133                         [#include <sys/param.h>
 134                         #include <sys/file.h>
 135                         #include <sys/ioctl.h>
 136                         #include <sys/socket.h>
 137                         #include <sys/sockio.h>],
 138                         [ioctl(0, SIOCGLIFCONF, (char *)0);],
 139                         ac_cv_lbl_have_siocglifconf=yes,
 140                         ac_cv_lbl_have_siocglifconf=no))
 141                 AC_MSG_RESULT($ac_cv_lbl_have_siocglifconf)
 142                 if test $ac_cv_lbl_have_siocglifconf = yes ; then
 143                         V_FINDALLDEVS=glifc
 144                 else
 145                         V_FINDALLDEVS=gifc
 146                 fi
 147                 ;;
 148
 149         null)
 150                 #
 151                 # We can't capture, so we can't open any capture
 152                 # devices, so we won't return any interfaces.
 153                 #
 154                 V_FINDALLDEVS=null
 155                 ;;
 156
 157         *)
 158                 #
 159                 # Assume we just have SIOCGIFCONF.
 160                 # (XXX - on at least later Linux kernels, there's
 161                 # another mechanism, and we should be using that
 162                 # instead.)
 163                 #
 164                 V_FINDALLDEVS=gifc
 165                 ;;
 166         esac])
 167
 168 AC_MSG_CHECKING(if --enable-ipv6 option is specified)
 169 AC_ARG_ENABLE(ipv6, [  --enable-ipv6           build IPv6-capable version])
 170 if test "$enable_ipv6" = "yes"; then
 171         AC_DEFINE(INET6,1,[IPv6])
 172 fi
 173 AC_MSG_RESULT(${enable_ipv6-no})
 174
 175 AC_MSG_CHECKING(whether to build optimizer debugging code)
 176 AC_ARG_ENABLE(optimizer-dbg, [  --enable-optimizer-dbg  build optimizer debugging code])
 177 if test "$enable_optimizer_dbg" = "yes"; then
 178         AC_DEFINE(BDEBUG,1,[Enable optimizer debugging])
 179 fi
 180 AC_MSG_RESULT(${enable_optimizer_dbg-no})
 181
 182 AC_MSG_CHECKING(whether to build parser debugging code)
 183 AC_ARG_ENABLE(yydebug, [  --enable-yydebug        build parser debugging code])
 184 if test "$enable_yydebug" = "yes"; then
 185         AC_DEFINE(YYDEBUG,1,[Enable parser debugging])
 186 fi
 187 AC_MSG_RESULT(${enable_yydebug-no})
 188
 189 case "$V_PCAP" in
 190
 191 dlpi)
 192         AC_CHECK_HEADERS(sys/bufmod.h sys/dlpi_ext.h)
 193         AC_MSG_CHECKING(for /dev/dlpi device)
 194         if test -c /dev/dlpi ; then
 195                 AC_MSG_RESULT(yes)
 196                 AC_DEFINE(HAVE_DEV_DLPI, 1, [define if you have a /dev/dlpi])
 197         else
 198                 AC_MSG_RESULT(no)
 199                 dir="/dev/dlpi"
 200                 AC_MSG_CHECKING(for $dir directory)
 201                 if test -d $dir ; then
 202                         AC_MSG_RESULT(yes)
 203                         AC_DEFINE_UNQUOTED(PCAP_DEV_PREFIX, "$dir", [/dev/dlpi directory])
 204                 else
 205                         AC_MSG_RESULT(no)
 206                 fi
 207         fi
 208         ;;
 209
 210 linux)
 211         AC_MSG_CHECKING(Linux kernel version)
 212         if test "$cross_compiling" = yes; then
 213                 AC_CACHE_VAL(ac_cv_linux_vers,
 214                     ac_cv_linux_vers=unknown)
 215         else
 216                 AC_CACHE_VAL(ac_cv_linux_vers,
 217                     ac_cv_linux_vers=`uname -r 2>&1 | \
 218                         sed -n -e '$s/.* //' -e '$s/\..*//p'`)
 219         fi
 220         AC_MSG_RESULT($ac_cv_linux_vers)
 221         if test $ac_cv_linux_vers = unknown ; then
 222                 AC_MSG_ERROR(cannot determine linux version when cross-compiling)
 223         fi
 224         if test $ac_cv_linux_vers -lt 2 ; then
 225                 AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info)
 226         fi
 227         AC_LBL_TPACKET_STATS
 228         ;;
 229
 230 dag)
 231         V_DEFS="$V_DEFS -DDAG_ONLY"
 232         ;;
 233
 234 null)
 235         AC_MSG_WARN(cannot determine packet capture interface)
 236         AC_MSG_WARN((see the INSTALL doc for more info))
 237         ;;
 238
 239 esac
 240
 241 AC_MSG_CHECKING(whether we have /proc/net/dev)
 242 if test -r /proc/net/dev ; then
 243         ac_cv_lbl_proc_net_dev=yes
 244 else
 245         ac_cv_lbl_proc_net_dev=no
 246 fi
 247 if test $ac_cv_lbl_proc_net_dev = yes; then
 248         AC_DEFINE(HAVE_PROC_NET_DEV, 1, [define if you have a /proc/net/dev])
 249 fi
 250 AC_MSG_RESULT($ac_cv_lbl_proc_net_dev)
 251
 252 AC_ARG_WITH(dag, [  --with-dag[=DIR]        include DAG support (located in directory DIR, if supplied).  [default=yes, on BSD and Linux, if present]],
 253 [
 254         if test "$withval" = no
 255         then
 256                 want_dag=no
 257         elif test "$withval" = yes
 258         then
 259                 want_dag=yes
 260                 dag_root=
 261         else
 262                 want_dag=yes
 263                 dag_root=$withval
 264         fi
 265 ],[
 266         #
 267         # Use DAG API if present, otherwise don't
 268         #
 269         want_dag=ifpresent
 270         dag_root=/root/dag
 271 ])
 272 ac_cv_lbl_dag_api=no
 273 case "$V_PCAP" in
 274 linux|bpf|dag)
 275         #
 276         # We support the DAG API on Linux or BSD, or if we're building a
 277         # DAG-only libpcap.
 278         #
 279         ;;
 280 *)
 281         #
 282         # If the user explicitly requested DAG, tell them it's not
 283         # supported.
 284         #
 285         # If they expressed no preference, don't include it.
 286         #
 287         if test $want_dag = yes; then
 288                 AC_MSG_ERROR(DAG support only available with 'linux' 'bpf' and 'dag' packet capture types)
 289         elif test $want_dag = yes; then
 290                 want_dag=no
 291         fi
 292         ;;
 293 esac
 294
 295 if test "$with_dag" != no; then
 296         AC_MSG_CHECKING(whether we have DAG API)
 297
 298         if test -z "$dag_root"; then
 299                 dag_root=$srcdir/../dag
 300         fi
 301
 302         if test -r "$dag_root/tools" -a -r "$dag_root/include"; then
 303                 dag_tools_dir="$dag_root/tools"
 304                 dag_include_dir="$dag_root/include"
 305         else
 306                 dag_tools_dir="$dag_root"
 307                 dag_include_dir="$dag_root"
 308         fi
 309
 310         ac_cv_lbl_dag_api=no
 311         if test -r "$dag_include_dir/dagapi.h" -a -r "$dag_tools_dir/dagapi.o" -a -r "$dag_tools_dir/dagopts.o"; then
 312                 V_INCLS="$V_INCLS -I $dag_include_dir"
 313                 V_LIBS="$V_LIBS $dag_tools_dir/dagapi.o $dag_tools_dir/dagopts.o"
 314                 if test "$V_PCAP" != dag ; then
 315                          SSRC="pcap-dag.c"
 316                 fi
 317                 ac_cv_lbl_dag_api=yes
 318         fi
 319         if test -r "$dag_root/lib/dagreg.c"; then # DAG 2.5.x
 320                 if test -r "$dag_tools_dir/dagreg.o"; then
 321                         V_LIBS="$V_LIBS $dag_tools_dir/dagreg.o"
 322                 else
 323                         ac_cv_lbl_dag_api=no
 324                 fi
 325         fi
 326         dag_version=
 327         if test $ac_cv_lbl_dag_api = yes -a -r "$dag_root/VERSION"; then
 328                 dag_version=" (`cat $dag_root/VERSION`)"
 329         fi
 330         AC_MSG_RESULT($ac_cv_lbl_dag_api$dag_version)
 331         if test $ac_cv_lbl_dag_api = no; then
 332                 if test "$want_dag" = yes; then
 333                         AC_MSG_ERROR(DAG API not found under directory $dag_root; use --without-dag)
 334                 fi
 335         else
 336                 AC_DEFINE(HAVE_DAG_API, 1, [define if you have a DAG API])
 337         fi
 338 fi
 339
 340 if test "$V_PCAP" = dag -a "$ac_cv_lbl_dag_api" = no; then
 341         AC_MSG_ERROR(Specifying the capture type as 'dag' requires the DAG API to be present; use --with-dag=DIR)
 342 fi
 343
 344
 345 AC_LBL_LEX_AND_YACC(V_LEX, V_YACC, pcap_)
 346 if test "$V_LEX" = lex ; then
 347 # Some versions of lex can't handle the definitions section of scanner.l .
 348 # Try lexing it and complain if it can't deal.
 349         AC_CACHE_CHECK([for capable lex], tcpdump_cv_capable_lex,
 350                 if lex -t scanner.l > /dev/null 2>&1; then
 351                         tcpdump_cv_capable_lex=yes
 352                 else
 353                         tcpdump_cv_capable_lex=insufficient
 354                 fi)
 355         if test $tcpdump_cv_capable_lex = insufficient ; then
 356                 AC_MSG_ERROR([Your operating system's lex is insufficient to compile
 357  libpcap.  flex is a lex replacement that has many advantages, including
 358  being able to compile libpcap.  For more information, see
 359  http://www.gnu.org/software/flex/flex.html .])
 360         fi
 361 fi
 362
 363 DYEXT="so"
 364 case "$host_os" in
 365
 366 aix*)
 367         dnl Workaround to enable certain features
 368         AC_DEFINE(_SUN,1,[define on AIX to get certain functions])
 369         ;;
 370
 371 hpux9*)
 372         AC_DEFINE(HAVE_HPUX9,1,[on HP-UX 9.x])
 373         ;;
 374
 375 hpux10.0*)
 376         ;;
 377
 378 hpux10.1*)
 379         ;;
 380
 381 hpux*)
 382         dnl HPUX 10.20 and above is similar to HPUX 9, but
 383         dnl not the same....
 384         dnl
 385         dnl XXX - DYEXT should be set to "sl" if this is building
 386         dnl for 32-bit PA-RISC, but should be left as "so" for
 387         dnl 64-bit PA-RISC or, I suspect, IA-64.
 388         AC_DEFINE(HAVE_HPUX10_20,1,[on HP-UX 10.20])
 389         ;;
 390
 391 sinix*)
 392         AC_MSG_CHECKING(if SINIX compiler defines sinix)
 393         AC_CACHE_VAL(ac_cv_cc_sinix_defined,
 394                 AC_TRY_COMPILE(
 395                     [],
 396                     [int i = sinix;],
 397                     ac_cv_cc_sinix_defined=yes,
 398                     ac_cv_cc_sinix_defined=no))
 399             AC_MSG_RESULT($ac_cv_cc_sinix_defined)
 400             if test $ac_cv_cc_sinix_defined = no ; then
 401                     AC_DEFINE(sinix,1,[on sinix])
 402             fi
 403         ;;
 404
 405 solaris*)
 406         AC_DEFINE(HAVE_SOLARIS,1,[On solaris])
 407         ;;
 408 darwin*)
 409         DYEXT="dylib"
 410         V_CCOPT="$V_CCOPT -fno-common"
 411         ;;
 412 esac
 413
 414 AC_PROG_RANLIB
 415
 416 AC_LBL_DEVEL(V_CCOPT)
 417
 418 AC_LBL_SOCKADDR_SA_LEN
 419
 420 AC_LBL_SOCKADDR_STORAGE
 421
 422 AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1
 423
 424 AC_LBL_UNALIGNED_ACCESS
 425
 426 rm -f net
 427 ln -s ${srcdir}/bpf/net net
 428
 429 AC_SUBST(V_CCOPT)
 430 AC_SUBST(V_DEFS)
 431 AC_SUBST(V_INCLS)
 432 AC_SUBST(V_LIBS)
 433 AC_SUBST(V_LEX)
 434 AC_SUBST(V_PCAP)
 435 AC_SUBST(V_FINDALLDEVS)
 436 AC_SUBST(V_RANLIB)
 437 AC_SUBST(V_YACC)
 438 AC_SUBST(SSRC)
 439 AC_SUBST(DYEXT)
 440
 441 AC_PROG_INSTALL
 442
 443 AC_CONFIG_HEADER(config.h)
 444
 445 AC_OUTPUT(Makefile)
 446
 447 if test -f .devel ; then
 448         make depend
 449 fi
 450 exit 0