dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.100.2.4 2004/03/28 21:43:34 fenner Exp $ (LBL) dnl dnl Copyright (c) 1994, 1995, 1996, 1997 dnl The Regents of the University of California. All rights reserved. dnl dnl Process this file with autoconf to produce a configure script. dnl AC_REVISION($Revision: 1.100.2.4 $) AC_PREREQ(2.50) AC_INIT(pcap.c) AC_CANONICAL_SYSTEM AC_LBL_C_INIT(V_CCOPT, V_INCLS, V_LIBS) AC_LBL_C_INLINE AC_C___ATTRIBUTE__ AC_LBL_CHECK_TYPE(u_int8_t, u_char) AC_LBL_CHECK_TYPE(u_int16_t, u_short) AC_LBL_CHECK_TYPE(u_int32_t, u_int) dnl dnl libpcap doesn't itself use ; however, the test program dnl in "AC_LBL_FIXINCLUDES" in "aclocal.m4" uses it, so we have to dnl test for it and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise dnl "AC_LBL_FIXINCLUDES" won't work on some platforms such as Solaris. dnl AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h ifaddrs.h limits.h) AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include #include ]) AC_LBL_FIXINCLUDES AC_CHECK_FUNCS(ether_hostton strerror strlcpy) needsnprintf=no AC_CHECK_FUNCS(vsnprintf snprintf,, [needsnprintf=yes]) if test $needsnprintf = yes; then AC_LIBOBJ(snprintf) fi dnl to pacify those who hate protochain insn AC_MSG_CHECKING(if --disable-protochain option is specified) AC_ARG_ENABLE(protochain, [ --disable-protochain disable \"protochain\" insn]) case "x$enable_protochain" in xyes) enable_protochain=enabled ;; xno) enable_protochain=disabled ;; x) enable_protochain=enabled ;; esac if test "$enable_protochain" = "disabled"; then AC_DEFINE(NO_PROTOCHAIN,1,[do not use protochain]) fi AC_MSG_RESULT(${enable_protochain}) dnl dnl Not all versions of test support -c (character special) but it's a dnl better way of testing since the device might be protected. So we dnl check in our normal order using -r and then check the for the /dev dnl guys again using -c. dnl dnl XXX This could be done for cross-compiling, but for now it's not. dnl if test -z "$with_pcap" && test "$cross_compiling" = yes; then AC_MSG_ERROR(pcap type not determined when cross-compiling; use --with-pcap=...) fi AC_ARG_WITH(pcap, [ --with-pcap=TYPE use packet capture TYPE]) AC_MSG_CHECKING(packet capture type) if test ! -z "$with_pcap" ; then V_PCAP="$withval" elif test -r /dev/bpf0 ; then V_PCAP=bpf elif test -r /usr/include/net/pfilt.h ; then V_PCAP=pf elif test -r /dev/enet ; then V_PCAP=enet elif test -r /dev/nit ; then V_PCAP=snit elif test -r /usr/include/sys/net/nit.h ; then V_PCAP=nit elif test -r /usr/include/linux/socket.h ; then V_PCAP=linux elif test -r /usr/include/net/raw.h ; then V_PCAP=snoop elif test -r /usr/include/odmi.h ; then # # On AIX, the BPF devices might not yet be present - they're # created the first time libpcap runs after booting. # We check for odmi.h instead. # V_PCAP=bpf elif test -r /usr/include/sys/dlpi.h ; then V_PCAP=dlpi elif test -c /dev/bpf0 ; then # check again in case not readable V_PCAP=bpf elif test -c /dev/enet ; then # check again in case not readable V_PCAP=enet elif test -c /dev/nit ; then # check again in case not readable V_PCAP=snit else V_PCAP=null fi AC_MSG_RESULT($V_PCAP) dnl dnl Now figure out how we get a list of interfaces and addresses. dnl AC_CHECK_FUNC(getifaddrs,[ # # We have "getifaddrs()", so we use that to get the list # V_FINDALLDEVS=getad ],[ # # Well, we don't have "getifaddrs()", so we have to use some # other mechanism; determine what that mechanism is. # # The first thing we use is the type of capture mechanism, # which is somewhat of a proxy for the OS we're using. # case "$V_PCAP" in dlpi) # # This might be Solaris 8 or later, with SIOCGLIFCONF, # or it might be some other OS, with just SIOCGIFCONF. # AC_MSG_CHECKING(whether we have SIOCGLIFCONF) AC_CACHE_VAL(ac_cv_lbl_have_siocglifconf, AC_TRY_COMPILE( [#include #include #include #include #include ], [ioctl(0, SIOCGLIFCONF, (char *)0);], ac_cv_lbl_have_siocglifconf=yes, ac_cv_lbl_have_siocglifconf=no)) AC_MSG_RESULT($ac_cv_lbl_have_siocglifconf) if test $ac_cv_lbl_have_siocglifconf = yes ; then V_FINDALLDEVS=glifc else V_FINDALLDEVS=gifc fi ;; null) # # We can't capture, so we can't open any capture # devices, so we won't return any interfaces. # V_FINDALLDEVS=null ;; *) # # Assume we just have SIOCGIFCONF. # (XXX - on at least later Linux kernels, there's # another mechanism, and we should be using that # instead.) # V_FINDALLDEVS=gifc ;; esac]) AC_MSG_CHECKING(if --enable-ipv6 option is specified) AC_ARG_ENABLE(ipv6, [ --enable-ipv6 build IPv6-capable version]) if test "$enable_ipv6" = "yes"; then AC_DEFINE(INET6,1,[IPv6]) fi AC_MSG_RESULT(${enable_ipv6-no}) AC_MSG_CHECKING(whether to build optimizer debugging code) AC_ARG_ENABLE(optimizer-dbg, [ --enable-optimizer-dbg build optimizer debugging code]) if test "$enable_optimizer_dbg" = "yes"; then AC_DEFINE(BDEBUG,1,[Enable optimizer debugging]) fi AC_MSG_RESULT(${enable_optimizer_dbg-no}) AC_MSG_CHECKING(whether to build parser debugging code) AC_ARG_ENABLE(yydebug, [ --enable-yydebug build parser debugging code]) if test "$enable_yydebug" = "yes"; then AC_DEFINE(YYDEBUG,1,[Enable parser debugging]) fi AC_MSG_RESULT(${enable_yydebug-no}) case "$V_PCAP" in dlpi) AC_CHECK_HEADERS(sys/bufmod.h sys/dlpi_ext.h) AC_MSG_CHECKING(for /dev/dlpi device) if test -c /dev/dlpi ; then AC_MSG_RESULT(yes) AC_DEFINE(HAVE_DEV_DLPI, 1, [define if you have a /dev/dlpi]) else AC_MSG_RESULT(no) dir="/dev/dlpi" AC_MSG_CHECKING(for $dir directory) if test -d $dir ; then AC_MSG_RESULT(yes) AC_DEFINE_UNQUOTED(PCAP_DEV_PREFIX, "$dir", [/dev/dlpi directory]) else AC_MSG_RESULT(no) fi fi ;; linux) AC_MSG_CHECKING(Linux kernel version) if test "$cross_compiling" = yes; then AC_CACHE_VAL(ac_cv_linux_vers, ac_cv_linux_vers=unknown) else AC_CACHE_VAL(ac_cv_linux_vers, ac_cv_linux_vers=`uname -r 2>&1 | \ sed -n -e '$s/.* //' -e '$s/\..*//p'`) fi AC_MSG_RESULT($ac_cv_linux_vers) if test $ac_cv_linux_vers = unknown ; then AC_MSG_ERROR(cannot determine linux version when cross-compiling) fi if test $ac_cv_linux_vers -lt 2 ; then AC_MSG_ERROR(version 2 or higher required; see the INSTALL doc for more info) fi AC_LBL_TPACKET_STATS ;; dag) V_DEFS="$V_DEFS -DDAG_ONLY" ;; null) AC_MSG_WARN(cannot determine packet capture interface) AC_MSG_WARN((see the INSTALL doc for more info)) ;; esac AC_MSG_CHECKING(whether we have /proc/net/dev) if test -r /proc/net/dev ; then ac_cv_lbl_proc_net_dev=yes else ac_cv_lbl_proc_net_dev=no fi if test $ac_cv_lbl_proc_net_dev = yes; then AC_DEFINE(HAVE_PROC_NET_DEV, 1, [define if you have a /proc/net/dev]) fi AC_MSG_RESULT($ac_cv_lbl_proc_net_dev) AC_ARG_WITH(dag, [ --with-dag[=DIR] include DAG support (located in directory DIR, if supplied). [default=yes, on BSD and Linux, if present]], [ if test "$withval" = no then want_dag=no elif test "$withval" = yes then want_dag=yes dag_root= else want_dag=yes dag_root=$withval fi ],[ # # Use DAG API if present, otherwise don't # want_dag=ifpresent dag_root=/root/dag ]) ac_cv_lbl_dag_api=no case "$V_PCAP" in linux|bpf|dag) # # We support the DAG API on Linux or BSD, or if we're building a # DAG-only libpcap. # ;; *) # # If the user explicitly requested DAG, tell them it's not # supported. # # If they expressed no preference, don't include it. # if test $want_dag = yes; then AC_MSG_ERROR(DAG support only available with 'linux' 'bpf' and 'dag' packet capture types) elif test $want_dag = yes; then want_dag=no fi ;; esac if test "$with_dag" != no; then AC_MSG_CHECKING(whether we have DAG API) if test -z "$dag_root"; then dag_root=$srcdir/../dag fi if test -r "$dag_root/tools" -a -r "$dag_root/include"; then dag_tools_dir="$dag_root/tools" dag_include_dir="$dag_root/include" else dag_tools_dir="$dag_root" dag_include_dir="$dag_root" fi ac_cv_lbl_dag_api=no if test -r "$dag_include_dir/dagapi.h" -a -r "$dag_tools_dir/dagapi.o" -a -r "$dag_tools_dir/dagopts.o"; then V_INCLS="$V_INCLS -I $dag_include_dir" V_LIBS="$V_LIBS $dag_tools_dir/dagapi.o $dag_tools_dir/dagopts.o" if test "$V_PCAP" != dag ; then SSRC="pcap-dag.c" fi ac_cv_lbl_dag_api=yes fi if test -r "$dag_root/lib/dagreg.c"; then # DAG 2.5.x if test -r "$dag_tools_dir/dagreg.o"; then V_LIBS="$V_LIBS $dag_tools_dir/dagreg.o" else ac_cv_lbl_dag_api=no fi fi dag_version= if test $ac_cv_lbl_dag_api = yes -a -r "$dag_root/VERSION"; then dag_version=" (`cat $dag_root/VERSION`)" fi AC_MSG_RESULT($ac_cv_lbl_dag_api$dag_version) if test $ac_cv_lbl_dag_api = no; then if test "$want_dag" = yes; then AC_MSG_ERROR(DAG API not found under directory $dag_root; use --without-dag) fi else AC_DEFINE(HAVE_DAG_API, 1, [define if you have a DAG API]) fi fi if test "$V_PCAP" = dag -a "$ac_cv_lbl_dag_api" = no; then AC_MSG_ERROR(Specifying the capture type as 'dag' requires the DAG API to be present; use --with-dag=DIR) fi AC_LBL_LEX_AND_YACC(V_LEX, V_YACC, pcap_) if test "$V_LEX" = lex ; then # Some versions of lex can't handle the definitions section of scanner.l . # Try lexing it and complain if it can't deal. AC_CACHE_CHECK([for capable lex], tcpdump_cv_capable_lex, if lex -t scanner.l > /dev/null 2>&1; then tcpdump_cv_capable_lex=yes else tcpdump_cv_capable_lex=insufficient fi) if test $tcpdump_cv_capable_lex = insufficient ; then AC_MSG_ERROR([Your operating system's lex is insufficient to compile libpcap. flex is a lex replacement that has many advantages, including being able to compile libpcap. For more information, see http://www.gnu.org/software/flex/flex.html .]) fi fi case "$host_os" in aix*) dnl Workaround to enable certain features AC_DEFINE(_SUN,1,[define on AIX to get certain functions]) ;; hpux9*) AC_DEFINE(HAVE_HPUX9,1,[on HP-UX 9.x]) ;; hpux10.0*) ;; hpux10.1*) ;; hpux*) dnl HPUX 10.20 and above is similar to HPUX 9... AC_DEFINE(HAVE_HPUX10_20,1,[on HP-UX 10.20]) ;; sinix*) AC_MSG_CHECKING(if SINIX compiler defines sinix) AC_CACHE_VAL(ac_cv_cc_sinix_defined, AC_TRY_COMPILE( [], [int i = sinix;], ac_cv_cc_sinix_defined=yes, ac_cv_cc_sinix_defined=no)) AC_MSG_RESULT($ac_cv_cc_sinix_defined) if test $ac_cv_cc_sinix_defined = no ; then AC_DEFINE(sinix,1,[on sinix]) fi ;; solaris*) AC_DEFINE(HAVE_SOLARIS,1,[On solaris]) ;; esac AC_PROG_RANLIB AC_LBL_DEVEL(V_CCOPT) AC_LBL_SOCKADDR_SA_LEN AC_LBL_SOCKADDR_STORAGE AC_LBL_HP_PPA_INFO_T_DL_MODULE_ID_1 AC_LBL_UNALIGNED_ACCESS rm -f net ln -s ${srcdir}/bpf/net net AC_SUBST(V_CCOPT) AC_SUBST(V_DEFS) AC_SUBST(V_INCLS) AC_SUBST(V_LIBS) AC_SUBST(V_LEX) AC_SUBST(V_PCAP) AC_SUBST(V_FINDALLDEVS) AC_SUBST(V_RANLIB) AC_SUBST(V_YACC) AC_SUBST(SSRC) AC_PROG_INSTALL AC_CONFIG_HEADER(config.h) AC_OUTPUT(Makefile) if test -f .devel ; then make depend fi exit 0