dnl @(#) $Header: /tcpdump/master/libpcap/configure.in,v 1.125 2005-06-20 21:27:08 guy 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: 1.125 $) AC_PREREQ(2.50) AC_INIT(pcap.c) AC_CANONICAL_SYSTEM AC_LBL_C_INIT(V_CCOPT, V_INCLS, V_LIBS) AC_LBL_C_INLINE AC_C___ATTRIBUTE__ AC_LBL_CHECK_TYPE(u_int8_t, u_char) AC_LBL_CHECK_TYPE(u_int16_t, u_short) AC_LBL_CHECK_TYPE(u_int32_t, u_int) dnl dnl libpcap doesn't itself use ; however, the test program dnl in "AC_LBL_FIXINCLUDES" in "aclocal.m4" uses it, so we have to dnl test for it and set "HAVE_SYS_IOCCOM_H" if we have it, otherwise dnl "AC_LBL_FIXINCLUDES" won't work on some platforms such as Solaris. dnl AC_CHECK_HEADERS(sys/ioccom.h sys/sockio.h limits.h) AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include #include ]) if test "$ac_cv_header_netinet_if_ether_h" != yes; then # # The simple test didn't work. # Do we need to include first? # Unset ac_cv_header_netinet_if_ether_h so we don't # treat the previous failure as a cached value and # suppress the next test. # AC_MSG_NOTICE([Rechecking with some additional includes]) unset ac_cv_header_netinet_if_ether_h AC_CHECK_HEADERS(netinet/if_ether.h, , , [#include #include #include struct mbuf; struct rtentry; #include ]) fi AC_LBL_FIXINCLUDES AC_CHECK_FUNCS(strerror strlcpy) needsnprintf=no AC_CHECK_FUNCS(vsnprintf snprintf,, [needsnprintf=yes]) if test $needsnprintf = yes; then AC_LIBOBJ(snprintf) fi # # Do this before checking for ether_hostton(), as it's a # "gethostbyname() -ish function". # AC_LBL_LIBRARY_NET # # You are in a twisty little maze of UN*Xes, all different. # Some might not have ether_hostton(). # Some might have it, but not declare it in any header file. # Some might have it, but declare it in . # Some might have it, but declare it in # (And some might have it but document it as something declared in # , although appears to work.) # # Before you is a C compiler. # AC_CHECK_FUNCS(ether_hostton) if test "$ac_cv_func_ether_hostton" = yes; then # # OK, we have ether_hostton(). Do we have ? # if test "$ac_cv_header_netinet_if_ether_h" = yes; then # # Yes. Does it declare ether_hostton()? # AC_CHECK_DECL(ether_hostton, [ AC_DEFINE(NETINET_IF_ETHER_H_DECLARES_ETHER_HOSTTON,, [Define to 1 if netinet/if_ether.h declares `ether_hostton']) ],, [ #include #include #include #include struct mbuf; struct rtentry; #include #include ]) fi # # Did that succeed? # if test "$ac_cv_have_decl_ether_hostton" != yes; then # # No, how about , as on Linux? # AC_CHECK_HEADERS(netinet/ether.h) if test "$ac_cv_header_netinet_ether_h" = yes; then # # We have it - does it declare ether_hostton()? # Unset ac_cv_have_decl_ether_hostton so we don't # treat the previous failure as a cached value and # suppress the next test. # unset ac_cv_have_decl_ether_hostton AC_CHECK_DECL(ether_hostton, [ AC_DEFINE(NETINET_ETHER_H_DECLARES_ETHER_HOSTTON,, [Define to 1 if netinet/ether.h declares `ether_hostton']) ],, [ #include ]) fi fi # # Is ether_hostton() declared? # if test "$ac_cv_have_decl_ether_hostton" != yes; then # # No, we'll have to declare it ourselves. # Do we have "struct ether_addr"? # AC_CHECK_TYPES(struct ether_addr,,, [ #include #include #include #include struct mbuf; struct rtentry; #include #include ]) AC_DEFINE(HAVE_DECL_ETHER_HOSTTON, 0, [Define to 1 if you have the declaration of `ether_hostton', and to 0 if you don't.]) else AC_DEFINE(HAVE_DECL_ETHER_HOSTTON, 1, [Define to 1 if you have the declaration of `ether_hostton', and to 0 if you don't.]) fi 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 if we support capturing. Don't bother if we don't support dnl capturing. dnl if test "$V_PCAP" = null then # # We can't capture, so we can't open any capture # devices, so we won't return any interfaces. # V_FINDALLDEVS=null else AC_CHECK_FUNC(getifaddrs,[ # # We have "getifaddrs()"; make sure we have # as well, just in case some platform is really weird. # AC_CHECK_HEADER(ifaddrs.h,[ # # We have the header, so we use "getifaddrs()" to # get the list of interfaces. # V_FINDALLDEVS=getad ],[ # # We don't have the header - give up. # XXX - we could also fall back on some other # mechanism, but, for now, this'll catch this # problem so that we can at least try to figure # out something to do on systems with "getifaddrs()" # but without "ifaddrs.h", if there is something # we can do on those systems. # AC_MSG_ERROR([Your system has getifaddrs() but doesn't have a usable .]) ]) ],[ # # Well, we don't have "getifaddrs()", so we have to use # some other mechanism; determine what that mechanism is. # # The first thing we use is the type of capture mechanism, # which is somewhat of a proxy for the OS we're using. # case "$V_PCAP" in dlpi) # # This might be Solaris 8 or later, with # SIOCGLIFCONF, or it might be some other OS # or some older version of Solaris, 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 $ac_cv_lbl_have_siocglifconf = yes ; then V_FINDALLDEVS=glifc else V_FINDALLDEVS=gifc fi ;; *) # # Assume we just have SIOCGIFCONF. # (XXX - on at least later Linux kernels, there's # another mechanism, and we should be using that # instead.) # V_FINDALLDEVS=gifc ;; esac]) fi AC_MSG_CHECKING(if --enable-ipv6 option is specified) AC_ARG_ENABLE(ipv6, [ --enable-ipv6 build IPv6-capable version]) if test "$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" ;; septel) V_DEFS="$V_DEFS -DSEPTEL_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) # Check for Endace DAG card support. AC_ARG_WITH([dag], [ --with-dag[[=DIR]] include Endace DAG support ("yes", "no" or DIR; default="yes" on BSD and Linux if present)], [ if test "$withval" = no then # User doesn't want DAG support. want_dag=no elif test "$withval" = yes then # User wants DAG support but hasn't specified a directory. want_dag=yes else # User wants DAG support and has specified a directory, so use the provided value. want_dag=yes dag_root=$withval fi ],[ # # Use DAG API if present, otherwise don't # want_dag=ifpresent ]) AC_ARG_WITH([dag-includes], [ --with-dag-includes=DIR Endace DAG include directory], [ # User wants DAG support and has specified a header directory, so use the provided value. want_dag=yes dag_include_dir=$withval ],[]) AC_ARG_WITH([dag-libraries], [ --with-dag-libraries=DIR Endace DAG library directory], [ # User wants DAG support and has specified a library directory, so use the provided value. want_dag=yes dag_lib_dir=$withval ],[]) case "$V_PCAP" in linux|bpf|dag) # # We support the DAG API if we're 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 is only available with 'linux' 'bpf' and 'dag' packet capture types]) elif test $want_dag = yes; then want_dag=no fi ;; esac ac_cv_lbl_dag_api=no if test "$want_dag" != no; then AC_MSG_CHECKING([whether we have DAG API headers]) # If necessary, set default paths for DAG API headers and libraries. if test -z "$dag_root"; then dag_root=/usr/local fi if test -z "$dag_include_dir"; then dag_include_dir="$dag_root/include" fi if test -z "$dag_lib_dir"; then dag_lib_dir="$dag_root/lib" fi if test -z "$dag_tools_dir"; then dag_tools_dir="$dag_root/tools" fi if test -r $dag_include_dir/dagapi.h; then ac_cv_lbl_dag_api=yes fi AC_MSG_RESULT([$ac_cv_lbl_dag_api ($dag_include_dir)]) fi if test $ac_cv_lbl_dag_api = yes; then AC_MSG_CHECKING([dagapi.o]) dagapi_obj=no if test -r $dag_tools_dir/dagapi.o; then # 2.4.x. dagapi_obj=$dag_tools_dir/dagapi.o elif test -r $dag_lib_dir/dagapi.o; then # 2.5.x. dagapi_obj=$dag_lib_dir/dagapi.o elif test -r $dag_lib_dir/libdag.a; then # 2.5.x. ar x $dag_lib_dir/libdag.a dagapi.o if test -r ./dagapi.o; then dagapi_obj=./dagapi.o fi fi if test $dagapi_obj = no; then AC_MSG_RESULT([no (checked $dag_lib_dir $dag_tools_dir $dag_lib_dir/libdag.a)]) ac_cv_lbl_dag_api=no else AC_MSG_RESULT([yes ($dagapi_obj)]) fi fi if test $ac_cv_lbl_dag_api = yes; then AC_MSG_CHECKING([dagopts.o]) dagopts_obj=no if test -r $dag_tools_dir/dagopts.o; then # 2.4.x. dagopts_obj=$dag_tools_dir/dagopts.o elif test -r $dag_lib_dir/dagopts.o; then # 2.5.x. dagopts_obj=$dag_lib_dir/dagopts.o elif test -r $dag_lib_dir/libdag.a; then # 2.5.x. ar x $dag_lib_dir/libdag.a dagopts.o if test -r ./dagopts.o; then dagopts_obj=./dagopts.o fi fi if test $dagopts_obj = no; then AC_MSG_RESULT([no (checked $dag_lib_dir $dag_tools_dir $dag_lib_dir/libdag.a)]) ac_cv_lbl_dag_api=no else AC_MSG_RESULT([yes ($dagopts_obj)]) fi fi if test $ac_cv_lbl_dag_api = yes; then # Under 2.5.x only we need to add dagreg.o. if test -r $dag_include_dir/dagreg.h; then AC_MSG_CHECKING([dagreg.o]) dagreg_obj=no if test -r $dag_lib_dir/dagreg.o; then # Object file is ready and waiting. dagreg_obj=$dag_lib_dir/dagreg.o elif test -r $dag_lib_dir/libdag.a; then # Extract from libdag.a. ar x $dag_lib_dir/libdag.a dagreg.o if test -r ./dagreg.o; then dagreg_obj=./dagreg.o fi fi if test $dagreg_obj = no; then AC_MSG_RESULT([no (checked $dag_lib_dir $dag_lib_dir/libdag.a)]) ac_cv_lbl_dag_api=no else AC_MSG_RESULT([yes ($dagreg_obj)]) fi fi fi if test $ac_cv_lbl_dag_api = yes; then V_INCLS="$V_INCLS -I$dag_include_dir" V_LIBS="$V_LIBS $dagapi_obj $dagopts_obj $dagreg_obj" if test $V_PCAP != dag ; then SSRC="pcap-dag.c" fi # See if we can find a general version string. # Don't need to save and restore LIBS to prevent -ldag being # included if there's a found-action (arg 3). saved_ldflags=$LDFLAGS LDFLAGS="-L$dag_lib_dir" AC_CHECK_LIB([dag], [dag_attach_stream], [dag_version="2.5.x"], [dag_version="2.4.x"]) LDFLAGS=$saved_ldflags # See if we can find a specific version string. AC_MSG_CHECKING([the DAG API version]) if test -r "$dag_root/VERSION"; then dag_version="`cat $dag_root/VERSION`" fi AC_MSG_RESULT([$dag_version]) AC_DEFINE(HAVE_DAG_API, 1, [define if you have the DAG API]) fi if test $ac_cv_lbl_dag_api = no; then if test "$want_dag" = yes; then # User wanted DAG support but we couldn't find it. AC_MSG_ERROR([DAG API requested, but not found at $dag_root: use --without-dag]) fi if test "$V_PCAP" = dag; then # User requested "dag" capture type but the DAG API wasn't # found. AC_MSG_ERROR([Specifying the capture type as "dag" requires the DAG API to be present; use the --with-dag options to specify the location. (Try "./configure --help" for more information.)]) fi fi AC_ARG_WITH(septel, [ --with-septel[=DIR] include Septel support (located in directory DIR, if supplied). [default=yes, on Linux, if present]], [ if test "$withval" = no then want_septel=no elif test "$withval" = yes then want_septel=yes septel_root= else want_septel=yes septel_root=$withval fi ],[ # # Use Septel API if present, otherwise don't # want_septel=ifpresent septel_root=./../septel ]) ac_cv_lbl_septel_api=no case "$V_PCAP" in linux|septel) # # We support the Septel API if we're on Linux, or if we're building # a Septel-only libpcap. # ;; *) # # If the user explicitly requested Septel, tell them it's not # supported. # # If they expressed no preference, don't include it. # if test $want_septel = yes; then AC_MSG_ERROR(Septel support only available with 'linux' and 'septel' packet capture types) elif test $want_septel = yes; then want_septel=no fi ;; esac if test "$with_septel" != no; then AC_MSG_CHECKING(whether we have Septel API) if test -z "$septel_root"; then septel_root=$srcdir/../septel fi septel_tools_dir="$septel_root" septel_include_dir="$septel_root/INC" DEF="-DHAVE_SEPTEL_API" ac_cv_lbl_septel_api=no if test -r "$septel_include_dir/msg.h"; then V_INCLS="$V_INCLS -I$septel_include_dir" V_DEFS="$V_DEFS $DEF" V_LIBS="$V_LIBS $septel_tools_dir/asciibin.o $septel_tools_dir/bit2byte.o $septel_tools_dir/confirm.o $septel_tools_dir/fmtmsg.o $septel_tools_dir/gct_unix.o $septel_tools_dir/hqueue.o $septel_tools_dir/ident.o $septel_tools_dir/mem.o $septel_tools_dir/pack.o $septel_tools_dir/parse.o $septel_tools_dir/pool.o $septel_tools_dir/sdlsig.o $septel_tools_dir/strtonum.o $septel_tools_dir/timer.o $septel_tools_dir/trace.o " if test "$V_PCAP" != septel ; then SSRC="pcap-septel.c" fi ac_cv_lbl_septel_api=yes fi AC_MSG_RESULT($ac_cv_lbl_septel_api) if test $ac_cv_lbl_septel_api = no; then if test "$want_septel" = yes; then AC_MSG_ERROR(Septel API not found under directory $septel_root; use --without-septel) fi else AC_DEFINE(HAVE_SEPTEL_API, 1, [define if you have a Septel API]) fi fi if test "$V_PCAP" = septel -a "$ac_cv_lbl_septel_api" = no; then AC_MSG_ERROR(Specifying the capture type as 'septel' requires the Septel API to be present; use --with-septel=DIR) fi AC_LBL_LEX_AND_YACC(V_LEX, V_YACC, pcap_) if test "$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 $tcpdump_cv_capable_lex = insufficient ; then AC_MSG_ERROR([Your operating system's lex is insufficient to compile libpcap. flex is a lex replacement that has many advantages, including being able to compile libpcap. For more information, see http://www.gnu.org/software/flex/flex.html .]) fi fi DYEXT="so" case "$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, but dnl not the same.... dnl dnl XXX - DYEXT should be set to "sl" if this is building dnl for 32-bit PA-RISC, but should be left as "so" for dnl 64-bit PA-RISC or, I suspect, IA-64. AC_DEFINE(HAVE_HPUX10_20_OR_LATER,1,[on HP-UX 10.20 or later]) ;; 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 $ac_cv_cc_sinix_defined = no ; then AC_DEFINE(sinix,1,[on sinix]) fi ;; solaris*) AC_DEFINE(HAVE_SOLARIS,1,[On solaris]) ;; darwin*) DYEXT="dylib" V_CCOPT="$V_CCOPT -fno-common" ;; 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 # # Makefile.in includes rules to generate version.h, so we assume # that it will be generated if autoconf is used. # AC_DEFINE(HAVE_VERSION_H, 1, [define if version.h is generated in the build procedure]) 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_SUBST(DYEXT) AC_PROG_INSTALL AC_CONFIG_HEADER(config.h) AC_OUTPUT(Makefile) if test -f .devel ; then make depend fi exit 0