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Diffstat (limited to 'contrib/traceroute/aclocal.m4')
-rw-r--r-- | contrib/traceroute/aclocal.m4 | 765 |
1 files changed, 0 insertions, 765 deletions
diff --git a/contrib/traceroute/aclocal.m4 b/contrib/traceroute/aclocal.m4 deleted file mode 100644 index 734c748..0000000 --- a/contrib/traceroute/aclocal.m4 +++ /dev/null @@ -1,765 +0,0 @@ -dnl @(#) $Header: aclocal.m4,v 1.73 99/08/14 16:50:02 leres Exp $ (LBL) -dnl -dnl Copyright (c) 1995, 1996, 1997, 1998, 1999 -dnl The Regents of the University of California. All rights reserved. -dnl -dnl Redistribution and use in source and binary forms, with or without -dnl modification, are permitted provided that: (1) source code distributions -dnl retain the above copyright notice and this paragraph in its entirety, (2) -dnl distributions including binary code include the above copyright notice and -dnl this paragraph in its entirety in the documentation or other materials -dnl provided with the distribution, and (3) all advertising materials mentioning -dnl features or use of this software display the following acknowledgement: -dnl ``This product includes software developed by the University of California, -dnl Lawrence Berkeley Laboratory and its contributors.'' Neither the name of -dnl the University nor the names of its contributors may be used to endorse -dnl or promote products derived from this software without specific prior -dnl written permission. -dnl THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED -dnl WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF -dnl MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. -dnl -dnl LBL autoconf macros -dnl - -dnl -dnl Determine which compiler we're using (cc or gcc) -dnl If using gcc, determine the version number -dnl If using cc, require that it support ansi prototypes -dnl If using gcc, use -O2 (otherwise use -O) -dnl If using cc, explicitly specify /usr/local/include -dnl -dnl usage: -dnl -dnl AC_LBL_C_INIT(copt, incls) -dnl -dnl results: -dnl -dnl $1 (copt set) -dnl $2 (incls set) -dnl CC -dnl LDFLAGS -dnl LBL_CFLAGS -dnl -AC_DEFUN(AC_LBL_C_INIT, - [AC_PREREQ(2.12) - AC_BEFORE([$0], [AC_PROG_CC]) - AC_BEFORE([$0], [AC_LBL_FIXINCLUDES]) - AC_BEFORE([$0], [AC_LBL_DEVEL]) - AC_ARG_WITH(gcc, [ --without-gcc don't use gcc]) - $1="-O" - $2="" - if test "${srcdir}" != "." ; then - $2="-I\$\(srcdir\)" - fi - if test "${CFLAGS+set}" = set; then - LBL_CFLAGS="$CFLAGS" - fi - if test -z "$CC" ; then - case "$target_os" in - - bsdi*) - AC_CHECK_PROG(SHLICC2, shlicc2, yes, no) - if test $SHLICC2 = yes ; then - CC=shlicc2 - export CC - fi - ;; - esac - fi - if test -z "$CC" -a "$with_gcc" = no ; then - CC=cc - export CC - fi - AC_PROG_CC - if test "$GCC" != yes ; then - AC_MSG_CHECKING(that $CC handles ansi prototypes) - AC_CACHE_VAL(ac_cv_lbl_cc_ansi_prototypes, - AC_TRY_COMPILE( - [#include <sys/types.h>], - [int frob(int, char *)], - ac_cv_lbl_cc_ansi_prototypes=yes, - ac_cv_lbl_cc_ansi_prototypes=no)) - AC_MSG_RESULT($ac_cv_lbl_cc_ansi_prototypes) - if test $ac_cv_lbl_cc_ansi_prototypes = no ; then - case "$target_os" in - - hpux*) - AC_MSG_CHECKING(for HP-UX ansi compiler ($CC -Aa -D_HPUX_SOURCE)) - savedcflags="$CFLAGS" - CFLAGS="-Aa -D_HPUX_SOURCE $CFLAGS" - AC_CACHE_VAL(ac_cv_lbl_cc_hpux_cc_aa, - AC_TRY_COMPILE( - [#include <sys/types.h>], - [int frob(int, char *)], - ac_cv_lbl_cc_hpux_cc_aa=yes, - ac_cv_lbl_cc_hpux_cc_aa=no)) - AC_MSG_RESULT($ac_cv_lbl_cc_hpux_cc_aa) - if test $ac_cv_lbl_cc_hpux_cc_aa = no ; then - AC_MSG_ERROR(see the INSTALL doc for more info) - fi - CFLAGS="$savedcflags" - $1="-Aa $$1" - AC_DEFINE(_HPUX_SOURCE) - ;; - - *) - AC_MSG_ERROR(see the INSTALL doc for more info) - ;; - esac - fi - $2="$$2 -I/usr/local/include" - LDFLAGS="$LDFLAGS -L/usr/local/lib" - - case "$target_os" in - - irix*) - $1="$$1 -xansi -signed -g3" - ;; - - osf*) - $1="$$1 -std1 -g3" - ;; - - ultrix*) - AC_MSG_CHECKING(that Ultrix $CC hacks const in prototypes) - AC_CACHE_VAL(ac_cv_lbl_cc_const_proto, - AC_TRY_COMPILE( - [#include <sys/types.h>], - [struct a { int b; }; - void c(const struct a *)], - ac_cv_lbl_cc_const_proto=yes, - ac_cv_lbl_cc_const_proto=no)) - AC_MSG_RESULT($ac_cv_lbl_cc_const_proto) - if test $ac_cv_lbl_cc_const_proto = no ; then - AC_DEFINE(const,) - fi - ;; - esac - fi -]) - -dnl -dnl Use pfopen.c if available and pfopen() not in standard libraries -dnl Require libpcap -dnl Look for libpcap in .. -dnl Use the installed libpcap if there is no local version -dnl -dnl usage: -dnl -dnl AC_LBL_LIBPCAP(pcapdep, incls) -dnl -dnl results: -dnl -dnl $1 (pcapdep set) -dnl $2 (incls appended) -dnl LIBS -dnl LDFLAGS -dnl LBL_LIBS -dnl -AC_DEFUN(AC_LBL_LIBPCAP, - [AC_REQUIRE([AC_LBL_LIBRARY_NET]) - dnl - dnl save a copy before locating libpcap.a - dnl - LBL_LIBS="$LIBS" - pfopen=/usr/examples/packetfilter/pfopen.c - if test -f $pfopen ; then - AC_CHECK_FUNCS(pfopen) - if test $ac_cv_func_pfopen = "no" ; then - AC_MSG_RESULT(Using $pfopen) - LIBS="$LIBS $pfopen" - fi - fi - AC_MSG_CHECKING(for local pcap library) - libpcap=FAIL - lastdir=FAIL - places=`ls .. | sed -e 's,/$,,' -e 's,^,../,' | \ - egrep '/libpcap-[[0-9]]*\.[[0-9]]*(\.[[0-9]]*)?([[ab]][[0-9]]*)?$'` - for dir in $places ../libpcap libpcap ; do - basedir=`echo $dir | sed -e 's/[[ab]][[0-9]]*$//'` - if test $lastdir = $basedir ; then - dnl skip alphas when an actual release is present - continue; - fi - lastdir=$dir - if test -r $dir/pcap.c ; then - libpcap=$dir/libpcap.a - d=$dir - dnl continue and select the last one that exists - fi - done - if test "x$libpcap" = xFAIL ; then - AC_MSG_RESULT(not found) - unset ac_cv_lbl_lib_pcap_pcap_open_live_ - AC_LBL_CHECK_LIB(pcap, pcap_open_live, libpcap="-lpcap") - if test "x$libpcap" = xFAIL ; then - unset ac_cv_lbl_lib_pcap_pcap_open_live_ - CFLAGS="$CFLAGS -I/usr/local/include" - LIBS="$LIBS -L/usr/local/lib" - AC_LBL_CHECK_LIB(pcap, pcap_open_live, libpcap="-lpcap") - if test "x$libpcap" = xFAIL ; then - AC_MSG_ERROR(see the INSTALL doc for more info) - fi - $2="$$2 -I/usr/local/include" - fi - LIBS="$LIBS -lpcap" - else - $1=$libpcap - $2="-I$d $$2" - AC_MSG_RESULT($libpcap) - fi - if test "x$libpcap" != "x-lpcap" ; then - LIBS="$libpcap $LIBS" - fi - case "$target_os" in - - aix*) - pseexe="/lib/pse.exp" - AC_MSG_CHECKING(for $pseexe) - if test -f $pseexe ; then - AC_MSG_RESULT(yes) - LIBS="$LIBS -I:$pseexe" - fi - ;; - esac]) - -dnl -dnl Define RETSIGTYPE and RETSIGVAL -dnl -dnl usage: -dnl -dnl AC_LBL_TYPE_SIGNAL -dnl -dnl results: -dnl -dnl RETSIGTYPE (defined) -dnl RETSIGVAL (defined) -dnl -AC_DEFUN(AC_LBL_TYPE_SIGNAL, - [AC_BEFORE([$0], [AC_LBL_LIBPCAP]) - AC_TYPE_SIGNAL - if test "$ac_cv_type_signal" = void ; then - AC_DEFINE(RETSIGVAL,) - else - AC_DEFINE(RETSIGVAL,(0)) - fi - case "$target_os" in - - irix*) - AC_DEFINE(_BSD_SIGNALS) - ;; - - *) - dnl prefer sigset() to sigaction() - AC_CHECK_FUNCS(sigset) - if test $ac_cv_func_sigset = yes ; then - AC_DEFINE(signal,sigset) - else - AC_CHECK_FUNCS(sigaction) - fi - ;; - esac]) - -dnl -dnl If using gcc, make sure we have ANSI ioctl definitions -dnl -dnl usage: -dnl -dnl AC_LBL_FIXINCLUDES -dnl -AC_DEFUN(AC_LBL_FIXINCLUDES, - [if test "$GCC" = yes ; then - AC_MSG_CHECKING(for ANSI ioctl definitions) - AC_CACHE_VAL(ac_cv_lbl_gcc_fixincludes, - AC_TRY_COMPILE( - [/* - * This generates a "duplicate case value" when fixincludes - * has not be run. - */ -# include <sys/types.h> -# include <sys/time.h> -# include <sys/ioctl.h> -# ifdef HAVE_SYS_IOCCOM_H -# include <sys/ioccom.h> -# endif], - [switch (0) { - case _IO('A', 1):; - case _IO('B', 1):; - }], - ac_cv_lbl_gcc_fixincludes=yes, - ac_cv_lbl_gcc_fixincludes=no)) - AC_MSG_RESULT($ac_cv_lbl_gcc_fixincludes) - if test $ac_cv_lbl_gcc_fixincludes = no ; then - # Don't cache failure - unset ac_cv_lbl_gcc_fixincludes - AC_MSG_ERROR(see the INSTALL for more info) - fi - fi]) - -dnl -dnl Check for flex, default to lex -dnl Require flex 2.4 or higher -dnl Check for bison, default to yacc -dnl Default to lex/yacc if both flex and bison are not available -dnl Define the yy prefix string if using flex and bison -dnl -dnl usage: -dnl -dnl AC_LBL_LEX_AND_YACC(lex, yacc, yyprefix) -dnl -dnl results: -dnl -dnl $1 (lex set) -dnl $2 (yacc appended) -dnl $3 (optional flex and bison -P prefix) -dnl -AC_DEFUN(AC_LBL_LEX_AND_YACC, - [AC_ARG_WITH(flex, [ --without-flex don't use flex]) - AC_ARG_WITH(bison, [ --without-bison don't use bison]) - if test "$with_flex" = no ; then - $1=lex - else - AC_CHECK_PROGS($1, flex, lex) - fi - if test "$$1" = flex ; then - # The -V flag was added in 2.4 - AC_MSG_CHECKING(for flex 2.4 or higher) - AC_CACHE_VAL(ac_cv_lbl_flex_v24, - if flex -V >/dev/null 2>&1; then - ac_cv_lbl_flex_v24=yes - else - ac_cv_lbl_flex_v24=no - fi) - AC_MSG_RESULT($ac_cv_lbl_flex_v24) - if test $ac_cv_lbl_flex_v24 = no ; then - s="2.4 or higher required" - AC_MSG_WARN(ignoring obsolete flex executable ($s)) - $1=lex - fi - fi - if test "$with_bison" = no ; then - $2=yacc - else - AC_CHECK_PROGS($2, bison, yacc) - fi - if test "$$2" = bison ; then - $2="$$2 -y" - fi - if test "$$1" != lex -a "$$2" = yacc -o "$$1" = lex -a "$$2" != yacc ; then - AC_MSG_WARN(don't have both flex and bison; reverting to lex/yacc) - $1=lex - $2=yacc - fi - if test "$$1" = flex -a -n "$3" ; then - $1="$$1 -P$3" - $2="$$2 -p $3" - fi]) - -dnl -dnl Checks to see if union wait is used with WEXITSTATUS() -dnl -dnl usage: -dnl -dnl AC_LBL_UNION_WAIT -dnl -dnl results: -dnl -dnl DECLWAITSTATUS (defined) -dnl -AC_DEFUN(AC_LBL_UNION_WAIT, - [AC_MSG_CHECKING(if union wait is used) - AC_CACHE_VAL(ac_cv_lbl_union_wait, - AC_TRY_COMPILE([ -# include <sys/types.h> -# include <sys/wait.h>], - [int status; - u_int i = WEXITSTATUS(status); - u_int j = waitpid(0, &status, 0);], - ac_cv_lbl_union_wait=no, - ac_cv_lbl_union_wait=yes)) - AC_MSG_RESULT($ac_cv_lbl_union_wait) - if test $ac_cv_lbl_union_wait = yes ; then - AC_DEFINE(DECLWAITSTATUS,union wait) - else - AC_DEFINE(DECLWAITSTATUS,int) - fi]) - -dnl -dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member -dnl -dnl usage: -dnl -dnl AC_LBL_SOCKADDR_SA_LEN -dnl -dnl results: -dnl -dnl HAVE_SOCKADDR_SA_LEN (defined) -dnl -AC_DEFUN(AC_LBL_SOCKADDR_SA_LEN, - [AC_MSG_CHECKING(if sockaddr struct has sa_len member) - AC_CACHE_VAL(ac_cv_lbl_sockaddr_has_sa_len, - AC_TRY_COMPILE([ -# include <sys/types.h> -# include <sys/socket.h>], - [u_int i = sizeof(((struct sockaddr *)0)->sa_len)], - ac_cv_lbl_sockaddr_has_sa_len=yes, - ac_cv_lbl_sockaddr_has_sa_len=no)) - AC_MSG_RESULT($ac_cv_lbl_sockaddr_has_sa_len) - if test $ac_cv_lbl_sockaddr_has_sa_len = yes ; then - AC_DEFINE(HAVE_SOCKADDR_SA_LEN) - fi]) - -dnl -dnl Checks to see if the IFF_LOOPBACK exists as a define or enum -dnl -dnl (stupidly some versions of linux use an enum...) -dnl -dnl usage: -dnl -dnl AC_LBL_IFF_LOOPBACK -dnl -dnl results: -dnl -dnl HAVE_IFF_LOOPBACK (defined) -dnl -AC_DEFUN(AC_LBL_IFF_LOOPBACK, - [AC_MSG_CHECKING(for IFF_LOOPBACK define/enum) - AC_CACHE_VAL(ac_cv_lbl_have_iff_loopback, - AC_TRY_COMPILE([ -# include <sys/param.h> -# include <sys/file.h> -# include <sys/ioctl.h> -# include <sys/socket.h> -# ifdef HAVE_SYS_SOCKIO_H -# include <sys/sockio.h> -# endif -# include <sys/time.h> -# include <net/if.h> -# include <netinet/in.h>], - [int i = IFF_LOOPBACK], - ac_cv_lbl_have_iff_loopback=yes, - ac_cv_lbl_have_iff_loopback=no)) - AC_MSG_RESULT($ac_cv_lbl_have_iff_loopback) - if test $ac_cv_lbl_have_iff_loopback = yes ; then - AC_DEFINE(HAVE_IFF_LOOPBACK) - fi]) - -dnl -dnl Checks to see if -R is used -dnl -dnl usage: -dnl -dnl AC_LBL_HAVE_RUN_PATH -dnl -dnl results: -dnl -dnl ac_cv_lbl_have_run_path (yes or no) -dnl -AC_DEFUN(AC_LBL_HAVE_RUN_PATH, - [AC_MSG_CHECKING(for ${CC-cc} -R) - AC_CACHE_VAL(ac_cv_lbl_have_run_path, - [echo 'main(){}' > conftest.c - ${CC-cc} -o conftest conftest.c -R/a1/b2/c3 >conftest.out 2>&1 - if test ! -s conftest.out ; then - ac_cv_lbl_have_run_path=yes - else - ac_cv_lbl_have_run_path=no - fi - rm -f conftest*]) - AC_MSG_RESULT($ac_cv_lbl_have_run_path) - ]) - -dnl -dnl Due to the stupid way it's implemented, AC_CHECK_TYPE is nearly useless. -dnl -dnl usage: -dnl -dnl AC_LBL_CHECK_TYPE -dnl -dnl results: -dnl -dnl int32_t (defined) -dnl u_int32_t (defined) -dnl -AC_DEFUN(AC_LBL_CHECK_TYPE, - [AC_MSG_CHECKING(for $1 using $CC) - AC_CACHE_VAL(ac_cv_lbl_have_$1, - AC_TRY_COMPILE([ -# include "confdefs.h" -# include <sys/types.h> -# if STDC_HEADERS -# include <stdlib.h> -# include <stddef.h> -# endif], - [$1 i], - ac_cv_lbl_have_$1=yes, - ac_cv_lbl_have_$1=no)) - AC_MSG_RESULT($ac_cv_lbl_have_$1) - if test $ac_cv_lbl_have_$1 = no ; then - AC_DEFINE($1, $2) - fi]) - -dnl -dnl Checks to see if unaligned memory accesses fail -dnl -dnl usage: -dnl -dnl AC_LBL_UNALIGNED_ACCESS -dnl -dnl results: -dnl -dnl LBL_ALIGN (DEFINED) -dnl -AC_DEFUN(AC_LBL_UNALIGNED_ACCESS, - [AC_MSG_CHECKING(if unaligned accesses fail) - AC_CACHE_VAL(ac_cv_lbl_unaligned_fail, - [case "$target_cpu" in - - alpha|hp*|mips|sparc) - ac_cv_lbl_unaligned_fail=yes - ;; - - *) - cat >conftest.c <<EOF -# include <sys/types.h> -# include <sys/wait.h> -# include <stdio.h> - unsigned char a[[5]] = { 1, 2, 3, 4, 5 }; - main() { - unsigned int i; - pid_t pid; - int status; - /* avoid "core dumped" message */ - pid = fork(); - if (pid < 0) - exit(2); - if (pid > 0) { - /* parent */ - pid = waitpid(pid, &status, 0); - if (pid < 0) - exit(3); - exit(!WIFEXITED(status)); - } - /* child */ - i = *(unsigned int *)&a[[1]]; - printf("%d\n", i); - exit(0); - } -EOF - ${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS \ - conftest.c $LIBS >/dev/null 2>&1 - if test ! -x conftest ; then - dnl failed to compile for some reason - ac_cv_lbl_unaligned_fail=yes - else - ./conftest >conftest.out - if test ! -s conftest.out ; then - ac_cv_lbl_unaligned_fail=yes - else - ac_cv_lbl_unaligned_fail=no - fi - fi - rm -f conftest* core core.conftest - ;; - esac]) - AC_MSG_RESULT($ac_cv_lbl_unaligned_fail) - if test $ac_cv_lbl_unaligned_fail = yes ; then - AC_DEFINE(LBL_ALIGN) - fi]) - -dnl -dnl add all warning option to CFLAGS -dnl -dnl usage: -dnl -dnl AC_LBL_CHECK_WALL(copt) -dnl -dnl results: -dnl -dnl $1 (copt appended) -dnl ac_cv_lbl_gcc_vers -dnl -AC_DEFUN(AC_LBL_CHECK_WALL, - [ if test "$GCC" = yes ; then - if test "$SHLICC2" = yes ; then - ac_cv_lbl_gcc_vers=2 - $1="`echo $$1 | sed -e 's/-O/-O2/'`" - else - AC_MSG_CHECKING(gcc version) - AC_CACHE_VAL(ac_cv_lbl_gcc_vers, - ac_cv_lbl_gcc_vers=`$CC --version 2>&1 | \ - sed -e 's/\..*//'`) - AC_MSG_RESULT($ac_cv_lbl_gcc_vers) - if test $ac_cv_lbl_gcc_vers -gt 1 ; then - $1="`echo $$1 | sed -e 's/-O/-O2/'`" - fi - fi - 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="$$1 -Wmissing-prototypes -Wstrict-prototypes" - fi - fi - else - case "$target_os" in - - irix6*) - $1="$$1 -fullwarn -n32" - ;; - - *) - ;; - esac - fi]) - -dnl -dnl If using gcc and the file .devel exists: -dnl Compile with -g (if supported) and -Wall -dnl If using gcc 2, do extra prototype checking -dnl If an os prototype include exists, symlink os-proto.h to it -dnl -dnl usage: -dnl -dnl AC_LBL_DEVEL(copt) -dnl -dnl results: -dnl -dnl $1 (copt appended) -dnl HAVE_OS_PROTO_H (defined) -dnl os-proto.h (symlinked) -dnl -AC_DEFUN(AC_LBL_DEVEL, - [rm -f os-proto.h - if test "${LBL_CFLAGS+set}" = set; then - $1="$$1 ${LBL_CFLAGS}" - fi - if test -f .devel ; then - AC_LBL_CHECK_WALL($1) - os=`echo $target_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'` - name="lbl/os-$os.h" - if test -f $name ; then - ln -s $name os-proto.h - AC_DEFINE(HAVE_OS_PROTO_H) - else - AC_MSG_WARN(can't find $name) - fi - fi]) - -dnl -dnl Improved version of AC_CHECK_LIB -dnl -dnl Thanks to John Hawkinson (jhawk@mit.edu) -dnl -dnl usage: -dnl -dnl AC_LBL_CHECK_LIB(LIBRARY, FUNCTION [, ACTION-IF-FOUND [, -dnl ACTION-IF-NOT-FOUND [, OTHER-LIBRARIES]]]) -dnl -dnl results: -dnl -dnl LIBS -dnl - -define(AC_LBL_CHECK_LIB, -[AC_MSG_CHECKING([for $2 in -l$1]) -dnl Use a cache variable name containing both the library and function name, -dnl because the test really is for library $1 defining function $2, not -dnl just for library $1. Separate tests with the same $1 and different $2's -dnl may have different results. -ac_lib_var=`echo $1['_']$2['_']$5 | sed 'y%./+- %__p__%'` -AC_CACHE_VAL(ac_cv_lbl_lib_$ac_lib_var, -[ac_save_LIBS="$LIBS" -LIBS="-l$1 $5 $LIBS" -AC_TRY_LINK(dnl -ifelse([$2], [main], , dnl Avoid conflicting decl of main. -[/* Override any gcc2 internal prototype to avoid an error. */ -]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus -extern "C" -#endif -])dnl -[/* We use char because int might match the return type of a gcc2 - builtin and then its argument prototype would still apply. */ -char $2(); -]), - [$2()], - eval "ac_cv_lbl_lib_$ac_lib_var=yes", - eval "ac_cv_lbl_lib_$ac_lib_var=no") -LIBS="$ac_save_LIBS" -])dnl -if eval "test \"`echo '$ac_cv_lbl_lib_'$ac_lib_var`\" = yes"; then - AC_MSG_RESULT(yes) - ifelse([$3], , -[changequote(, )dnl - ac_tr_lib=HAVE_LIB`echo $1 | sed -e 's/[^a-zA-Z0-9_]/_/g' \ - -e 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/'` -changequote([, ])dnl - AC_DEFINE_UNQUOTED($ac_tr_lib) - LIBS="-l$1 $LIBS" -], [$3]) -else - AC_MSG_RESULT(no) -ifelse([$4], , , [$4 -])dnl -fi -]) - -dnl -dnl AC_LBL_LIBRARY_NET -dnl -dnl This test is for network applications that need socket() and -dnl gethostbyname() -ish functions. Under Solaris, those applications -dnl need to link with "-lsocket -lnsl". Under IRIX, they need to link -dnl with "-lnsl" but should *not* link with "-lsocket" because -dnl libsocket.a breaks a number of things (for instance: -dnl gethostbyname() under IRIX 5.2, and snoop sockets under most -dnl versions of IRIX). -dnl -dnl Unfortunately, many application developers are not aware of this, -dnl and mistakenly write tests that cause -lsocket to be used under -dnl IRIX. It is also easy to write tests that cause -lnsl to be used -dnl under operating systems where neither are necessary (or useful), -dnl such as SunOS 4.1.4, which uses -lnsl for TLI. -dnl -dnl This test exists so that every application developer does not test -dnl this in a different, and subtly broken fashion. - -dnl It has been argued that this test should be broken up into two -dnl seperate tests, one for the resolver libraries, and one for the -dnl libraries necessary for using Sockets API. Unfortunately, the two -dnl are carefully intertwined and allowing the autoconf user to use -dnl them independantly potentially results in unfortunate ordering -dnl dependancies -- as such, such component macros would have to -dnl carefully use indirection and be aware if the other components were -dnl executed. Since other autoconf macros do not go to this trouble, -dnl and almost no applications use sockets without the resolver, this -dnl complexity has not been implemented. -dnl -dnl The check for libresolv is in case you are attempting to link -dnl statically and happen to have a libresolv.a lying around (and no -dnl libnsl.a). -dnl -AC_DEFUN(AC_LBL_LIBRARY_NET, [ - # Most operating systems have gethostbyname() in the default searched - # libraries (i.e. libc): - AC_CHECK_FUNC(gethostbyname, , - # Some OSes (eg. Solaris) place it in libnsl: - AC_LBL_CHECK_LIB(nsl, gethostbyname, , - # Some strange OSes (SINIX) have it in libsocket: - AC_LBL_CHECK_LIB(socket, gethostbyname, , - # Unfortunately libsocket sometimes depends on libnsl. - # AC_CHECK_LIB's API is essentially broken so the - # following ugliness is necessary: - AC_LBL_CHECK_LIB(socket, gethostbyname, - LIBS="-lsocket -lnsl $LIBS", - AC_CHECK_LIB(resolv, gethostbyname), - -lnsl)))) - AC_CHECK_FUNC(socket, , AC_CHECK_LIB(socket, socket, , - AC_LBL_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , - -lnsl))) - # DLPI needs putmsg under HPUX so test for -lstr while we're at it - AC_CHECK_LIB(str, putmsg) - ]) |