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tcpdump/aclocal.m4

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We support building tcpdump with versions of libpcap other than the one with which it was released, and DLT_BLUETOOTH_HCI_H4_WITH_PHDR might be defined by pcap-bpf.h without pcap/bluetooth.h being present (as appears to be the case on Fedora 9, for example), so check whether <pcap/bluetooth.h> is usable. Update a comment - F9 appears to have a "/usr/include/pcap.h" if you install the libpcap headers. When adding -I flags when running a compiler-based test, add them to CPPFLAGS, not CFLAGS - the latter doesn't work right with AC_CHECK_HEADERS, as the "gcc -E" run doesn't have the -I flags added.
2008-09-26 05:45:50 +08:00
dnl @(#) $Header: /tcpdump/master/tcpdump/aclocal.m4,v 1.116 2008-09-25 21:45:50 guy Exp $ (LBL)
Initial revision
1999-10-08 07:47:09 +08:00
dnl
dnl Copyright (c) 1995, 1996, 1997, 1998
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 ac_cv_lbl_gcc_vers
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
- enable build outside of the tree - endian checks (use WORDS_BIGENDIAN) - fallback def for IPPROTO_{AH,ESP} - sa_len issues - do not use bittypes.h, respect AC_LBL_CHECK_TYPES
1999-10-30 15:36:34 +08:00
$2="-I\$(srcdir)"
Initial revision
1999-10-08 07:47:09 +08:00
fi
if test "${CFLAGS+set}" = set; then
LBL_CFLAGS="$CFLAGS"
fi
if test -z "$CC" ; then
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
case "$host_os" in
Initial revision
1999-10-08 07:47:09 +08:00
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
if test "$SHLICC2" = yes ; then
ac_cv_lbl_gcc_vers=2
$1="-O2"
else
AC_MSG_CHECKING(gcc version)
AC_CACHE_VAL(ac_cv_lbl_gcc_vers,
ac_cv_lbl_gcc_vers=`$CC -v 2>&1 | \
sed -e '/^gcc version /!d' \
-e 's/^gcc version //' \
-e 's/ .*//' -e 's/^[[[^0-9]]]*//' \
-e 's/\..*//'`)
AC_MSG_RESULT($ac_cv_lbl_gcc_vers)
if test $ac_cv_lbl_gcc_vers -gt 1 ; then
$1="-O2"
fi
fi
else
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 $ac_cv_lbl_cc_ansi_prototypes = no ; then
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
case "$host_os" in
Initial revision
1999-10-08 07:47:09 +08:00
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"
V_CCOPT="-Aa $V_CCOPT"
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"
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
case "$host_os" in
Initial revision
1999-10-08 07:47:09 +08:00
irix*)
Don't turn on massive debugging by default.
2001-10-09 00:43:44 +08:00
V_CCOPT="$V_CCOPT -xansi -signed -O"
Initial revision
1999-10-08 07:47:09 +08:00
;;
osf*)
Don't turn on massive debugging by default.
2001-10-09 00:43:44 +08:00
V_CCOPT="$V_CCOPT -std1 -O"
Initial revision
1999-10-08 07:47:09 +08:00
;;
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
])
Put back AC_LBL_C_INLINE; it turns out that wasn't the cause of the inline problem, and AC_LBL_C_INLINE checks for a case that some versions of the HP C compiler don't handle, and only uses inline if that case succeeds.
2005-04-21 10:21:47 +08:00
#
# Try compiling a sample of the type of code that appears in
# gencode.c with "inline", "__inline__", and "__inline".
#
# Autoconf's AC_C_INLINE, at least in autoconf 2.13, isn't good enough,
# as it just tests whether a function returning "int" can be inlined;
# at least some versions of HP's C compiler can inline that, but can't
# inline a function that returns a struct pointer.
#
AC_DEFUN(AC_LBL_C_INLINE,
[AC_MSG_CHECKING(for inline)
AC_CACHE_VAL(ac_cv_lbl_inline, [
ac_cv_lbl_inline=""
ac_lbl_cc_inline=no
for ac_lbl_inline in inline __inline__ __inline
do
AC_TRY_COMPILE(
[#define inline $ac_lbl_inline
static inline struct iltest *foo(void);
struct iltest {
int iltest1;
int iltest2;
};
static inline struct iltest *
foo()
{
static struct iltest xxx;
return &xxx;
}],,ac_lbl_cc_inline=yes,)
if test "$ac_lbl_cc_inline" = yes ; then
break;
fi
done
if test "$ac_lbl_cc_inline" = yes ; then
ac_cv_lbl_inline=$ac_lbl_inline
fi])
if test ! -z "$ac_cv_lbl_inline" ; then
AC_MSG_RESULT($ac_cv_lbl_inline)
else
AC_MSG_RESULT(no)
fi
AC_DEFINE_UNQUOTED(inline, $ac_cv_lbl_inline, [Define as token for inline if inlining supported])])
Initial revision
1999-10-08 07:47:09 +08:00
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 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
Check for libpcap in directories under $srcdir, so that if you're doing the compile in a directory other than the source directory, by using the "--srcdir=" option, it finds libpcap if it's in a directory at the same level as the tcpdump source directory or in a libpcap subdirectory of that directory.
2003-03-13 16:04:25 +08:00
places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \
use a more liberal regular expression when looking for matching libpcap
2000-07-30 18:53:20 +08:00
egrep '/libpcap-[[0-9]]*.[[0-9]]*(.[[0-9]]*)?([[ab]][[0-9]]*)?$'`
Check for libpcap in directories under $srcdir, so that if you're doing the compile in a directory other than the source directory, by using the "--srcdir=" option, it finds libpcap if it's in a directory at the same level as the tcpdump source directory or in a libpcap subdirectory of that directory.
2003-03-13 16:04:25 +08:00
for dir in $places $srcdir/../libpcap $srcdir/libpcap ; do
Initial revision
1999-10-08 07:47:09 +08:00
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
- enable build outside of the tree - endian checks (use WORDS_BIGENDIAN) - fallback def for IPPROTO_{AH,ESP} - sa_len issues - do not use bittypes.h, respect AC_LBL_CHECK_TYPES
1999-10-30 15:36:34 +08:00
if test -r $dir/libpcap.a ; then
Initial revision
1999-10-08 07:47:09 +08:00
libpcap=$dir/libpcap.a
d=$dir
dnl continue and select the last one that exists
fi
done
if test $libpcap = FAIL ; then
AC_MSG_RESULT(not found)
If we're using a local libpcap library, check for a local pcap-config script and, if we find it, query it to see what additional libraries are needed to link with that library. If we're not, check for a system pcap-config script and, if we find it, query it to see what C compiler flags and linker flags are needed to build with that library.
2009-05-23 09:45:27 +08:00
#
# Look for pcap-config.
#
AC_PATH_PROG(PCAP_CONFIG, pcap-config)
if test -n "$PCAP_CONFIG" ; then
#
# Found - use it to get the include flags for
# libpcap and the flags to link with libpcap.
#
$2="`\"$PCAP_CONFIG\" --cflags` $$2"
libpcap="`\"$PCAP_CONFIG\" --libs`"
else
#
# Not found; look for pcap.
#
AC_CHECK_LIB(pcap, main, libpcap="-lpcap")
if test $libpcap = FAIL ; then
Initial revision
1999-10-08 07:47:09 +08:00
AC_MSG_ERROR(see the INSTALL doc for more info)
If we're using a local libpcap library, check for a local pcap-config script and, if we find it, query it to see what additional libraries are needed to link with that library. If we're not, check for a system pcap-config script and, if we find it, query it to see what C compiler flags and linker flags are needed to build with that library.
2009-05-23 09:45:27 +08:00
fi
dnl
dnl Some versions of Red Hat Linux put "pcap.h" in
dnl "/usr/include/pcap"; had the LBL folks done so,
dnl that would have been a good idea, but for
dnl the Red Hat folks to do so just breaks source
dnl compatibility with other systems.
dnl
dnl We work around this by assuming that, as we didn't
dnl find a local libpcap, libpcap is in /usr/lib or
dnl /usr/local/lib and that the corresponding header
dnl file is under one of those directories; if we don't
dnl find it in either of those directories, we check to
dnl see if it's in a "pcap" subdirectory of them and,
dnl if so, add that subdirectory to the "-I" list.
dnl
dnl (We now also put pcap.h in /usr/include/pcap, but we
dnl leave behind a /usr/include/pcap.h that includes it,
dnl so you can still just include <pcap.h>.)
dnl
AC_MSG_CHECKING(for extraneous pcap header directories)
if test \( ! -r /usr/local/include/pcap.h \) -a \
"if ! {command}" works in the Almquist shell (as used by FreeBSD), and is also documented to work in Bash, but is not documented to work in the real Bourne shell, and doesn't appear to work in the real Bourne shell. Don't use it.
2003-05-02 05:20:52 +08:00
\( ! -r /usr/include/pcap.h \); then
If we're using a local libpcap library, check for a local pcap-config script and, if we find it, query it to see what additional libraries are needed to link with that library. If we're not, check for a system pcap-config script and, if we find it, query it to see what C compiler flags and linker flags are needed to build with that library.
2009-05-23 09:45:27 +08:00
if test -r /usr/local/include/pcap/pcap.h; then
d="/usr/local/include/pcap"
elif test -r /usr/include/pcap/pcap.h; then
d="/usr/include/pcap"
fi
fi
if test -z "$d" ; then
AC_MSG_RESULT(not found)
else
$2="-I$d $$2"
AC_MSG_RESULT(found -- -I$d added)
If we're not using a local libpcap, check to see whether "pcap.h" is hidden in a "pcap" subdirectory of "/usr/include" or "/usr/local/include" and, if so, add a "-I" flag to search in that subdirectory, so we manage to find "pcap.h", as Red Hat decided to "improve" things by putting "pcap.h" in "/usr/include/pcap" (that's probably where libpcap should have put it originally, but moving it now just breaks source compatibility).
2002-12-17 17:55:14 +08:00
fi
fi
Initial revision
1999-10-08 07:47:09 +08:00
else
$1=$libpcap
fixed quoting of [] in m4 file
2001-10-09 01:31:44 +08:00
places=`ls $srcdir/.. | sed -e 's,/$,,' -e "s,^,$srcdir/../," | \
egrep '/libpcap-[[0-9]]*.[[0-9]]*(.[[0-9]]*)?([[ab]][[0-9]]*)?$'`
- enable build outside of the tree - endian checks (use WORDS_BIGENDIAN) - fallback def for IPPROTO_{AH,ESP} - sa_len issues - do not use bittypes.h, respect AC_LBL_CHECK_TYPES
1999-10-30 15:36:34 +08:00
if test -r $d/pcap.h; then
Fix indentation.
2001-01-03 06:18:27 +08:00
$2="-I$d $$2"
patch to pcap.h search routine.
2001-10-09 01:18:51 +08:00
elif test -r $places/pcap.h; then
$2="-I$places $$2"
- enable build outside of the tree - endian checks (use WORDS_BIGENDIAN) - fallback def for IPPROTO_{AH,ESP} - sa_len issues - do not use bittypes.h, respect AC_LBL_CHECK_TYPES
1999-10-30 15:36:34 +08:00
else
AC_MSG_ERROR(cannot find pcap.h, see INSTALL)
fi
Initial revision
1999-10-08 07:47:09 +08:00
AC_MSG_RESULT($libpcap)
If we're using a local libpcap library, check for a local pcap-config script and, if we find it, query it to see what additional libraries are needed to link with that library. If we're not, check for a system pcap-config script and, if we find it, query it to see what C compiler flags and linker flags are needed to build with that library.
2009-05-23 09:45:27 +08:00
AC_PATH_PROG(PCAP_CONFIG, pcap-config,, $d)
if test "$PCAP_CONFIG"; then
#
# The libpcap directory has a pcap-config script.
# Use it to get any additioal libraries needed
# to link with the libpcap archive library in
# that directory
#
libpcap="$libpcap `\"$PCAP_CONFIG\" --additional-libs --static`"
fi
Initial revision
1999-10-08 07:47:09 +08:00
fi
LIBS="$libpcap $LIBS"
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
case "$host_os" in
Initial revision
1999-10-08 07:47:09 +08:00
aix*)
pseexe="/lib/pse.exp"
AC_MSG_CHECKING(for $pseexe)
if test -f $pseexe ; then
AC_MSG_RESULT(yes)
LIBS="$LIBS -I:$pseexe"
fi
On AIX, we have to link with "-lodm" and "-lcfg", as libpcap now uses routines from those libraries on AIX (in order to load the BPF driver and create the BPF devices).
2003-02-12 18:17:08 +08:00
#
# We need "-lodm" and "-lcfg", as libpcap requires them on
# AIX, and we just build a static libpcap.a and thus can't
# arrange that when you link with libpcap you automatically
# link with those libraries.
#
LIBS="$LIBS -lodm -lcfg"
Initial revision
1999-10-08 07:47:09 +08:00
;;
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
esac
dnl
dnl Check for "pcap_list_datalinks()", "pcap_set_datalink()",
Check whether we have "pcap_breakloop()", and use it if we do - it's a safer way to terminate "pcap_loop()" in a signal handler (it just sets a flag, it doesn't muck with data structures that might have been in the middle of being updated). Have "setsignal()" not request SA_RESTART, so that if we call "pcap_breakloop()" in a signal handler and then return, we don't restart a call that was waiting for captured packets, we just make that call EINTR out.
2003-11-04 15:29:15 +08:00
dnl and "pcap_datalink_name_to_val()", and use substitute versions
Fix to work with autoconf 2.59.
2005-06-04 05:36:41 +08:00
dnl if they're not present.
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
dnl
Use AC_CHECK_FUNC, not AC_CHECK_LIB, to look for "pcap_list_datalinks()", "pcap_set_datalink()", and "pcap_datalink_name_to_val()" in the version of libpcap we're using - AC_CHECK_LIB can't check the local version, if that's what we're using, but AC_CHECK_FUNC can (it just uses the current LIBS setting).
2003-01-12 04:51:41 +08:00
AC_CHECK_FUNC(pcap_list_datalinks,
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
AC_DEFINE(HAVE_PCAP_LIST_DATALINKS),
Fix to work with autoconf 2.59.
2005-06-04 05:36:41 +08:00
[
AC_LIBOBJ(datalinks)
])
Use AC_CHECK_FUNC, not AC_CHECK_LIB, to look for "pcap_list_datalinks()", "pcap_set_datalink()", and "pcap_datalink_name_to_val()" in the version of libpcap we're using - AC_CHECK_LIB can't check the local version, if that's what we're using, but AC_CHECK_FUNC can (it just uses the current LIBS setting).
2003-01-12 04:51:41 +08:00
AC_CHECK_FUNC(pcap_set_datalink,
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
AC_DEFINE(HAVE_PCAP_SET_DATALINK))
Use AC_CHECK_FUNC, not AC_CHECK_LIB, to look for "pcap_list_datalinks()", "pcap_set_datalink()", and "pcap_datalink_name_to_val()" in the version of libpcap we're using - AC_CHECK_LIB can't check the local version, if that's what we're using, but AC_CHECK_FUNC can (it just uses the current LIBS setting).
2003-01-12 04:51:41 +08:00
AC_CHECK_FUNC(pcap_datalink_name_to_val,
Print both the name and the description of a link-layer type (the name isn't always very suggestive - for example, somebody might think "EN10MB" is always 10 MB/s, and might not know that "IEEE802" is Token Ring), using "pcap_datalink_val_to_description()". Supply our own "pcap_datalink_val_to_description()" if libpcap doesn't have it (even if it has "pcap_datalink_name_to_val()").
2003-11-19 07:09:42 +08:00
[
AC_DEFINE(HAVE_PCAP_DATALINK_NAME_TO_VAL)
AC_CHECK_FUNC(pcap_datalink_val_to_description,
AC_DEFINE(HAVE_PCAP_DATALINK_VAL_TO_DESCRIPTION),
Fix to work with autoconf 2.59.
2005-06-04 05:36:41 +08:00
[
AC_LIBOBJ(dlnames)
])
Print both the name and the description of a link-layer type (the name isn't always very suggestive - for example, somebody might think "EN10MB" is always 10 MB/s, and might not know that "IEEE802" is Token Ring), using "pcap_datalink_val_to_description()". Supply our own "pcap_datalink_val_to_description()" if libpcap doesn't have it (even if it has "pcap_datalink_name_to_val()").
2003-11-19 07:09:42 +08:00
],
Fix to work with autoconf 2.59.
2005-06-04 05:36:41 +08:00
[
AC_LIBOBJ(dlnames)
])
Check whether we have "pcap_breakloop()", and use it if we do - it's a safer way to terminate "pcap_loop()" in a signal handler (it just sets a flag, it doesn't muck with data structures that might have been in the middle of being updated). Have "setsignal()" not request SA_RESTART, so that if we call "pcap_breakloop()" in a signal handler and then return, we don't restart a call that was waiting for captured packets, we just make that call EINTR out.
2003-11-04 15:29:15 +08:00
dnl
dnl Check for "pcap_breakloop()"; you can't substitute for it if
dnl it's absent (it has hooks into the live capture routines),
dnl so just define the HAVE_ value if it's there.
dnl
AC_CHECK_FUNCS(pcap_breakloop)
Use pcap_dump_ftell() rather than casting a pcap_dumper_t * to a FILE * and using ftell(); that won't necessarily work on Windows (if libpcap was built with a different version of the C runtime library than tcpdump is), and, even on UN*X, would break if a pcap_dumper_t * were ever made something other than a FILE *. Provide a pcap_dump_ftell() implementation that does that cheating cast for use if libpcap doesn't have it (a pcap_dumper_t * is just a FILE * on those older versions of libpcap).
2005-06-04 06:08:51 +08:00
dnl
dnl Check for "pcap_dump_ftell()" and use a substitute version
dnl if it's not present.
AC_CHECK_FUNC(pcap_dump_ftell,
AC_DEFINE(HAVE_PCAP_DUMP_FTELL),
[
AC_LIBOBJ(pcap_dump_ftell)
])
NetBSD support for multiple data link types on an interface, from David Young <dyoung@ojctech.com>, with some minor changes by Jason R. Thorpe <thorpej@netbsd.org>, and further changes by me to: use "-y" rather than "-D" to set the link type ("-D" was already taken); use libpcap APIs to map between data link type names and values; supply stub versions of missing-but-needed libpcap APIs. Update Jason Thorpe's e-mail address (Zembu is going away, if it hasn't done so already).
2002-12-19 17:27:54 +08:00
])
Initial revision
1999-10-08 07:47:09 +08:00
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
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
case "$host_os" in
Initial revision
1999-10-08 07:47:09 +08:00
irix*)
AC_DEFINE(_BSD_SIGNALS)
;;
*)
Nobody seemed to know why we preferred sigset() to sigaction(); the latter is a POSIX standard, and you don't have to include some additional header file to get it declared, so we'll prefer the it.
2002-04-24 14:34:18 +08:00
dnl prefer sigaction() to sigset()
AC_CHECK_FUNCS(sigaction)
if test $ac_cv_func_sigaction = no ; then
AC_CHECK_FUNCS(sigset)
Initial revision
1999-10-08 07:47:09 +08:00
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 -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)
])
Second stage of adding support for 64-bit integral data types - this causes the configure script to attempt to define the PRI[doux]64 macros if they're not defined by including <inttypes.h>, and causes "missing/bittypes.h" to attempt to define them, if undefined, in a fashion that should, with any luck, work on MSVC++ and various flavors of GNU C on Windows. Fix the spelling of "Mac OS X".
2004-04-17 16:44:49 +08:00
dnl
dnl Check whether a given format can be used to print 64-bit integers
dnl
AC_DEFUN(AC_LBL_CHECK_64BIT_FORMAT,
[
AC_MSG_CHECKING([whether %$1x can be used to format 64-bit integers])
AC_RUN_IFELSE(
[
AC_LANG_SOURCE(
[[
# ifdef HAVE_INTTYPES_H
#include <inttypes.h>
From Albert Chin: 1. aclocal.m4 patch required by Tru64 UNIX which has inttypes.h in a non-standard location so gcc cannot find the PRI types. So, use <sys/bitypes.h> to get u_int#_t types for help detecting %llx, etc. 2. Help gcc on aix find ether_ntohost declaration.
2005-04-20 17:49:52 +08:00
# endif
# ifdef HAVE_SYS_BITYPES_H
#include <sys/bitypes.h>
Second stage of adding support for 64-bit integral data types - this causes the configure script to attempt to define the PRI[doux]64 macros if they're not defined by including <inttypes.h>, and causes "missing/bittypes.h" to attempt to define them, if undefined, in a fashion that should, with any luck, work on MSVC++ and various flavors of GNU C on Windows. Fix the spelling of "Mac OS X".
2004-04-17 16:44:49 +08:00
# endif
#include <stdio.h>
#include <sys/types.h>
main()
{
u_int64_t t = 1;
char strbuf[16+1];
sprintf(strbuf, "%016$1x", t << 32);
if (strcmp(strbuf, "0000000100000000") == 0)
exit(0);
else
exit(1);
}
]])
],
[
AC_DEFINE(PRId64, "$1d")
AC_DEFINE(PRIo64, "$1o")
AC_DEFINE(PRIx64, "$1x")
AC_DEFINE(PRIu64, "$1u")
AC_MSG_RESULT(yes)
],
[
AC_MSG_RESULT(no)
$2
])
])
Initial revision
1999-10-08 07:47:09 +08:00
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,
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
[case "$host_cpu" in
Initial revision
1999-10-08 07:47:09 +08:00
From Paul Mundt <lethal@linux-sh.org>: add SuperH to the list of CPUs where we wire in the idea that it can't handle unaligned accesses. (I don't know why the test program doesn't work - but perhaps the test program is the wrong answer anyway, as it doesn't work when cross-compiling.)
2003-03-28 16:36:34 +08:00
#
# These are CPU types where:
#
# the CPU faults on an unaligned access, but at least some
# OSes that support that CPU catch the fault and simulate
# the unaligned access (e.g., Alpha/{Digital,Tru64} UNIX) -
# the simulation is slow, so we don't want to use it;
#
# the CPU, I infer (from the old
#
add arm to the list of cpus that dislike unaligned access. apparently it does something weird with them. from cgd@netbsd.org (Chris G. Demetriou)
2000-06-10 22:17:38 +08:00
# XXX: should also check that they don't do weird things (like on arm)
From Paul Mundt <lethal@linux-sh.org>: add SuperH to the list of CPUs where we wire in the idea that it can't handle unaligned accesses. (I don't know why the test program doesn't work - but perhaps the test program is the wrong answer anyway, as it doesn't work when cross-compiling.)
2003-03-28 16:36:34 +08:00
#
# comment) doesn't fault on unaligned accesses, but doesn't
# do a normal unaligned fetch, either (e.g., presumably, ARM);
#
# for whatever reason, the test program doesn't work
# (this has been claimed to be the case for several of those
# CPUs - I don't know what the problem is; the problem
# was reported as "the test program dumps core" for SuperH,
# but that's what the test program is *supposed* to do -
# it dumps core before it writes anything, so the test
# for an empty output file should find an empty output
# file and conclude that unaligned accesses don't work).
#
# This run-time test won't work if you're cross-compiling, so
# in order to support cross-compiling for a particular CPU,
# we have to wire in the list of CPU types anyway, as far as
# I know, so perhaps we should just have a set of CPUs on
# which we know it doesn't work, a set of CPUs on which we
# know it does work, and have the script just fail on other
# cpu types and update it when such a failure occurs.
#
From Mike Frysinger: include the Blackfin processor as one of the processors that don't support unaligned accesses.
2008-02-27 03:17:56 +08:00
alpha*|arm*|bfin*|hp*|mips*|sh*|sparc*|ia64|nv1)
Initial revision
1999-10-08 07:47:09 +08:00
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 If using gcc and the file .devel exists:
dnl Compile with -g (if supported) and -Wall
Add a few more GCC warnings on GCC >= 2 for ".devel" builds. From Neil T. Spring: fixes for many of those warnings: addrtoname.c, configure.in: Linux needs netinet/ether.h for ether_ntohost print-*.c: change char *foo = "bar" to const char *foo = "bar" to appease -Wwrite-strings; should affect no run-time behavior. print-*.c: make some variables unsigned. print-bgp.c: plen ('prefix len') is unsigned, no reason to validate by comparing to zero. print-cnfp.c, print-rx.c: use intoa, provided by addrtoname, instead of inet_ntoa. print-domain.c: unsigned int l; (l=foo()) < 0 is guaranteed to be false, so check for (u_int)-1, which represents failure, explicitly. print-isakmp.c: complete initialization of attrmap objects. print-lwres.c: "if(x); print foo;" seemed much more likely to be intended to be "if(x) { print foo; }". print-smb.c: complete initialization of some structures. In addition, add some fixes for the signed vs. unsigned comparison warnings: extract.h: cast the result of the byte-extraction-and-combining, as, at least for the 16-bit version, C's integral promotions will turn "u_int16_t" into "int" if there are other "int"s nearby. print-*.c: make some more variables unsigned, or add casts to an unsigned type of signed values known not to be negative, or add casts to "int" of unsigned values known to fit in an "int", and make other changes needed to handle the aforementioned variables now being unsigned. print-isakmp.c: clean up the handling of error/status indicators in notify messages. print-ppp.c: get rid of a check that an unsigned quantity is >= 0. print-radius.c: clean up some of the bounds checking. print-smb.c: extract the word count into a "u_int" to avoid the aforementioned problems with C's integral promotions. print-snmp.c: change a check that an unsigned variable is >= 0 to a check that it's != 0. Also, fix some formats to use "%u" rather than "%d" for unsigned quantities.
2002-09-05 08:00:07 +08:00
dnl If using gcc 2 or later, do extra prototype checking and some other
dnl checks
Initial revision
1999-10-08 07:47:09 +08:00
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 ${LBL_CFLAGS}"
fi
if test -f .devel ; then
if test "$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
Add -Wpointer-arith to the list of warnings we enable with GCC.
2005-11-08 10:59:40 +08:00
$1="$$1 -Wmissing-prototypes -Wstrict-prototypes -Wwrite-strings -Wpointer-arith -W"
Initial revision
1999-10-08 07:47:09 +08:00
fi
fi
else
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
case "$host_os" in
Initial revision
1999-10-08 07:47:09 +08:00
irix6*)
V_CCOPT="$V_CCOPT -n32"
;;
*)
;;
esac
fi
Replace "target_cpu", "target_os", and AC_CANONICAL_SYSTEM with "host_cpu", "host_os", and AC_CANONICAL_HOST, as per Maciej W. Rozycki's patch.
2001-12-10 16:41:15 +08:00
os=`echo $host_os | sed -e 's/\([[0-9]][[0-9]]*\)[[^0-9]].*$/\1/'`
Initial revision
1999-10-08 07:47:09 +08:00
name="lbl/os-$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
Explain why "AC_LBL_CHECK_LIB" isn't used any more.
2002-08-05 05:20:29 +08:00
dnl XXX - "AC_LBL_LIBRARY_NET" was redone to use "AC_SEARCH_LIBS"
dnl rather than "AC_LBL_CHECK_LIB", so this isn't used any more.
dnl We keep it around for reference purposes in case it's ever
dnl useful in the future.
Note that "AC_LBL_CHECK_LIB" isn't used any more.
2002-08-04 06:32:36 +08:00
dnl
Initial revision
1999-10-08 07:47:09 +08:00
define(AC_LBL_CHECK_LIB,
[AC_MSG_CHECKING([for $2 in -l$1])
Don't include <net/ethernet.h> when checking for buggy ether_ntohost. Don't check for getipnodebyname(), since we don't use it. Use AC_SEARCH_LIBS instead of AC_CHECK_LIB for -lnsl, so that it doesn't get included when not needed. Redo AC_LBL_LIBRARY_NET to use AC_SEARCH_LIBS extensively.
2001-10-09 00:17:02 +08:00
dnl Use a cache variable name containing the library, function
dnl name, and extra libraries to link with, because the test really is
dnl for library $1 defining function $2, when linked with potinal
dnl library $5, not just for library $1. Separate tests with the same
dnl $1 and different $2's or $5's may have different results.
Initial revision
1999-10-08 07:47:09 +08:00
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):
Don't include <net/ethernet.h> when checking for buggy ether_ntohost. Don't check for getipnodebyname(), since we don't use it. Use AC_SEARCH_LIBS instead of AC_CHECK_LIB for -lnsl, so that it doesn't get included when not needed. Redo AC_LBL_LIBRARY_NET to use AC_SEARCH_LIBS extensively.
2001-10-09 00:17:02 +08:00
# Some OSes (eg. Solaris) place it in libnsl
# Some strange OSes (SINIX) have it in libsocket:
AC_SEARCH_LIBS(gethostbyname, nsl socket resolv)
# Unfortunately libsocket sometimes depends on libnsl and
# AC_SEARCH_LIBS isn't up to the task of handling dependencies like this.
if test "$ac_cv_search_gethostbyname" = "no"
then
AC_CHECK_LIB(socket, gethostbyname,
LIBS="-lsocket -lnsl $LIBS", , -lnsl)
fi
AC_SEARCH_LIBS(socket, socket, ,
AC_CHECK_LIB(socket, socket, LIBS="-lsocket -lnsl $LIBS", , -lnsl))
Initial revision
1999-10-08 07:47:09 +08:00
# DLPI needs putmsg under HPUX so test for -lstr while we're at it
Don't include <net/ethernet.h> when checking for buggy ether_ntohost. Don't check for getipnodebyname(), since we don't use it. Use AC_SEARCH_LIBS instead of AC_CHECK_LIB for -lnsl, so that it doesn't get included when not needed. Redo AC_LBL_LIBRARY_NET to use AC_SEARCH_LIBS extensively.
2001-10-09 00:17:02 +08:00
AC_SEARCH_LIBS(putmsg, str)
Initial revision
1999-10-08 07:47:09 +08:00
])
Bring in KAME IPv6 tcpdump. replaces esp/ah/isakmp decoder. Hope I did not break anything. Portability on IPv4-only node needs checking, I'll do this very soon. (sorry for rather jumbo commit) XXx what is _FAVOR_BSD?
1999-10-30 13:11:06 +08:00
dnl Copyright (c) 1999 WIDE Project. All rights reserved.
dnl
dnl Redistribution and use in source and binary forms, with or without
dnl modification, are permitted provided that the following conditions
dnl are met:
dnl 1. Redistributions of source code must retain the above copyright
dnl notice, this list of conditions and the following disclaimer.
dnl 2. Redistributions in binary form must reproduce the above copyright
dnl notice, this list of conditions and the following disclaimer in the
dnl documentation and/or other materials provided with the distribution.
dnl 3. Neither the name of the project nor the names of its contributors
dnl may be used to endorse or promote products derived from this software
dnl without specific prior written permission.
dnl
dnl THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
dnl ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
dnl IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
dnl ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
dnl FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
dnl DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
dnl OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
dnl HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
dnl LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
dnl OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
dnl SUCH DAMAGE.
dnl
dnl Checks to see if AF_INET6 is defined
AC_DEFUN(AC_CHECK_AF_INET6, [
AC_MSG_CHECKING(for AF_INET6)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <sys/socket.h>],
[int a = AF_INET6],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes ; then
AC_DEFINE(HAVE_AF_INET6)
fi
])
dnl
dnl Checks to see if the sockaddr struct has the 4.4 BSD sa_len member
dnl borrowed from LBL libpcap
AC_DEFUN(AC_CHECK_SA_LEN, [
AC_MSG_CHECKING(if sockaddr struct has sa_len member)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <sys/socket.h>],
[u_int i = sizeof(((struct sockaddr *)0)->sa_len)],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes ; then
AC_DEFINE(HAVE_SOCKADDR_SA_LEN)
fi
])
dnl
dnl Checks for portable prototype declaration macro
AC_DEFUN(AC_CHECK_PORTABLE_PROTO, [
AC_MSG_CHECKING(for __P)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <unistd.h>],
[int f __P(())],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_PORTABLE_PROTOTYPE)
fi
])
dnl checks for u_intXX_t
AC_DEFUN(AC_CHECK_BITTYPES, [
$1=yes
dnl check for u_int8_t
AC_MSG_CHECKING(for u_int8_t)
AC_CACHE_VAL(ac_cv_u_int8_t,
AC_TRY_COMPILE([
# include <sys/types.h>],
[u_int8_t i],
ac_cv_u_int8_t=yes,
ac_cv_u_int8_t=no))
AC_MSG_RESULT($ac_cv_u_int8_t)
if test $ac_cv_u_int8_t = yes; then
AC_DEFINE(HAVE_U_INT8_T)
else
$1=no
fi
dnl check for u_int16_t
AC_MSG_CHECKING(for u_int16_t)
AC_CACHE_VAL(ac_cv_u_int16_t,
AC_TRY_COMPILE([
# include <sys/types.h>],
[u_int16_t i],
ac_cv_u_int16_t=yes,
ac_cv_u_int16_t=no))
AC_MSG_RESULT($ac_cv_u_int16_t)
if test $ac_cv_u_int16_t = yes; then
AC_DEFINE(HAVE_U_INT16_T)
else
$1=no
fi
dnl check for u_int32_t
AC_MSG_CHECKING(for u_int32_t)
AC_CACHE_VAL(ac_cv_u_int32_t,
AC_TRY_COMPILE([
# include <sys/types.h>],
[u_int32_t i],
ac_cv_u_int32_t=yes,
ac_cv_u_int32_t=no))
AC_MSG_RESULT($ac_cv_u_int32_t)
if test $ac_cv_u_int32_t = yes; then
AC_DEFINE(HAVE_U_INT32_T)
else
$1=no
fi
First stage of adding support for 64-bit integral data types - this causes "int64_t" and "u_int64_t" to be defined by the configure script, and causes "missing/bittypes.h" to attempt to define "u_int64_t" in a fashion that should, with any luck, work on MSVC++ and various flavors of GNU C on Windows.
2004-04-17 12:33:16 +08:00
dnl check for u_int64_t
AC_MSG_CHECKING(for u_int64_t)
AC_CACHE_VAL(ac_cv_u_int64_t,
AC_TRY_COMPILE([
# include <sys/types.h>],
[u_int64_t i],
ac_cv_u_int64_t=yes,
ac_cv_u_int64_t=no))
AC_MSG_RESULT($ac_cv_u_int64_t)
if test $ac_cv_u_int64_t = yes; then
AC_DEFINE(HAVE_U_INT64_T)
else
$1=no
fi
Bring in KAME IPv6 tcpdump. replaces esp/ah/isakmp decoder. Hope I did not break anything. Portability on IPv4-only node needs checking, I'll do this very soon. (sorry for rather jumbo commit) XXx what is _FAVOR_BSD?
1999-10-30 13:11:06 +08:00
])
dnl
dnl Checks for addrinfo structure
AC_DEFUN(AC_STRUCT_ADDRINFO, [
AC_MSG_CHECKING(for addrinfo)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <netdb.h>],
[struct addrinfo a],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_ADDRINFO)
split checks for struct addrinfo and NI_xxx. From: Juergen Schoenwaelder <schoenw@ibr.cs.tu-bs.de>
2000-01-21 12:06:17 +08:00
else
AC_DEFINE(NEED_ADDRINFO_H)
fi
])
dnl
dnl Checks for NI_MAXSERV
AC_DEFUN(AC_NI_MAXSERV, [
AC_MSG_CHECKING(for NI_MAXSERV)
AC_CACHE_VAL($1,
AC_EGREP_CPP(yes, [#include <netdb.h>
#ifdef NI_MAXSERV
yes
#endif],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 != yes; then
AC_DEFINE(NEED_ADDRINFO_H)
fi
])
dnl
dnl Checks for NI_NAMEREQD
AC_DEFUN(AC_NI_NAMEREQD, [
AC_MSG_CHECKING(for NI_NAMEREQD)
AC_CACHE_VAL($1,
AC_EGREP_CPP(yes, [#include <netdb.h>
#ifdef NI_NOFQDN
yes
#endif],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 != yes; then
AC_DEFINE(NEED_ADDRINFO_H)
Bring in KAME IPv6 tcpdump. replaces esp/ah/isakmp decoder. Hope I did not break anything. Portability on IPv4-only node needs checking, I'll do this very soon. (sorry for rather jumbo commit) XXx what is _FAVOR_BSD?
1999-10-30 13:11:06 +08:00
fi
])
dnl
dnl Checks for sockaddr_storage structure
AC_DEFUN(AC_STRUCT_SA_STORAGE, [
AC_MSG_CHECKING(for sockaddr_storage)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <sys/socket.h>],
[struct sockaddr_storage s],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_SOCKADDR_STORAGE)
fi
])
dnl
dnl Checks for macro of IP address size
AC_DEFUN(AC_CHECK_ADDRSZ, [
$1=yes
dnl check for INADDRSZ
AC_MSG_CHECKING(for INADDRSZ)
AC_CACHE_VAL(ac_cv_inaddrsz,
AC_TRY_COMPILE([
# include <arpa/nameser.h>],
[int a = INADDRSZ],
ac_cv_inaddrsz=yes,
ac_cv_inaddrsz=no))
AC_MSG_RESULT($ac_cv_inaddrsz)
if test $ac_cv_inaddrsz = yes; then
AC_DEFINE(HAVE_INADDRSZ)
else
$1=no
fi
dnl check for IN6ADDRSZ
AC_MSG_CHECKING(for IN6ADDRSZ)
AC_CACHE_VAL(ac_cv_in6addrsz,
AC_TRY_COMPILE([
# include <arpa/nameser.h>],
[int a = IN6ADDRSZ],
ac_cv_in6addrsz=yes,
ac_cv_in6addrsz=no))
AC_MSG_RESULT($ac_cv_in6addrsz)
if test $ac_cv_in6addrsz = yes; then
AC_DEFINE(HAVE_IN6ADDRSZ)
else
$1=no
fi
])
dnl
dnl check for RES_USE_INET6
AC_DEFUN(AC_CHECK_RES_USE_INET6, [
AC_MSG_CHECKING(for RES_USE_INET6)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <netinet/in.h>
# include <resolv.h>],
[int a = RES_USE_INET6],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_RES_USE_INET6)
fi
])
dnl
dnl check for AAAA
AC_DEFUN(AC_CHECK_AAAA, [
AC_MSG_CHECKING(for AAAA)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
- enable build outside of the tree - endian checks (use WORDS_BIGENDIAN) - fallback def for IPPROTO_{AH,ESP} - sa_len issues - do not use bittypes.h, respect AC_LBL_CHECK_TYPES
1999-10-30 15:36:34 +08:00
# include <sys/types.h>
Bring in KAME IPv6 tcpdump. replaces esp/ah/isakmp decoder. Hope I did not break anything. Portability on IPv4-only node needs checking, I'll do this very soon. (sorry for rather jumbo commit) XXx what is _FAVOR_BSD?
1999-10-30 13:11:06 +08:00
# include <arpa/nameser.h>],
[int a = T_AAAA],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_AAAA)
fi
])
dnl
dnl check for struct res_state_ext
AC_DEFUN(AC_STRUCT_RES_STATE_EXT, [
AC_MSG_CHECKING(for res_state_ext)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <netinet/in.h>
# include <netinet6/in6.h>
# include <resolv.h>],
[struct __res_state_ext e],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_RES_STATE_EXT)
fi
])
dnl
dnl check for struct res_state_ext
AC_DEFUN(AC_STRUCT_RES_STATE, [
AC_MSG_CHECKING(for nsort in res_state)
AC_CACHE_VAL($1,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <netinet/in.h>
# include <netinet6/in6.h>
# include <resolv.h>],
[struct __res_state e; e.nsort = 0],
$1=yes,
$1=no))
AC_MSG_RESULT($$1)
if test $$1 = yes; then
AC_DEFINE(HAVE_NEW_RES_STATE)
fi
])
HP-UX 10.20 build fix <http://www.sics.se/~assar/tcpdump_patches/13> #ifdef h_errno, snprintf -> sprintf, arpa/inet.h for [hn]to[hn][sl]
1999-10-31 07:45:50 +08:00
dnl
dnl check for h_errno
AC_DEFUN(AC_VAR_H_ERRNO, [
AC_MSG_CHECKING(for h_errno)
AC_CACHE_VAL(ac_cv_var_h_errno,
AC_TRY_COMPILE([
# include <sys/types.h>
# include <netdb.h>],
[int foo = h_errno;],
ac_cv_var_h_errno=yes,
ac_cv_var_h_errno=no))
AC_MSG_RESULT($ac_cv_var_h_errno)
if test "$ac_cv_var_h_errno" = "yes"; then
AC_DEFINE(HAVE_H_ERRNO)
fi
])
(AC_C___ATTRIBUTE__): add
2000-04-01 20:09:13 +08:00
dnl
dnl Test for __attribute__
dnl
AC_DEFUN(AC_C___ATTRIBUTE__, [
AC_MSG_CHECKING(for __attribute__)
AC_CACHE_VAL(ac_cv___attribute__, [
AC_TRY_COMPILE works only for code that fits inside "main()"; the test for __attribute__ doesn't fit inside "main()" with GCC 4.0, as it defines a function.
2005-04-21 11:50:29 +08:00
AC_COMPILE_IFELSE(
AC_LANG_SOURCE([[
(AC_C___ATTRIBUTE__): add
2000-04-01 20:09:13 +08:00
#include <stdlib.h>
AC_TRY_COMPILE works only for code that fits inside "main()"; the test for __attribute__ doesn't fit inside "main()" with GCC 4.0, as it defines a function.
2005-04-21 11:50:29 +08:00
(AC_C___ATTRIBUTE__): add
2000-04-01 20:09:13 +08:00
static void foo(void) __attribute__ ((noreturn));
static void
foo(void)
{
exit(1);
}
AC_TRY_COMPILE works only for code that fits inside "main()"; the test for __attribute__ doesn't fit inside "main()" with GCC 4.0, as it defines a function.
2005-04-21 11:50:29 +08:00
int
main(int argc, char **argv)
{
foo();
}
]]),
(AC_C___ATTRIBUTE__): add
2000-04-01 20:09:13 +08:00
ac_cv___attribute__=yes,
ac_cv___attribute__=no)])
if test "$ac_cv___attribute__" = "yes"; then
AC_DEFINE(HAVE___ATTRIBUTE__, 1, [define if your compiler has __attribute__])
Have the configure script arrange that the Makefile define _U_ appropriately, and that GNUmakefile and the MSVC++ project file define it apppriately, as we do with libpcap, rather than defining it in "interface.h". Undo the rcsid-shuffling and addition of extra #includes, as we no longer need to arrange that "interface.h" be included before using _U_ in an RCS ID or copyright.
2003-11-16 17:36:07 +08:00
V_DEFS="$V_DEFS -D_U_=\"__attribute__((unused))\""
else
V_DEFS="$V_DEFS -D_U_=\"\""
(AC_C___ATTRIBUTE__): add
2000-04-01 20:09:13 +08:00
fi
AC_MSG_RESULT($ac_cv___attribute__)
])
Have --with-crypto take an optional argument, specifying where libcrypto can be found. If --with-crypto is specified, and libcrypto isn't found, fail, as presumably the user expected libcrypto to be available.
2008-02-27 04:47:12 +08:00
AC_DEFUN(AC_LBL_SSLEAY,
[
From Michael Riepe: On e.g. an x86_64 Linux system, configure won't find libcrypto because it's located in .../lib64. As a temporal workaround, use the last part of $libdir instead of "lib". On the long run, AC_LBL_SSLEAY should probably be rewritten.
2009-03-24 23:42:47 +08:00
#
# Find the last component of $libdir; it's not necessarily
# "lib" - it might be "lib64" on, for example, x86-64
# Linux systems.
#
# We assume the directory in which we're looking for
# libcrypto has a subdirectory with that as its name.
#
tmplib=`echo "$libdir" | sed 's,.*/,,'`
Have --with-crypto take an optional argument, specifying where libcrypto can be found. If --with-crypto is specified, and libcrypto isn't found, fail, as presumably the user expected libcrypto to be available.
2008-02-27 04:47:12 +08:00
#
# XXX - is there a better way to check if a given library is
# in a given directory than checking each of the possible
# shared library suffixes?
#
# Are there any other suffixes we need to look for? Do we
# have to worry about ".so.{version}"?
#
# Or should we just look for "libcrypto.*"?
#
From Michael Riepe: On e.g. an x86_64 Linux system, configure won't find libcrypto because it's located in .../lib64. As a temporal workaround, use the last part of $libdir instead of "lib". On the long run, AC_LBL_SSLEAY should probably be rewritten.
2009-03-24 23:42:47 +08:00
if test -d "$1/$tmplib" -a \( -f "$1/$tmplib/libcrypto.a" -o \
-f "$1/$tmplib/libcrypto.so" -o \
-f "$1/$tmplib/libcrypto.sl" -o \
-f "$1/$tmplib/libcrypto.dylib" \); then
Have --with-crypto take an optional argument, specifying where libcrypto can be found. If --with-crypto is specified, and libcrypto isn't found, fail, as presumably the user expected libcrypto to be available.
2008-02-27 04:47:12 +08:00
ac_cv_ssleay_path="$1"
fi
#
# Make sure we have the headers as well.
#
if test -d "$1/include/openssl" -a -f "$1/include/openssl/des.h"; then
incdir="-I$1/include"
fi
])
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