1 dnl Macros that test for specific features.
2 dnl This file is part of the Autoconf packaging for Wireshark.
3 dnl Copyright (C) 1998-2000 by Gerald Combs.
7 dnl This program is free software; you can redistribute it and/or modify
8 dnl it under the terms of the GNU General Public License as published by
9 dnl the Free Software Foundation; either version 2, or (at your option)
10 dnl any later version.
12 dnl This program is distributed in the hope that it will be useful,
13 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
14 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 dnl GNU General Public License for more details.
17 dnl You should have received a copy of the GNU General Public License
18 dnl along with this program; if not, write to the Free Software
19 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
22 dnl As a special exception, the Free Software Foundation gives unlimited
23 dnl permission to copy, distribute and modify the configure scripts that
24 dnl are the output of Autoconf. You need not follow the terms of the GNU
25 dnl General Public License when using or distributing such scripts, even
26 dnl though portions of the text of Autoconf appear in them. The GNU
27 dnl General Public License (GPL) does govern all other use of the material
28 dnl that constitutes the Autoconf program.
30 dnl Certain portions of the Autoconf source text are designed to be copied
31 dnl (in certain cases, depending on the input) into the output of
32 dnl Autoconf. We call these the "data" portions. The rest of the Autoconf
33 dnl source text consists of comments plus executable code that decides which
34 dnl of the data portions to output in any given case. We call these
35 dnl comments and executable code the "non-data" portions. Autoconf never
36 dnl copies any of the non-data portions into its output.
38 dnl This special exception to the GPL applies to versions of Autoconf
39 dnl released by the Free Software Foundation. When you make and
40 dnl distribute a modified version of Autoconf, you may extend this special
41 dnl exception to the GPL to apply to your modified version as well, *unless*
42 dnl your modified version has the potential to copy into its output some
43 dnl of the text that was the non-data portion of the version that you started
44 dnl with. (In other words, unless your change moves or copies text from
45 dnl the non-data portions to the data portions.) If your modification has
46 dnl such potential, you must delete any notice of this special exception
47 dnl to the GPL from your modified version.
49 dnl Written by David MacKenzie, with help from
50 dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
51 dnl Roland McGrath, Noah Friedman, david d zuhn, and many others.
54 # AC_WIRESHARK_ADD_DASH_L
56 # Add to the variable specified as the first argument a "-L" flag for the
57 # directory specified as the second argument, and, on Solaris, add a
58 # "-R" flag for it as well.
60 # XXX - IRIX, and other OSes, may require some flag equivalent to
63 AC_DEFUN([AC_WIRESHARK_ADD_DASH_L],
74 # AC_WIRESHARK_STRUCT_SA_LEN
76 dnl AC_STRUCT_ST_BLKSIZE extracted from the file in question,
77 dnl "acspecific.m4" in GNU Autoconf 2.12, and turned into
78 dnl AC_WIRESHARK_STRUCT_SA_LEN, which checks if "struct sockaddr"
79 dnl has the 4.4BSD "sa_len" member, and defines HAVE_SA_LEN; that's
80 dnl what's in this file.
81 dnl Done by Guy Harris <guy@alum.mit.edu> on 1998-11-14.
83 dnl ### Checks for structure members
85 AC_DEFUN([AC_WIRESHARK_STRUCT_SA_LEN],
86 [AC_CACHE_CHECK([for sa_len in struct sockaddr], ac_cv_wireshark_struct_sa_len,
87 [AC_TRY_COMPILE([#include <sys/types.h>
88 #include <sys/socket.h>], [struct sockaddr s; s.sa_len;],
89 ac_cv_wireshark_struct_sa_len=yes, ac_cv_wireshark_struct_sa_len=no)])
90 if test $ac_cv_wireshark_struct_sa_len = yes; then
91 AC_DEFINE(HAVE_SA_LEN, 1, [Define if sa_len field exists in struct sockaddr])
97 dnl Check whether a given format can be used to print 64-bit integers
99 AC_DEFUN([AC_WIRESHARK_CHECK_64BIT_FORMAT],
101 AC_MSG_CHECKING([whether %$1x can be used to format 64-bit integers])
106 # ifdef HAVE_INTTYPES_H
107 #include <inttypes.h>
109 #include <glibconfig.h>
111 #include <sys/types.h>
117 sprintf(strbuf, "%016$1x", t << 32);
118 if (strcmp(strbuf, "0000000100000000") == 0)
126 AC_DEFINE(PRId64, "$1d", [Format for printing 64-bit signed decimal numbers])
127 AC_DEFINE(PRIo64, "$1o", [Format for printing 64-bit unsigned octal numbers])
128 AC_DEFINE(PRIx64, "$1x", [Format for printing 64-bit unsigned hexadecimal numbers (lower-case)])
129 AC_DEFINE(PRIX64, "$1X", [Format for printing 64-bit unsigned hexadecimal numbers (upper-case)])
130 AC_DEFINE(PRIu64, "$1u", [Format for printing 64-bit unsigned decimal numbers])
140 # AC_WIRESHARK_IPV6_STACK
142 # By Jun-ichiro "itojun" Hagino, <itojun@iijlab.net>
144 AC_DEFUN([AC_WIRESHARK_IPV6_STACK],
149 AC_MSG_CHECKING([ipv6 stack type])
150 for i in v6d toshiba kame inria zeta linux linux-glibc solaris8; do
154 #include </usr/local/v6/include/sys/types.h>
158 [v6type=$i; v6lib=v6;
159 v6libdir=/usr/local/v6/lib;
160 CFLAGS="-I/usr/local/v6/include $CFLAGS"])
164 #include <sys/param.h>
165 #ifdef _TOSHIBA_INET6
168 [v6type=$i; v6lib=inet6;
169 v6libdir=/usr/local/v6/lib;
170 CFLAGS="-DINET6 $CFLAGS"])
174 #include <netinet/in.h>
178 [v6type=$i; v6lib=inet6;
179 v6libdir=/usr/local/v6/lib;
180 CFLAGS="-DINET6 $CFLAGS"])
184 #include <netinet/in.h>
185 #ifdef IPV6_INRIA_VERSION
188 [v6type=$i; CFLAGS="-DINET6 $CFLAGS"])
192 #include <sys/param.h>
193 #ifdef _ZETA_MINAMI_INET6
196 [v6type=$i; v6lib=inet6;
197 v6libdir=/usr/local/v6/lib;
198 CFLAGS="-DINET6 $CFLAGS"])
201 if test -d /usr/inet6; then
205 CFLAGS="-DINET6 $CFLAGS"
210 #include <features.h>
211 #if defined(__GLIBC__) && defined(__GLIBC_MINOR__)
212 #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) || __GLIBC__ > 2
216 [v6type=$i; v6lib=inet6; CFLAGS="-DINET6 $CFLAGS"])
219 if test "`uname -s`" = "SunOS" && test "`uname -r`" = "5.8"; then
222 [CFLAGS="-DINET6 -DSOLARIS8_INET6 $CFLAGS"]
226 if test "$v6type" != "unknown"; then
231 if test "$v6lib" != "none"; then
232 for dir in $v6libdir /usr/local/v6/lib /usr/local/lib; do
233 if test -d $dir -a -f $dir/lib$v6lib.a; then
234 LIBS="-L$dir $LIBS -l$v6lib"
242 AC_MSG_RESULT(["$v6type, $v6lib"])
246 # AC_WIRESHARK_GETHOSTBY_LIB_CHECK
248 # Checks whether we need "-lnsl" to get "gethostby*()", which we use
251 # Adapted from stuff in the AC_PATH_XTRA macro in "acspecific.m4" in
252 # GNU Autoconf 2.13; the comment came from there.
253 # Done by Guy Harris <guy@alum.mit.edu> on 2000-01-14.
255 AC_DEFUN([AC_WIRESHARK_GETHOSTBY_LIB_CHECK],
257 # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
258 # to get the SysV transport functions.
259 # chad@anasazi.com says the Pyramid MIS-ES running DC/OSx (SVR4)
261 # The nsl library prevents programs from opening the X display
262 # on Irix 5.2, according to dickey@clark.net.
263 AC_CHECK_FUNC(gethostbyname, ,
264 AC_CHECK_LIB(nsl, gethostbyname, NSL_LIBS="-lnsl"))
269 # AC_WIRESHARK_SOCKET_LIB_CHECK
271 # Checks whether we need "-lsocket" to get "socket()", which is used
272 # by libpcap on some platforms - and, in effect, "gethostby*()" on
273 # most if not all platforms (so that it can use NIS or DNS or...
274 # to look up host names).
276 # Adapted from stuff in the AC_PATH_XTRA macro in "acspecific.m4" in
277 # GNU Autoconf 2.13; the comment came from there.
278 # Done by Guy Harris <guy@alum.mit.edu> on 2000-01-14.
280 # We use "connect" because that's what AC_PATH_XTRA did.
282 AC_DEFUN([AC_WIRESHARK_SOCKET_LIB_CHECK],
284 # lieder@skyler.mavd.honeywell.com says without -lsocket,
285 # socket/setsockopt and other routines are undefined under SCO ODT
286 # 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary
287 # on later versions), says simon@lia.di.epfl.ch: it contains
288 # gethostby* variants that don't use the nameserver (or something).
289 # -lsocket must be given before -lnsl if both are needed.
290 # We assume that if connect needs -lnsl, so does gethostbyname.
291 AC_CHECK_FUNC(connect, ,
292 AC_CHECK_LIB(socket, connect, SOCKET_LIBS="-lsocket",
293 AC_MSG_ERROR(Function 'socket' not found.), $NSL_LIBS))
294 AC_SUBST(SOCKET_LIBS)
298 # AC_WIRESHARK_BREAKLOOP_TRY_LINK
300 AC_DEFUN([AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK],
316 ws_breakloop_compiled=yes
319 ws_breakloop_compiled=no
326 # AC_WIRESHARK_PCAP_CHECK
328 AC_DEFUN([AC_WIRESHARK_PCAP_CHECK],
330 if test -z "$pcap_dir"
333 # XXX need to set a var AC_CHECK_HEADER(pcap.h,,)
336 # The user didn't specify a directory in which libpcap resides;
337 # we assume that the current library search path will work,
338 # but we may have to look for the header in a "pcap"
339 # subdirectory of "/usr/include" or "/usr/local/include",
340 # as some systems apparently put "pcap.h" in a "pcap"
341 # subdirectory, and we also check "$prefix/include" - and
342 # "$prefix/include/pcap", in case $prefix is set to
343 # "/usr/include" or "/usr/local/include".
345 # XXX - should we just add "$prefix/include" to the include
346 # search path and "$prefix/lib" to the library search path?
348 AC_MSG_CHECKING(for extraneous pcap header directories)
350 pcap_dir_list="/usr/include/pcap $prefix/include/pcap $prefix/include"
351 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
352 pcap_dir_list="$pcap_dir_list /usr/local/include/pcap"
354 for pcap_dir in $pcap_dir_list
356 if test -d $pcap_dir ; then
357 if test x$pcap_dir != x/usr/include -a x$pcap_dir != x/usr/local/include ; then
358 CFLAGS="$CFLAGS -I$pcap_dir"
359 CPPFLAGS="$CPPFLAGS -I$pcap_dir"
361 found_pcap_dir=" $found_pcap_dir -I$pcap_dir"
366 if test "$found_pcap_dir" != "" ; then
367 AC_MSG_RESULT(found --$found_pcap_dir added to CFLAGS)
369 AC_MSG_RESULT(not found)
373 # The user specified a directory in which libpcap resides,
374 # so add the "include" subdirectory of that directory to
375 # the include file search path and the "lib" subdirectory
376 # of that directory to the library search path.
378 # XXX - if there's also a libpcap in a directory that's
379 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
380 # make us find the version in the specified directory,
381 # as the compiler and/or linker will search that other
382 # directory before it searches the specified directory.
384 CFLAGS="$CFLAGS -I$pcap_dir/include"
385 CPPFLAGS="$CPPFLAGS -I$pcap_dir/include"
386 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $pcap_dir/lib)
390 AC_CHECK_HEADER(pcap.h,,
391 AC_MSG_ERROR([[Header file pcap.h not found; if you installed libpcap
392 from source, did you also do \"make install-incl\", and if you installed a
393 binary package of libpcap, is there also a developer's package of libpcap,
394 and did you also install that package?]]))
397 # Check to see if we find "pcap_open_live" in "-lpcap".
398 # Also check for various additional libraries that libpcap might
401 AC_CHECK_LIB(pcap, pcap_open_live,
404 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
406 ac_wireshark_extras_found=no
408 for extras in "-lcfg -lodm" "-lpfring"
410 AC_MSG_CHECKING([for pcap_open_live in -lpcap with $extras])
411 LIBS="-lpcap $extras"
413 # XXX - can't we use AC_CHECK_LIB here?
420 pcap_open_live(NULL, 0, 0, 0, NULL);
423 ac_wireshark_extras_found=yes
425 PCAP_LIBS="-lpcap $extras"
426 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
431 if test x$ac_wireshark_extras_found = xyes
436 if test x$ac_wireshark_extras_found = xno
438 AC_MSG_ERROR([Can't link with library libpcap.])
441 ], $SOCKET_LIBS $NSL_LIBS)
445 # Check whether various variables and functions are defined by
449 AC_MSG_CHECKING(whether pcap_version is defined by libpcap)
450 LIBS="$PCAP_LIBS $SOCKET_LIBS $NSL_LIBS $LIBS"
454 extern char *pcap_version;
457 printf ("%s\n", pcap_version);
459 ac_cv_pcap_version_defined=yes,
460 ac_cv_pcap_version_defined=no,
461 [echo $ac_n "cross compiling; assumed OK... $ac_c"])
462 if test "$ac_cv_pcap_version_defined" = yes ; then
464 AC_DEFINE(HAVE_PCAP_VERSION, 1, [Define if libpcap version is known])
468 AC_CHECK_FUNCS(pcap_open_dead pcap_freecode)
470 # pcap_breakloop may be present in the library but not declared
471 # in the pcap.h header file. If it's not declared in the header
472 # file, attempts to use it will get warnings, and, if we're
473 # building with warnings treated as errors, that warning will
474 # cause compilation to fail.
476 # We are therefore first testing whether the function is present
477 # and then, if we're compiling with warnings as errors, testing
478 # whether it is usable. It is usable if it compiles without
479 # a -Wimplicit warning (the "compile with warnings as errors"
480 # option requires GCC). If it is not usable, we fail and tell
481 # the user that the pcap.h header needs to be updated.
483 # Ceteris paribus, this should only happen with Mac OS X 10.3[.x] which
484 # can have an up-to-date pcap library without the corresponding pcap
487 # However, it might also happen on some others OSes with some erroneous
488 # system manipulations where multiple versions of libcap might co-exist
489 # e.g. hand made symbolic link from libpcap.so -> libpcap.so.0.8 but
490 # having the pcap header version 0.7.
492 AC_MSG_CHECKING([whether pcap_breakloop is present])
493 ac_CFLAGS_saved="$CFLAGS"
494 AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK
495 if test "x$ws_breakloop_compiled" = "xyes"; then
497 AC_DEFINE(HAVE_PCAP_BREAKLOOP, 1, [Define if pcap_breakloop is known])
498 if test "x$with_warnings_as_errors" = "xyes"; then
499 AC_MSG_CHECKING([whether pcap_breakloop is usable])
500 CFLAGS="$CFLAGS -Werror -Wimplicit"
501 AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK
502 if test "x$ws_breakloop_compiled" = "xyes"; then
507 [Your pcap library is more recent than your pcap header.
508 As you are building with compiler warnings treated as errors, Wireshark
509 won't be able to use functions not declared in that header.
510 If you wish to build with compiler warnings treated as errors, You should
511 install a newer version of the header file.])
513 CFLAGS="$ac_CFLAGS_saved"
520 # Later versions of Mac OS X 10.3[.x] ship a pcap.h that
521 # doesn't define pcap_if_t but ship an 0.8[.x] libpcap,
522 # so the library has "pcap_findalldevs()", but pcap.h
523 # doesn't define "pcap_if_t" so you can't actually *use*
524 # "pcap_findalldevs()".
526 # That even appears to be true of systems shipped with
527 # 10.3.4, so it doesn't appear only to be a case of
528 # Software Update not updating header files.
530 # (You can work around this by installing the 0.8 header
533 AC_CACHE_CHECK([whether pcap_findalldevs is present and usable],
534 [ac_cv_func_pcap_findalldevs],
543 pcap_if_t *devpointer;
546 pcap_findalldevs(&devpointer, errbuf);
551 ac_cv_func_pcap_findalldevs=yes
554 ac_cv_func_pcap_findalldevs=no
558 # Don't check for other new routines that showed up after
559 # "pcap_findalldevs()" if we don't have a usable
560 # "pcap_findalldevs()", so we don't end up using them if the
561 # "pcap.h" is crufty and old and doesn't declare them.
563 if test $ac_cv_func_pcap_findalldevs = "yes" ; then
564 AC_DEFINE(HAVE_PCAP_FINDALLDEVS, 1,
565 [Define to 1 if you have the `pcap_findalldevs' function and a pcap.h that declares pcap_if_t.])
566 AC_CHECK_FUNCS(pcap_datalink_val_to_name pcap_datalink_name_to_val)
567 AC_CHECK_FUNCS(pcap_list_datalinks pcap_set_datalink pcap_lib_version)
568 AC_CHECK_FUNCS(pcap_get_selectable_fd)
573 AC_DEFUN([AC_WIRESHARK_PCAP_REMOTE_CHECK],
576 LIBS="$PCAP_LIBS $SOCKET_LIBS $NSL_LIBS $LIBS"
577 AC_DEFINE(HAVE_REMOTE, 1, [Define to 1 to enable remote
578 capturing feature in WinPcap library])
579 AC_CHECK_FUNCS(pcap_open pcap_findalldevs_ex pcap_createsrcstr)
580 if test $ac_cv_func_pcap_open = "yes" -a \
581 $ac_cv_func_pcap_findalldevs_ex = "yes" -a \
582 $ac_cv_func_pcap_createsrcstr = "yes" ; then
583 AC_DEFINE(HAVE_PCAP_REMOTE, 1,
584 [Define to 1 if you have WinPcap remote capturing support and prefer to use these new API features.])
586 AC_CHECK_FUNCS(pcap_setsampling)
591 # AC_WIRESHARK_ZLIB_CHECK
593 AC_DEFUN([AC_WIRESHARK_ZLIB_CHECK],
595 if test "x$zlib_dir" != "x"
598 # The user specified a directory in which zlib resides,
599 # so add the "include" subdirectory of that directory to
600 # the include file search path and the "lib" subdirectory
601 # of that directory to the library search path.
603 # XXX - if there's also a zlib in a directory that's
604 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
605 # make us find the version in the specified directory,
606 # as the compiler and/or linker will search that other
607 # directory before it searches the specified directory.
609 wireshark_save_CFLAGS="$CFLAGS"
610 CFLAGS="$CFLAGS -I$zlib_dir/include"
611 wireshark_save_CPPFLAGS="$CPPFLAGS"
612 CPPFLAGS="$CPPFLAGS -I$zlib_dir/include"
613 wireshark_save_LIBS="$LIBS"
614 AC_WIRESHARK_ADD_DASH_L(LIBS, $zlib_dir/lib)
618 # Make sure we have "zlib.h". If we don't, it means we probably
619 # don't have zlib, so don't use it.
621 AC_CHECK_HEADER(zlib.h,,
623 if test "x$zlib_dir" != "x"
626 # The user used "--with-zlib=" to specify a directory
627 # containing zlib, but we didn't find the header file
628 # there; that either means they didn't specify the
629 # right directory or are confused about whether zlib
630 # is, in fact, installed. Report the error and give up.
632 AC_MSG_ERROR([zlib header not found in directory specified in --with-zlib])
634 if test "x$want_zlib" = "xyes"
637 # The user tried to force us to use the library, but we
638 # couldn't find the header file; report an error.
640 AC_MSG_ERROR(Header file zlib.h not found.)
643 # We couldn't find the header file; don't use the
644 # library, as it's probably not present.
651 if test "x$want_zlib" != "xno"
654 # Well, we at least have the zlib header file.
656 # Check for "gzgets()" in zlib, because we need it, but
657 # some older versions of zlib don't have it. It appears
658 # from the zlib ChangeLog that any released version of zlib
659 # with "gzgets()" should have the other routines we
660 # depend on, such as "gzseek()", "gztell()", and "zError()".
662 # Another reason why we require "gzgets()" is that
663 # some versions of zlib that didn't have it, such
664 # as 1.0.8, had a bug in "gzseek()" that meant that it
665 # doesn't work correctly on uncompressed files; this
666 # means we cannot use version 1.0.8. (Unfortunately,
667 # that's the version that comes with recent X11 source,
668 # and many people who install XFree86 on their Slackware
669 # boxes don't realize that they should configure it to
670 # use the native zlib rather than building and installing
671 # the crappy old version that comes with XFree86.)
673 # I.e., we can't just avoid using "gzgets()", as
674 # versions of zlib without "gzgets()" are likely to have
675 # a broken "gzseek()".
677 AC_CHECK_LIB(z, gzgets,
679 if test "x$zlib_dir" != "x"
682 # Put the "-I" and "-L" flags for zlib at
683 # the beginning of CFLAGS, CPPFLAGS, and
687 AC_WIRESHARK_ADD_DASH_L(LIBS, $zlib_dir/lib)
688 LIBS="$LIBS -lz $wireshark_save_LIBS"
692 AC_DEFINE(HAVE_LIBZ, 1, [Define to use libz library])
694 if test "x$zlib_dir" != "x"
697 # Restore the versions of CFLAGS, CPPFLAGS,
698 # and LIBS before we added the "-with-zlib="
699 # directory, as we didn't actually find
700 # zlib there, or didn't find a zlib that
701 # contains gzgets there.
703 CFLAGS="$wireshark_save_CFLAGS"
704 CPPFLAGS="$wireshark_save_CPPFLAGS"
705 LIBS="$wireshark_save_LIBS"
711 if test "x$want_zlib" != "xno"
714 # Well, we at least have the zlib header file and a zlib
717 # Now check for "gzgets()" in zlib when linking with the
718 # linker flags for GTK+ applications; people often grab
719 # XFree86 source and build and install it on their systems,
720 # and they appear sometimes to misconfigure XFree86 so that,
721 # even on systems with zlib, it assumes there is no zlib,
722 # so the XFree86 build process builds and installs its
723 # own zlib in the X11 library directory.
725 # The XFree86 zlib is an older version that lacks
726 # "gzgets()", and that's the zlib with which Wireshark
727 # gets linked, so the build of Wireshark fails.
729 ac_save_CFLAGS="$CFLAGS"
731 CFLAGS="$CFLAGS $GTK_CFLAGS"
732 LIBS="$GTK_LIBS -lz $LIBS"
733 AC_MSG_CHECKING([for gzgets missing when linking with X11])
734 AC_TRY_LINK_FUNC(gzgets, AC_MSG_RESULT(no),
737 AC_MSG_ERROR(old zlib found when linking with X11 - get rid of old zlib.)
739 CFLAGS="$ac_save_CFLAGS"
745 # AC_WIRESHARK_LIBPCRE_CHECK
747 AC_DEFUN([AC_WIRESHARK_LIBPCRE_CHECK],
749 if test "x$pcre_dir" != "x"
752 # The user specified a directory in which libpcre resides,
753 # so add the "include" subdirectory of that directory to
754 # the include file search path and the "lib" subdirectory
755 # of that directory to the library search path.
757 # XXX - if there's also a libpcre in a directory that's
758 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
759 # make us find the version in the specified directory,
760 # as the compiler and/or linker will search that other
761 # directory before it searches the specified directory.
763 wireshark_save_CFLAGS="$CFLAGS"
764 CFLAGS="$CFLAGS -I$pcre_dir/include"
765 wireshark_save_CPPFLAGS="$CPPFLAGS"
766 CPPFLAGS="$CPPFLAGS -I$pcre_dir/include"
767 wireshark_save_LIBS="$LIBS"
769 wireshark_save_LDFLAGS="$LDFLAGS"
770 LDFLAGS="$LDFLAGS -L$pcre_dir/lib"
774 # Make sure we have "pcre.h". If we don't, it means we probably
775 # don't have libpcre, so don't use it.
777 AC_CHECK_HEADER(pcre.h,,
779 if test "x$pcre_dir" != "x"
782 # The user used "--with-pcre=" to specify a directory
783 # containing libpcre, but we didn't find the header file
784 # there; that either means they didn't specify the
785 # right directory or are confused about whether libpcre
786 # is, in fact, installed. Report the error and give up.
788 AC_MSG_ERROR([libpcre header not found in directory specified in --with-pcre])
790 if test "x$want_pcre" = "xyes"
793 # The user tried to force us to use the library, but we
794 # couldn't find the header file; report an error.
796 AC_MSG_ERROR(Header file pcre.h not found.)
799 # We couldn't find the header file; don't use the
800 # library, as it's probably not present.
807 if test "x$want_pcre" != "xno"
810 # Well, we at least have the pcre header file.
812 # We're only using standard functions from libpcre,
813 # so we don't need to perform extra checks.
815 AC_CHECK_LIB(pcre, pcre_compile,
817 if test "x$pcre_dir" != "x"
820 # Put the "-I" and "-L" flags for pcre at
821 # the beginning of CFLAGS, CPPFLAGS,
824 PCRE_LIBS="-L$pcre_dir/lib -lpcre $wireshark_save_LIBS"
828 AC_DEFINE(HAVE_LIBPCRE, 1, [Define to use libpcre library])
830 if test "x$pcre_dir" != "x"
833 # Restore the versions of CFLAGS, CPPFLAGS,
834 # LDFLAGS, and LIBS before we added the
835 # "--with-pcre=" directory, as we didn't
836 # actually find pcre there.
838 CFLAGS="$wireshark_save_CFLAGS"
839 CPPFLAGS="$wireshark_save_CPPFLAGS"
840 LDFLAGS="$wireshark_save_LDFLAGS"
841 LIBS="$wireshark_save_LIBS"
851 # AC_WIRESHARK_LIBLUA_CHECK
853 AC_DEFUN([AC_WIRESHARK_LIBLUA_CHECK],[
855 if test "x$lua_dir" != "x"
858 # The user specified a directory in which liblua resides,
859 # so add the "include" subdirectory of that directory to
860 # the include file search path and the "lib" subdirectory
861 # of that directory to the library search path.
863 # XXX - if there's also a liblua in a directory that's
864 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
865 # make us find the version in the specified directory,
866 # as the compiler and/or linker will search that other
867 # directory before it searches the specified directory.
869 wireshark_save_CFLAGS="$CFLAGS"
870 CFLAGS="$CFLAGS -I$lua_dir/include"
871 wireshark_save_CPPFLAGS="$CPPFLAGS"
872 CPPFLAGS="$CPPFLAGS -I$lua_dir/include"
873 wireshark_save_LIBS="$LIBS"
874 LIBS="$LIBS -L$lua_dir/lib -llua -lm"
875 wireshark_save_LDFLAGS="$LDFLAGS"
876 LDFLAGS="$LDFLAGS -L$lua_dir/lib"
879 # The user specified no directory in which liblua resides,
880 # so just add "-llua -lliblua" to the used libs.
882 wireshark_save_CFLAGS="$CFLAGS"
883 wireshark_save_CPPFLAGS="$CPPFLAGS"
884 wireshark_save_LDFLAGS="$LDFLAGS"
885 wireshark_save_LIBS="$LIBS"
886 LIBS="$LIBS -llua -lm"
890 # Make sure we have "lua.h", "lualib.h" and "lauxlib.h". If we don't, it means we probably
891 # don't have liblua, so don't use it.
893 AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h,,
895 AC_CHECK_HEADERS(lua5.1/lua.h lua5.1/lualib.h lua5.1/lauxlib.h,
897 if test "x$lua_dir" != "x"
899 LUA_INCLUDES="-I$lua_dir/include/lua5.1"
901 # we found lua5.1/lua.h, but we don't know which include dir contains it
902 AC_MSG_ERROR(Header file lua.h was found as lua5.1/lua.h but we can't use it. Please set the PATH for the --with-lua configure parameter. \n probably it is /usr.)
907 if test "x$lua_dir" != "x"
910 # The user used "--with-lua=" to specify a directory
911 # containing liblua, but we didn't find the header file
912 # there; that either means they didn't specify the
913 # right directory or are confused about whether liblua
914 # is, in fact, installed. Report the error and give up.
916 AC_MSG_ERROR([liblua header not found in directory specified in --with-lua])
918 if test "x$want_lua" = "xyes"
921 # The user tried to force us to use the library, but we
922 # couldn't find the header file; report an error.
924 AC_MSG_ERROR(Header file lua.h not found.)
927 # We couldn't find the header file; don't use the
928 # library, as it's probably not present.
936 if test "x$want_lua" != "xno"
939 # Well, we at least have the lua header file.
941 # let's check if the libs are there
944 # At least on Suse 9.3 systems, liblualib needs linking
946 LIBS="$LIBS $LUA_LIBS -lm"
948 AC_CHECK_LIB(lua, lua_call,
950 if test "x$lua_dir" != "x"
953 # Put the "-I" and "-L" flags for lua at
954 # the beginning of CFLAGS, CPPFLAGS,
957 LUA_LIBS="-L$lua_dir/lib -llua -lm"
958 LUA_INCLUDES="-I$lua_dir/include"
965 # we got lua, now look for lualib
967 AC_CHECK_LIB(lualib, luaL_openlib,
972 LUA_LIBS="$LUA_LIBS -llualib"
975 # no lualib, in 5.1 there's only liblua
979 LIBS="$wireshark_save_LIBS $LUA_LIBS"
981 AC_CHECK_LIB(lua, luaL_register,
986 AC_DEFINE(HAVE_LUA_5_1, 1, [Define to use Lua 5.1])
991 if test "x$lua_dir" != "x"
994 # Restore the versions of CFLAGS, CPPFLAGS,
995 # LDFLAGS, and LIBS before we added the
996 # "--with-lua=" directory, as we didn't
997 # actually find lua there.
999 CFLAGS="$wireshark_save_CFLAGS"
1000 CPPFLAGS="$wireshark_save_CPPFLAGS"
1001 LDFLAGS="$wireshark_save_LDFLAGS"
1002 LIBS="$wireshark_save_LIBS"
1005 # User requested --with-lua but it isn't available
1006 if test "x$want_lua" = "xyes"
1008 AC_MSG_ERROR(Linking with liblualib failed.)
1015 # We could not find the libs, maybe we have version number in the lib name
1018 LIBS="$wireshark_save_LIBS -llua5.1 -lm"
1020 AC_CHECK_LIB(lua5.1, luaL_register,
1025 AC_DEFINE(HAVE_LUA_5_1, 1, [Define to use Lua 5.1])
1026 LUA_LIBS=" -llua5.1 -lm"
1029 # Restore the versions of CFLAGS, CPPFLAGS,
1030 # LDFLAGS, and LIBS before we added the
1031 # "--with-lua=" directory, as we didn't
1032 # actually find lua there.
1034 CFLAGS="$wireshark_save_CFLAGS"
1035 CPPFLAGS="$wireshark_save_CPPFLAGS"
1036 LDFLAGS="$wireshark_save_LDFLAGS"
1037 LIBS="$wireshark_save_LIBS"
1039 # User requested --with-lua but it isn't available
1040 if test "x$want_lua" = "xyes"
1042 AC_MSG_ERROR(Linking with liblua failed.)
1048 CFLAGS="$wireshark_save_CFLAGS"
1049 CPPFLAGS="$wireshark_save_CPPFLAGS"
1050 LDFLAGS="$wireshark_save_LDFLAGS"
1051 LIBS="$wireshark_save_LIBS"
1053 AC_SUBST(LUA_INCLUDES)
1059 # AC_WIRESHARK_LIBPORTAUDIO_CHECK
1061 AC_DEFUN([AC_WIRESHARK_LIBPORTAUDIO_CHECK],[
1063 if test "x$portaudio_dir" != "x"
1066 # The user specified a directory in which libportaudio
1067 # resides, so add the "include" subdirectory of that directory to
1068 # the include file search path and the "lib" subdirectory
1069 # of that directory to the library search path.
1071 # XXX - if there's also a libportaudio in a directory that's
1072 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
1073 # make us find the version in the specified directory,
1074 # as the compiler and/or linker will search that other
1075 # directory before it searches the specified directory.
1077 wireshark_save_CFLAGS="$CFLAGS"
1078 CFLAGS="$CFLAGS -I$portaudio_dir/include"
1079 wireshark_save_CPPFLAGS="$CPPFLAGS"
1080 CPPFLAGS="$CPPFLAGS -I$portaudio_dir/include"
1081 wireshark_save_LIBS="$LIBS"
1082 LIBS="$LIBS -L$portaudio_dir/lib -lportaudio"
1083 wireshark_save_LDFLAGS="$LDFLAGS"
1084 LDFLAGS="$LDFLAGS -L$portaudio_dir/lib"
1087 # The user specified no directory in which libportaudio resides,
1088 # so just add "-lportaudio" to the used libs.
1090 wireshark_save_CFLAGS="$CFLAGS"
1091 wireshark_save_CPPFLAGS="$CPPFLAGS"
1092 wireshark_save_LDFLAGS="$LDFLAGS"
1093 wireshark_save_LIBS="$LIBS"
1094 LIBS="$LIBS -lportaudio"
1098 # Make sure we have "portaudio.h". If we don't, it means we probably
1099 # don't have libportaudio, so don't use it.
1101 AC_CHECK_HEADERS(portaudio.h,,
1103 if test "x$portaudio_dir" != "x"
1106 # The user used "--with-portaudio=" to specify a directory
1107 # containing libportaudio, but we didn't find the header file
1108 # there; that either means they didn't specify the
1109 # right directory or are confused about whether libportaudio
1110 # is, in fact, installed. Report the error and give up.
1112 AC_MSG_ERROR([libportaudio header not found in directory specified in --with-portaudio])
1114 CFLAGS="$wireshark_save_CFLAGS"
1115 CPPFLAGS="$wireshark_save_CPPFLAGS"
1116 LDFLAGS="$wireshark_save_LDFLAGS"
1117 LIBS="$wireshark_save_LIBS"
1119 if test "x$want_portaudio" = "xyes"
1122 # The user tried to force us to use the library, but we
1123 # couldn't find the header file; report an error.
1125 AC_MSG_ERROR(Header file portaudio.h not found.)
1128 # We couldn't find the header file; don't use the
1129 # library, as it's probably not present.
1137 # Check whether we have the right version of portaudio
1139 if test "x$want_portaudio" != "xno"
1141 AC_CHECK_TYPE(PortAudioStream,
1142 AC_DEFINE(PORTAUDIO_API_1, 1, [Define if we are using version of of the Portaudio library API]),
1144 [#include <portaudio.h>])
1147 if test "x$want_portaudio" != "xno"
1150 # Well, we at least have the portaudio header file.
1152 # let's check if the libs are there
1155 AC_CHECK_LIB(portaudio, Pa_Initialize,
1157 if test "x$portaudio_dir" != "x"
1160 # Put the "-I" and "-L" flags for portaudio at
1161 # the beginning of CFLAGS, CPPFLAGS,
1162 # LDFLAGS, and LIBS.
1164 PORTAUDIO_LIBS="-L$portaudio_dir/lib -lportaudio"
1165 PORTAUDIO_INCLUDES="-I$portaudio_dir/include"
1167 PORTAUDIO_LIBS="-lportaudio"
1168 PORTAUDIO_INCLUDES=""
1170 AC_DEFINE(HAVE_LIBPORTAUDIO, 1, [Define to use libportaudio library])
1174 # Restore the versions of CFLAGS, CPPFLAGS,
1175 # LDFLAGS, and LIBS before we added the
1176 # "--with-portaudio=" directory, as we didn't
1177 # actually find portaudio there.
1179 CFLAGS="$wireshark_save_CFLAGS"
1180 CPPFLAGS="$wireshark_save_CPPFLAGS"
1181 LDFLAGS="$wireshark_save_LDFLAGS"
1182 LIBS="$wireshark_save_LIBS"
1184 # User requested --with-portaudio but it isn't available
1185 if test "x$want_portaudio" = "xyes"
1187 AC_MSG_ERROR(Linking with libportaudio failed.)
1192 CFLAGS="$wireshark_save_CFLAGS"
1193 CPPFLAGS="$wireshark_save_CPPFLAGS"
1194 LDFLAGS="$wireshark_save_LDFLAGS"
1195 LIBS="$wireshark_save_LIBS"
1196 AC_SUBST(PORTAUDIO_LIBS)
1197 AC_SUBST(PORTAUDIO_INCLUDES)
1203 # AC_WIRESHARK_RPM_CHECK
1204 # Looks for the rpm program, and checks to see if we can redefine "_topdir".
1206 AC_DEFUN([AC_WIRESHARK_RPM_CHECK],
1208 AC_CHECK_PROG(ac_cv_wireshark_have_rpm, rpm, "yes", "no")
1209 if test "x$ac_cv_wireshark_have_rpm" = "xyes"; then
1210 rpm --define '_topdir /tmp' > /dev/null 2>&1
1211 AC_MSG_CHECKING(to see if we can redefine _topdir)
1212 if test $? -eq 0 ; then
1216 AC_MSG_RESULT(no. You'll have to build packages manually.)
1223 # AC_WIRESHARK_GNU_SED_CHECK
1224 # Checks if GNU sed is the first sed in PATH.
1226 AC_DEFUN([AC_WIRESHARK_GNU_SED_CHECK],
1228 AC_MSG_CHECKING(for GNU sed as first sed in PATH)
1229 if ( sh -c "sed --version" </dev/null 2> /dev/null | grep "GNU sed" 2>&1 > /dev/null ) ; then
1239 # AC_WIRESHARK_ADNS_CHECK
1241 AC_DEFUN([AC_WIRESHARK_ADNS_CHECK],
1243 want_adns=defaultyes
1245 if test "x$want_adns" = "xdefaultyes"; then
1247 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
1249 if test -d "$withval"; then
1250 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, ${withval}/lib)
1255 if test "x$want_adns" = "xyes"; then
1256 AC_CHECK_LIB(adns, adns_init,
1259 AC_DEFINE(HAVE_GNU_ADNS, 1, [Define to use GNU ADNS library])
1261 ],, $SOCKET_LIBS $NSL_LIBS
1264 AC_MSG_RESULT(not required)
1270 # AC_WIRESHARK_LIBCAP_CHECK
1272 AC_DEFUN([AC_WIRESHARK_LIBCAP_CHECK],
1274 want_libcap=defaultyes
1276 if test "x$want_libcap" = "xdefaultyes"; then
1278 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
1280 if test -d "$withval"; then
1281 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, ${withval}/lib)
1286 if test "x$want_libcap" = "xyes"; then
1287 AC_CHECK_LIB(cap, cap_set_flag,
1290 AC_DEFINE(HAVE_LIBCAP, 1, [Define to use the libcap library])
1291 have_good_libcap=yes
1295 AC_MSG_RESULT(not required)
1301 # AC_WIRESHARK_KRB5_CHECK
1303 AC_DEFUN([AC_WIRESHARK_KRB5_CHECK],
1305 wireshark_save_CFLAGS="$CFLAGS"
1306 wireshark_save_CPPFLAGS="$CPPFLAGS"
1307 if test "x$krb5_dir" != "x"
1310 # The user specified a directory in which kerberos resides,
1311 # so add the "include" subdirectory of that directory to
1312 # the include file search path and the "lib" subdirectory
1313 # of that directory to the library search path.
1315 # XXX - if there's also a kerberos in a directory that's
1316 # already in CFLAGS, CPPFLAGS, or LDFLAGS, this won't
1317 # make us find the version in the specified directory,
1318 # as the compiler and/or linker will search that other
1319 # directory before it searches the specified directory.
1321 CFLAGS="$CFLAGS -I$krb5_dir/include"
1322 CPPFLAGS="$CPPFLAGS -I$krb5_dir/include"
1323 ac_heimdal_version=`grep heimdal $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*heimdal.*$/HEIMDAL/'`
1324 ac_mit_version=`grep 'Massachusetts Institute of Technology' $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*Massachusetts Institute of Technology.*$/MIT/'`
1325 ac_krb5_version="$ac_heimdal_version$ac_mit_version"
1326 if test "x$ac_krb5_version" = "xHEIMDAL"
1327 KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lasn1 $SSL_LIBS -lroken -lcrypt"
1329 KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lk5crypto -lcom_err"
1331 if test "x$ac_krb5_version" = "xMIT"
1333 AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
1336 AC_PATH_PROG(KRB5_CONFIG, krb5-config)
1337 if test -x "$KRB5_CONFIG"
1339 KRB5_FLAGS=`"$KRB5_CONFIG" --cflags`
1340 KRB5_LIBS=`"$KRB5_CONFIG" --libs`
1341 CFLAGS="$CFLAGS $KRB5_FLAGS"
1342 CPPFLAGS="$CPPFLAGS $KRB5_FLAGS"
1344 # If -lcrypto is in KRB5_FLAGS, we require it to build
1345 # with Heimdal/MIT. We don't want to built with it by
1346 # default, due to annoying license incompatibilities
1347 # between the OpenSSL license and the GPL, so:
1349 # if SSL_LIBS is set to a non-empty string, we
1350 # remove -lcrypto from KRB5_LIBS and replace
1353 # if SSL_LIBS is not set to a non-empty string
1354 # we fail with an appropriate error message.
1356 case "$KRB5_LIBS" in
1358 if test ! -z "$SSL_LIBS"
1360 KRB5_LIBS=`echo $KRB5_LIBS | sed 's/-lcrypto//'`
1361 KRB5_LIBS="$KRB5_LIBS $SSL_LIBS"
1363 AC_MSG_ERROR([Kerberos library requires -lcrypto but --with-ssl not specified])
1367 ac_krb5_version=`"$KRB5_CONFIG" --version | head -n 1 | sed -e 's/^.*heimdal.*$/HEIMDAL/' -e 's/^Kerberos .*$/MIT/'`
1372 # Make sure we have "krb5.h". If we don't, it means we probably
1373 # don't have kerberos, so don't use it.
1375 AC_CHECK_HEADER(krb5.h,,
1377 if test "x$krb5_dir" != "x"
1380 # The user used "--with-krb5=" to specify a directory
1381 # containing kerberos, but we didn't find the header file
1382 # there; that either means they didn't specify the
1383 # right directory or are confused about whether kerberos
1384 # is, in fact, installed. Report the error and give up.
1386 AC_MSG_ERROR([kerberos header not found in directory specified in --with-krb5])
1388 if test "x$want_krb5" = "xyes"
1391 # The user tried to force us to use the library, but we
1392 # couldn't find the header file; report an error.
1394 AC_MSG_ERROR(Header file krb5.h not found.)
1397 # We couldn't find the header file; don't use the
1398 # library, as it's probably not present.
1401 AC_MSG_RESULT(No Heimdal or MIT header found - disabling dissection for some kerberos data in packet decoding)
1406 if test "x$want_krb5" != "xno"
1409 # Well, we at least have the krb5 header file.
1410 # Check whether this is Heimdal or MIT.
1412 AC_MSG_CHECKING(whether the Kerberos library is Heimdal or MIT)
1413 if test "x$ac_krb5_version" = "xHEIMDAL" -o "x$ac_krb5_version" = "xMIT"
1417 # Check whether we have krb5_kt_resolve - and whether
1418 # we need to link with -lresolv when linking with
1419 # the Kerberos library.
1421 AC_MSG_RESULT($ac_krb5_version)
1422 wireshark_save_LIBS="$LIBS"
1423 found_krb5_kt_resolve=no
1424 for extras in "" "-lresolv"
1426 LIBS="$KRB5_LIBS $extras"
1427 if test -z "$extras"
1429 AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve])
1431 AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve (linking with $extras)])
1441 # We found "krb5_kt_resolve()", and required
1442 # the libraries in extras as well.
1446 AC_DEFINE(HAVE_KERBEROS, 1, [Define to use kerberos])
1447 if test "x$ac_krb5_version" = "xHEIMDAL"
1449 AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1, [Define to use heimdal kerberos])
1450 elif test "x$ac_krb5_version" = "xMIT"
1452 AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
1454 found_krb5_kt_resolve=yes
1461 if test "$found_krb5_kt_resolve" = no
1464 # We didn't find "krb5_kt_resolve()" in the
1465 # Kerberos library, even when we tried linking
1466 # with -lresolv; we can't link with kerberos.
1468 if test "x$want_krb5" = "xyes"
1471 # The user tried to force us to use the library,
1472 # but we can't do so; report an error.
1474 AC_MSG_ERROR(Usable $ac_krb5_version not found)
1477 # Restore the versions of CFLAGS and CPPFLAGS
1478 # from before we added the flags for Kerberos.
1480 AC_MSG_RESULT(Usable $ac_krb5_version not found - disabling dissection for some kerberos data in packet decoding)
1481 CFLAGS="$wireshark_save_CFLAGS"
1482 CPPFLAGS="$wireshark_save_CPPFLAGS"
1488 # We can link with Kerberos; see whether krb5.h
1489 # defines KEYTYPE_ARCFOUR_56 (where "defines" means
1490 # "as a #define or as an enum member).
1492 AC_MSG_CHECKING([whether krb5.h defines KEYTYPE_ARCFOUR_56])
1502 printf("%u\n", KEYTYPE_ARCFOUR_56);
1508 AC_DEFINE(HAVE_KEYTYPE_ARCFOUR_56, 1, [Define if krb5.h defines KEYTYPE_ARCFOUR_56])
1514 LIBS="$wireshark_save_LIBS"
1517 # It's not Heimdal or MIT.
1520 if test "x$want_krb5" = "xyes"
1523 # The user tried to force us to use the library,
1524 # but we can't do so; report an error.
1526 AC_MSG_ERROR(Kerberos not found)
1529 # Restore the versions of CFLAGS and CPPFLAGS
1530 # from before we added the flags for Kerberos.
1532 AC_MSG_RESULT(Kerberos not found - disabling dissection for some kerberos data in packet decoding)
1533 CFLAGS="$wireshark_save_CFLAGS"
1534 CPPFLAGS="$wireshark_save_CPPFLAGS"
1541 # The user asked us not to use Kerberos, or they didn't
1542 # say whether they wanted us to use it but we found
1545 # Restore the versions of CFLAGS and CPPFLAGS
1546 # from before we added the flags for Kerberos.
1548 CFLAGS="$wireshark_save_CFLAGS"
1549 CPPFLAGS="$wireshark_save_CPPFLAGS"
1557 dnl Check whether a given format can be used to print 64-bit integers
1559 AC_DEFUN([AC_WIRESHARK_CHECK_64BIT_FORMAT],
1561 AC_MSG_CHECKING([whether %$1x can be used to format 64-bit integers])
1567 #if GTK_MAJOR_VERSION >= 2
1568 #include <glib/gprintf.h>
1576 #if GTK_MAJOR_VERSION >= 2
1577 g_snprintf(strbuf, sizeof strbuf, "%016$1x", t << 32);
1579 snprintf(strbuf, sizeof strbuf, "%016$1x", t << 32);
1581 if (strcmp(strbuf, "0000000100000000") == 0)
1589 AC_DEFINE(G_GINT64_MODIFIER, "$1", [Format modifier for printing 64-bit numbers])
1599 # AC_WIRESHARK_GCC_CFLAGS_CHECK
1601 # $1 : cflags to test
1603 # The macro first determines if the compiler is GCC. Then compile with the
1604 # defined cflags. The defined flags are added to CFLAGS only if the compilation
1607 AC_DEFUN([AC_WIRESHARK_GCC_CFLAGS_CHECK],
1609 AC_MSG_CHECKING(whether we can add $GCC_OPTION to CFLAGS)
1610 if test "x$GCC" != "x"; then
1611 CFLAGS_saved="$CFLAGS"
1612 CFLAGS="$CFLAGS $GCC_OPTION"
1622 CFLAGS="$CFLAGS_saved"