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.
5 dnl This program is free software; you can redistribute it and/or modify
6 dnl it under the terms of the GNU General Public License as published by
7 dnl the Free Software Foundation; either version 2, or (at your option)
10 dnl This program is distributed in the hope that it will be useful,
11 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
12 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 dnl GNU General Public License for more details.
15 dnl You should have received a copy of the GNU General Public License
16 dnl along with this program; if not, write to the Free Software
17 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
20 dnl As a special exception, the Free Software Foundation gives unlimited
21 dnl permission to copy, distribute and modify the configure scripts that
22 dnl are the output of Autoconf. You need not follow the terms of the GNU
23 dnl General Public License when using or distributing such scripts, even
24 dnl though portions of the text of Autoconf appear in them. The GNU
25 dnl General Public License (GPL) does govern all other use of the material
26 dnl that constitutes the Autoconf program.
28 dnl Certain portions of the Autoconf source text are designed to be copied
29 dnl (in certain cases, depending on the input) into the output of
30 dnl Autoconf. We call these the "data" portions. The rest of the Autoconf
31 dnl source text consists of comments plus executable code that decides which
32 dnl of the data portions to output in any given case. We call these
33 dnl comments and executable code the "non-data" portions. Autoconf never
34 dnl copies any of the non-data portions into its output.
36 dnl This special exception to the GPL applies to versions of Autoconf
37 dnl released by the Free Software Foundation. When you make and
38 dnl distribute a modified version of Autoconf, you may extend this special
39 dnl exception to the GPL to apply to your modified version as well, *unless*
40 dnl your modified version has the potential to copy into its output some
41 dnl of the text that was the non-data portion of the version that you started
42 dnl with. (In other words, unless your change moves or copies text from
43 dnl the non-data portions to the data portions.) If your modification has
44 dnl such potential, you must delete any notice of this special exception
45 dnl to the GPL from your modified version.
47 dnl Written by David MacKenzie, with help from
48 dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor,
49 dnl Roland McGrath, Noah Friedman, david d zuhn, and many others.
52 # AC_WIRESHARK_ADD_DASH_L
54 # Add to the variable specified as the first argument a "-L" flag for the
55 # directory specified as the second argument, and, on Solaris, add a
56 # "-R" flag for it as well.
58 # XXX - IRIX, and other OSes, may require some flag equivalent to
61 AC_DEFUN([AC_WIRESHARK_ADD_DASH_L],
71 # AC_WIRESHARK_PUSH_FLAGS
73 # Push our flags to CFLAGS/etc.
75 AC_DEFUN([AC_WIRESHARK_PUSH_FLAGS],
77 ac_ws_CPPLAGS_saved="$CPPFLAGS"
78 ac_ws_CFLAGS_saved="$CFLAGS"
79 ac_ws_CXXFLAGS_saved="$CXXFLAGS"
80 ac_ws_LDFLAGS_saved="$LDFLAGS"
81 CPPFLAGS="$WS_CPPFLAGS $CPPFLAGS"
82 CFLAGS="$WS_CFLAGS $CFLAGS"
83 CXXFLAGS="$WS_CXXFLAGS $CXXFLAGS"
84 LDFLAGS="$WS_LDFLAGS $LDFLAGS"
88 # AC_WIRESHARK_POP_FLAGS
90 # Restore user build flags.
92 AC_DEFUN([AC_WIRESHARK_POP_FLAGS],
94 CPPFLAGS="$ac_ws_CPPLAGS_saved"
95 CFLAGS="$ac_ws_CFLAGS_saved"
96 CXXFLAGS="$ac_ws_CXXFLAGS_saved"
97 LDFLAGS="$ac_ws_LDFLAGS_saved"
101 # AC_WIRESHARK_TIMEZONE_ABBREV
104 AC_DEFUN([AC_WIRESHARK_TIMEZONE_ABBREV],
106 AC_CACHE_CHECK([for tm_zone in struct tm],
107 ac_cv_wireshark_have_tm_zone,
111 [struct tm t; t.tm_zone;],
112 ac_cv_wireshark_have_tm_zone=yes,
113 ac_cv_wireshark_have_tm_zone=no)
115 if test $ac_cv_wireshark_have_tm_zone = yes; then
116 AC_DEFINE(HAVE_TM_ZONE, 1, [Define if tm_zone field exists in struct tm])
118 AC_CACHE_CHECK([for tzname],
119 ac_cv_wireshark_have_tzname,
124 [printf("%s", tzname[0]);],
125 ac_cv_wireshark_have_tzname=yes,
126 ac_cv_wireshark_have_tzname=no)
128 if test $ac_cv_wireshark_have_tzname = yes; then
129 AC_DEFINE(HAVE_TZNAME, 1, [Define if tzname array exists])
136 # AC_WIRESHARK_STRUCT_ST_FLAGS
138 dnl AC_STRUCT_ST_BLKSIZE extracted from the file in question,
139 dnl "acspecific.m4" in GNU Autoconf 2.12, and turned into
140 dnl AC_WIRESHARK_STRUCT_ST_FLAGS, which checks if "struct stat"
141 dnl has the 4.4BSD "st_flags" member, and defines HAVE_ST_FLAGS; that's
142 dnl what's in this file.
143 dnl Done by Guy Harris <guy@alum.mit.edu> on 2012-06-02.
145 dnl ### Checks for structure members
147 AC_DEFUN([AC_WIRESHARK_STRUCT_ST_FLAGS],
148 [AC_CACHE_CHECK([for st_flags in struct stat], ac_cv_wireshark_struct_st_flags,
149 [AC_TRY_COMPILE([#include <sys/stat.h>], [struct stat s; s.st_flags;],
150 ac_cv_wireshark_struct_st_flags=yes, ac_cv_wireshark_struct_st_flags=no)])
151 if test $ac_cv_wireshark_struct_st_flags = yes; then
152 AC_DEFINE(HAVE_ST_FLAGS, 1, [Define if st_flags field exists in struct stat])
158 # AC_WIRESHARK_STRUCT_SA_LEN
160 dnl AC_STRUCT_ST_BLKSIZE extracted from the file in question,
161 dnl "acspecific.m4" in GNU Autoconf 2.12, and turned into
162 dnl AC_WIRESHARK_STRUCT_SA_LEN, which checks if "struct sockaddr"
163 dnl has the 4.4BSD "sa_len" member, and defines HAVE_SA_LEN; that's
164 dnl what's in this file.
165 dnl Done by Guy Harris <guy@alum.mit.edu> on 1998-11-14.
167 dnl ### Checks for structure members
169 AC_DEFUN([AC_WIRESHARK_STRUCT_SA_LEN],
170 [AC_CACHE_CHECK([for sa_len in struct sockaddr], ac_cv_wireshark_struct_sa_len,
171 [AC_TRY_COMPILE([#include <sys/types.h>
172 #include <sys/socket.h>], [struct sockaddr s; s.sa_len;],
173 ac_cv_wireshark_struct_sa_len=yes, ac_cv_wireshark_struct_sa_len=no)])
174 if test $ac_cv_wireshark_struct_sa_len = yes; then
175 AC_DEFINE(HAVE_SA_LEN, 1, [Define if sa_len field exists in struct sockaddr])
181 # AC_WIRESHARK_GETADDRINFO_LIB_CHECK
183 # Checks whether we have "getaddrinfo()" and whether we need "-lnsl" to get it.
184 AC_DEFUN([AC_WIRESHARK_GETADDRINFO_LIB_CHECK],
186 AC_CHECK_FUNCS(getaddrinfo, ,
187 AC_CHECK_LIB(nsl, getaddrinfo,
190 AC_DEFINE(HAVE_GETADDRINFO, 1, [Defined if we have getaddrinfo])
196 # AC_WIRESHARK_GETHOSTBY_LIB_CHECK
198 # Checks whether we need "-lnsl" to get "gethostby*()", which we use
201 # Adapted from stuff in the AC_PATH_XTRA macro in "acspecific.m4" in
202 # GNU Autoconf 2.13; the comment came from there.
203 # Done by Guy Harris <guy@alum.mit.edu> on 2000-01-14.
205 AC_DEFUN([AC_WIRESHARK_GETHOSTBY_LIB_CHECK],
207 # msh@cis.ufl.edu says -lnsl (and -lsocket) are needed for his 386/AT,
208 # to get the SysV transport functions.
209 # chad@anasazi.com says the Pyramid MIS-ES running DC/OSx (SVR4)
211 # The nsl library prevents programs from opening the X display
212 # on Irix 5.2, according to dickey@clark.net.
213 AC_CHECK_FUNCS(gethostbyname, ,
214 AC_CHECK_LIB(nsl, gethostbyname,
217 AC_DEFINE(HAVE_GETHOSTBYNAME, 1, [Defined if we have gethostbyname])
223 # AC_WIRESHARK_SOCKET_LIB_CHECK
225 # Checks whether we need "-lsocket" to get "socket()", which is used
226 # by libpcap on some platforms - and, in effect, "gethostbyname()" or
227 # "getaddrinfo()" on most if not all platforms (so that it can use NIS or
228 # DNS or... to look up host names).
230 # Adapted from stuff in the AC_PATH_XTRA macro in "acspecific.m4" in
231 # GNU Autoconf 2.13; the comment came from there.
232 # Done by Guy Harris <guy@alum.mit.edu> on 2000-01-14.
234 # We use "connect" because that's what AC_PATH_XTRA did.
236 AC_DEFUN([AC_WIRESHARK_SOCKET_LIB_CHECK],
238 # lieder@skyler.mavd.honeywell.com says without -lsocket,
239 # socket/setsockopt and other routines are undefined under SCO ODT
240 # 2.0. But -lsocket is broken on IRIX 5.2 (and is not necessary
241 # on later versions), says simon@lia.di.epfl.ch: it contains
242 # gethostby* variants that don't use the nameserver (or something).
243 # -lsocket must be given before -lnsl if both are needed.
244 # We assume that if connect needs -lnsl, so does gethostbyname.
245 AC_CHECK_FUNC(connect, ,
246 AC_CHECK_LIB(socket, connect, SOCKET_LIBS="-lsocket",
247 AC_MSG_ERROR(Function 'socket' not found.), $NSL_LIBS))
248 AC_SUBST(SOCKET_LIBS)
252 # AC_WIRESHARK_BREAKLOOP_TRY_LINK
254 AC_DEFUN([AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK],
270 ws_breakloop_compiled=yes
273 ws_breakloop_compiled=no
280 # AC_WIRESHARK_PCAP_CHECK
282 AC_DEFUN([AC_WIRESHARK_PCAP_CHECK],
284 AC_WIRESHARK_PUSH_FLAGS
286 if test -z "$pcap_dir"
289 # XXX need to set a var AC_CHECK_HEADER(pcap.h,,)
292 # The user didn't specify a directory in which libpcap resides.
293 # First, look for a pcap-config script.
295 AC_PATH_TOOL(PCAP_CONFIG, pcap-config)
297 if test -n "$PCAP_CONFIG" ; then
301 # Now check whether it's the libpcap 1.0 version, which
302 # put a space after "-L" - on some platforms, that doesn't
305 AC_MSG_CHECKING(for broken pcap-config)
306 case "`\"$PCAP_CONFIG\" --libs`" in
310 # Space after -L. Pretend pcap-config doesn't exist.
324 if test -n "$PCAP_CONFIG" ; then
326 # Found it, and it's usable; use it to get the include flags
329 CPPFLAGS="$CPPFLAGS `\"$PCAP_CONFIG\" --cflags`"
332 # Didn't find it; we have to look for libpcap ourselves.
333 # We assume that the current library search path will work,
334 # but we may have to look for the header in a "pcap"
335 # subdirectory of "/usr/include" or "/usr/local/include",
336 # as some systems apparently put "pcap.h" in a "pcap"
337 # subdirectory, and we also check "$prefix/include" - and
338 # "$prefix/include/pcap", in case $prefix is set to
339 # "/usr/include" or "/usr/local/include".
341 # XXX - should we just add "$prefix/include" to the include
342 # search path and "$prefix/lib" to the library search path?
344 AC_MSG_CHECKING(for extraneous pcap header directories)
346 pcap_dir_list="/usr/include/pcap $prefix/include/pcap $prefix/include"
347 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
348 pcap_dir_list="$pcap_dir_list /usr/local/include/pcap"
350 for pcap_dir in $pcap_dir_list
352 if test -d $pcap_dir ; then
353 if test x$pcap_dir != x/usr/include -a x$pcap_dir != x/usr/local/include ; then
354 CPPFLAGS="$CPPFLAGS -I$pcap_dir"
356 found_pcap_dir=" $found_pcap_dir -I$pcap_dir"
361 if test "$found_pcap_dir" != "" ; then
362 AC_MSG_RESULT(found --$found_pcap_dir added to CFLAGS)
364 AC_MSG_RESULT(not found)
369 # The user specified a directory in which libpcap resides,
370 # so add the "include" subdirectory of that directory to
371 # the include file search path and the "lib" subdirectory
372 # of that directory to the library search path.
374 # XXX - if there's also a libpcap in a directory that's
375 # already in CPPFLAGS or LDFLAGS, this won't make us find
376 # the version in the specified directory, as the compiler
377 # and/or linker will search that other directory before it
378 # searches the specified directory.
380 CPPFLAGS="$CPPFLAGS -I$pcap_dir/include"
381 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $pcap_dir/lib)
385 AC_CHECK_HEADER(pcap.h,,
386 AC_MSG_ERROR([[Header file pcap.h not found; if you installed libpcap
387 from source, did you also do \"make install-incl\", and if you installed a
388 binary package of libpcap, is there also a developer's package of libpcap,
389 and did you also install that package?]]))
391 if test -n "$PCAP_CONFIG" ; then
393 # We have pcap-config; we assume that means we have libpcap
394 # installed and that pcap-config will tell us whatever
395 # libraries libpcap needs.
397 if test x$enable_static = xyes; then
398 PCAP_LIBS="`\"$PCAP_CONFIG\" --libs --static`"
400 PCAP_LIBS="`\"$PCAP_CONFIG\" --libs`"
402 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
405 # Check to see if we find "pcap_open_live" in "-lpcap".
406 # Also check for various additional libraries that libpcap might
409 AC_CHECK_LIB(pcap, pcap_open_live,
412 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
414 ac_wireshark_extras_found=no
416 for extras in "-lcfg -lodm" "-lpfring"
418 AC_MSG_CHECKING([for pcap_open_live in -lpcap with $extras])
419 LIBS="-lpcap $extras"
421 # XXX - can't we use AC_CHECK_LIB here?
428 pcap_open_live(NULL, 0, 0, 0, NULL);
431 ac_wireshark_extras_found=yes
433 PCAP_LIBS="-lpcap $extras"
434 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
439 if test x$ac_wireshark_extras_found = xyes
444 if test x$ac_wireshark_extras_found = xno
446 AC_MSG_ERROR([Can't link with library libpcap.])
449 ], $SOCKET_LIBS $NSL_LIBS)
454 # Check whether various variables and functions are defined by
458 LIBS="$PCAP_LIBS $SOCKET_LIBS $NSL_LIBS $LIBS"
459 AC_CHECK_FUNCS(pcap_open_dead pcap_freecode)
461 # pcap_breakloop may be present in the library but not declared
462 # in the pcap.h header file. If it's not declared in the header
463 # file, attempts to use it will get warnings, and, if we're
464 # building with warnings treated as errors, that warning will
465 # cause compilation to fail.
467 # We are therefore first testing whether the function is present
468 # and then, if we're compiling with warnings as errors, testing
469 # whether it is usable. It is usable if it compiles without
470 # a -Wimplicit warning (the "compile with warnings as errors"
471 # option requires GCC). If it is not usable, we fail and tell
472 # the user that the pcap.h header needs to be updated.
474 # Ceteris paribus, this should only happen with Mac OS X 10.3[.x] which
475 # can have an up-to-date pcap library without the corresponding pcap
478 # However, it might also happen on some others OSes with some erroneous
479 # system manipulations where multiple versions of libpcap might co-exist
480 # e.g. hand made symbolic link from libpcap.so -> libpcap.so.0.8 but
481 # having the pcap header version 0.7.
483 AC_MSG_CHECKING([whether pcap_breakloop is present])
484 ac_CFLAGS_saved="$CFLAGS"
485 AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK
486 if test "x$ws_breakloop_compiled" = "xyes"; then
488 AC_DEFINE(HAVE_PCAP_BREAKLOOP, 1, [Define if pcap_breakloop is known])
489 if test "x$with_warnings_as_errors" = "xyes"; then
490 AC_MSG_CHECKING([whether pcap_breakloop is usable])
491 CFLAGS="$CFLAGS -Werror -Wimplicit"
492 AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK
493 if test "x$ws_breakloop_compiled" = "xyes"; then
498 [Your pcap library is more recent than your pcap header.
499 As you are building with compiler warnings treated as errors, Wireshark
500 won't be able to use functions not declared in that header.
501 If you wish to build with compiler warnings treated as errors, You should
502 install a newer version of the header file.])
504 CFLAGS="$ac_CFLAGS_saved"
511 # Later versions of Mac OS X 10.3[.x] ship a pcap.h that
512 # doesn't define pcap_if_t but ship an 0.8[.x] libpcap,
513 # so the library has "pcap_findalldevs()", but pcap.h
514 # doesn't define "pcap_if_t" so you can't actually *use*
515 # "pcap_findalldevs()".
517 # That even appears to be true of systems shipped with
518 # 10.3.4, so it doesn't appear only to be a case of
519 # Software Update not updating header files.
521 # (You can work around this by installing the 0.8 header
524 AC_CACHE_CHECK([whether pcap_findalldevs is present and usable],
525 [ac_cv_func_pcap_findalldevs],
534 pcap_if_t *devpointer;
537 pcap_findalldevs(&devpointer, errbuf);
542 ac_cv_func_pcap_findalldevs=yes
545 ac_cv_func_pcap_findalldevs=no
549 # Don't check for other new routines that showed up after
550 # "pcap_findalldevs()" if we don't have a usable
551 # "pcap_findalldevs()", so we don't end up using them if the
552 # "pcap.h" is crufty and old and doesn't declare them.
554 if test $ac_cv_func_pcap_findalldevs = "yes" ; then
555 AC_DEFINE(HAVE_PCAP_FINDALLDEVS, 1,
556 [Define to 1 if you have the `pcap_findalldevs' function and a pcap.h that declares pcap_if_t.])
557 AC_CHECK_FUNCS(pcap_datalink_val_to_name pcap_datalink_name_to_val)
558 AC_CHECK_FUNCS(pcap_datalink_val_to_description)
559 AC_CHECK_FUNCS(pcap_list_datalinks pcap_set_datalink pcap_lib_version)
560 AC_CHECK_FUNCS(pcap_get_selectable_fd pcap_free_datalinks)
561 AC_CHECK_FUNC(pcap_create,
563 AC_DEFINE(HAVE_PCAP_CREATE, 1,
564 [Define to 1 if you have the `pcap_create' function.])
565 AC_DEFINE(CAN_SET_CAPTURE_BUFFER_SIZE, 1,
566 [Define to 1 if the capture buffer size can be set.])
568 AC_CHECK_FUNCS(bpf_image pcap_set_tstamp_precision)
571 AC_WIRESHARK_POP_FLAGS
575 AC_DEFUN([AC_WIRESHARK_PCAP_REMOTE_CHECK],
578 LIBS="$PCAP_LIBS $SOCKET_LIBS $NSL_LIBS $LIBS"
579 AC_DEFINE(HAVE_REMOTE, 1, [Define to 1 to enable remote
580 capturing feature in WinPcap library])
581 AC_CHECK_FUNCS(pcap_open)
582 if test $ac_cv_func_pcap_open = "yes" ; then
583 AC_DEFINE(HAVE_PCAP_REMOTE, 1,
584 [Define to 1 if you have WinPcap remote capturing support and prefer to use these new API features.])
586 AC_CHECK_FUNCS(pcap_setsampling)
591 # AC_WIRESHARK_ZLIB_CHECK
593 AC_DEFUN([AC_WIRESHARK_ZLIB_CHECK],
595 AC_WIRESHARK_PUSH_FLAGS
597 if test "x$zlib_dir" != "x"
600 # The user specified a directory in which zlib resides,
601 # so add the "include" subdirectory of that directory to
602 # the include file search path and the "lib" subdirectory
603 # of that directory to the library search path.
605 # XXX - if there's also a zlib in a directory that's
606 # already in CPPFLAGS or LDFLAGS, this won't make us find
607 # the version in the specified directory, as the compiler
608 # and/or linker will search that other directory before it
609 # searches the specified directory.
611 CPPFLAGS="$CPPFLAGS -I$zlib_dir/include"
612 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $zlib_dir/lib)
616 # Make sure we have "zlib.h". If we don't, it means we probably
617 # don't have zlib, so don't use it.
619 AC_CHECK_HEADER(zlib.h,,
621 if test "x$zlib_dir" != "x"
624 # The user used "--with-zlib=" to specify a directory
625 # containing zlib, but we didn't find the header file
626 # there; that either means they didn't specify the
627 # right directory or are confused about whether zlib
628 # is, in fact, installed. Report the error and give up.
630 AC_MSG_ERROR([zlib header not found in directory specified in --with-zlib])
632 if test "x$want_zlib" = "xyes"
635 # The user tried to force us to use the library, but we
636 # couldn't find the header file; report an error.
638 AC_MSG_ERROR(Header file zlib.h not found.)
641 # We couldn't find the header file; don't use the
642 # library, as it's probably not present.
649 if test "x$want_zlib" != "xno"
652 # Well, we at least have the zlib header file.
653 # We link with zlib to support uncompression of
654 # gzipped network traffic, e.g. in an HTTP request
657 if test "x$zlib_dir" != "x"
659 WS_CPPFLAGS="$WS_CPPFLAGS -I$zlib_dir/include"
660 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, $zlib_dir/lib)
663 AC_DEFINE(HAVE_LIBZ, 1, [Define to use libz library])
665 # Check for "inflatePrime()" in zlib, which we need
666 # in order to read compressed capture files.
668 AC_CHECK_FUNCS(inflatePrime)
670 if test "x$ac_cv_func_inflatePrime" = "xyes" ; then
672 # Now check for "inflatePrime()" in zlib when
673 # linking with the linker flags for GTK+
674 # applications; people often grab XFree86 source
675 # and build and install it on their systems,
676 # and they appear sometimes to misconfigure
677 # XFree86 so that, even on systems with zlib,
678 # it assumes there is no zlib, so the XFree86
679 # build process builds and installs its
680 # own zlib in the X11 library directory.
682 # The zlib in at least some versions of XFree86
683 # is an older version that may lack "inflatePrime()",
684 # and that's the zlib with which Wireshark gets
685 # linked, so the build of Wireshark fails.
687 AC_MSG_CHECKING([for inflatePrime missing when linking with X11])
688 AC_TRY_LINK_FUNC(inflatePrime, AC_MSG_RESULT(no),
691 AC_MSG_ERROR(old zlib found when linking with X11 - get rid of old zlib.)
696 AC_WIRESHARK_POP_FLAGS
700 # AC_WIRESHARK_LIBLUA_CHECK
702 # Sets $have_lua to yes or no.
703 # If it's yes, it also sets $LUA_CFLAGS and $LUA_LIBS.
704 AC_DEFUN([AC_WIRESHARK_LIBLUA_CHECK],[
706 AC_WIRESHARK_PUSH_FLAGS
708 if test "x$want_lua_dir" = "x"
710 # The user didn't tell us where to find Lua. Let's go look for it.
712 # First, try the standard (pkg-config) way.
713 # Unfortunately Lua's pkg-config file isn't standardly named.
714 # Some distributions allow installation of multiple versions of
715 # Lua at the same time. On such systems each version has its
718 # We use a for loop instead of giving all the package names to
719 # PKG_CHECK_MODULES because doing the latter doesn't appear to
720 # work reliably (some package names are not searched for).
721 for pkg in "lua < 5.3" lua5.2 lua-5.2 lua52 lua5.1 lua-5.1 lua51 lua5.0 lua-5.0 lua50
723 PKG_CHECK_MODULES(LUA, $pkg, [have_lua=yes], [true])
725 if test "x$have_lua" = "xyes"
732 if test "x$have_lua" != "xyes"
734 # We don't have pkg-config or the user specified the path to
735 # Lua (in $want_lua_dir).
736 # Let's look for the header file.
738 AC_MSG_CHECKING(for the location of lua.h)
739 if test "x$want_lua_dir" = "x"
741 # The user didn't tell us where to look so we'll look in some
742 # standard locations.
743 want_lua_dir="/usr /usr/local $prefix"
745 for dir in $want_lua_dir
747 if test -r "$dir/include/lua.h"
749 header_dir="$dir/include"
754 for ver in 5.2 52 5.1 51 5.0 50
756 if test -r "$dir/include/lua$ver/lua.h"
758 header_dir="$dir/include/lua$ver"
765 if test "x$header_dir" = "x"
768 AC_MSG_RESULT(not found)
770 AC_MSG_RESULT($header_dir)
772 AC_MSG_CHECKING(the Lua version)
773 lua_ver=`$AWK AS_ESCAPE('/LUA_VERSION_NUM/ { print $NF; }' $header_dir/lua.h | sed 's/0/./')`
775 if test "x$lua_ver" = "x5.3"
777 # Wireshark doesn't compile with Lua 5.3 today
778 AC_MSG_RESULT($lua_ver - disabling Lua support)
781 AC_MSG_RESULT($lua_ver)
783 CPPFLAGS="$CPPFLAGS -I$header_dir"
784 AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h, ,
790 if test "x$have_lua" = "x"
793 LUA_CFLAGS="-I$header_dir"
795 # We have the header files and they work. Now let's check if we
796 # have the library and it works.
798 # XXX - if there's also a liblua in a directory that's
799 # already in CPPFLAGS or LDFLAGS, this won't make us find
800 # the version in the specified directory, as the compiler
801 # and/or linker will search that other directory before it
802 # searches the specified directory.
805 wireshark_save_LIBS="$LIBS"
806 LIBS="$LIBS -L$lua_dir/lib"
807 AC_SEARCH_LIBS(luaL_openlibs, [lua-${lua_ver} lua${lua_ver} lua],
809 LUA_LIBS="-L$lua_dir/lib $ac_cv_search_luaL_openlibs -lm"
810 LIBS="$wireshark_save_LIBS"
813 LIBS="$wireshark_save_LIBS"
820 AC_WIRESHARK_POP_FLAGS
824 # AC_WIRESHARK_LIBPORTAUDIO_CHECK
826 AC_DEFUN([AC_WIRESHARK_LIBPORTAUDIO_CHECK],[
828 AC_WIRESHARK_PUSH_FLAGS
829 wireshark_save_LIBS="$LIBS"
831 if test "x$portaudio_dir" != "x"
834 # The user specified a directory in which libportaudio
835 # resides, so add the "include" subdirectory of that directory to
836 # the include file search path and the "lib" subdirectory
837 # of that directory to the library search path.
839 # XXX - if there's also a libportaudio in a directory that's
840 # already in CPPFLAGS or LDFLAGS, this won't make us find
841 # the version in the specified directory, as the compiler
842 # and/or linker will search that other directory before it
843 # searches the specified directory.
845 CPPFLAGS="$CPPFLAGS -I$portaudio_dir/include"
846 LDFLAGS="$LDFLAGS -L$portaudio_dir/lib"
848 LIBS="$LIBS -lportaudio"
851 # Make sure we have "portaudio.h". If we don't, it means we probably
852 # don't have libportaudio, so don't use it.
854 AC_CHECK_HEADERS(portaudio.h,,
856 if test "x$portaudio_dir" != "x"
859 # The user used "--with-portaudio=" to specify a directory
860 # containing libportaudio, but we didn't find the header file
861 # there; that either means they didn't specify the
862 # right directory or are confused about whether libportaudio
863 # is, in fact, installed. Report the error and give up.
865 AC_MSG_ERROR([libportaudio header not found in directory specified in --with-portaudio])
867 if test "x$want_portaudio" = "xyes"
870 # The user tried to force us to use the library, but we
871 # couldn't find the header file; report an error.
873 AC_MSG_ERROR(Header file portaudio.h not found.)
876 # We couldn't find the header file; don't use the
877 # library, as it's probably not present.
885 # Check whether we have the right version of portaudio
887 if test "x$want_portaudio" != "xno"
889 AC_CHECK_TYPE(PortAudioStream,
890 AC_DEFINE(PORTAUDIO_API_1, 1, [Define if we are using version of of the Portaudio library API]),
892 [#include <portaudio.h>])
895 if test "x$want_portaudio" != "xno"
898 # Well, we at least have the portaudio header file.
900 # let's check if the libs are there
903 PORTAUDIO_INCLUDES=""
905 AC_CHECK_LIB(portaudio, Pa_Initialize,
907 if test "x$portaudio_dir" != "x"
910 # Put the "-I" and "-L" flags for portaudio
911 # into PORTAUDIO_INCLUDES and PORTAUDIO_LIBS,
914 PORTAUDIO_LIBS="-L$portaudio_dir/lib -lportaudio"
915 PORTAUDIO_INCLUDES="-I$portaudio_dir/include"
917 PORTAUDIO_LIBS="-lportaudio"
919 AC_DEFINE(HAVE_LIBPORTAUDIO, 1, [Define to use libportaudio library])
922 # User requested --with-portaudio but it isn't available
923 if test "x$want_portaudio" = "xyes"
925 AC_MSG_ERROR(Linking with libportaudio failed.)
929 AC_SUBST(PORTAUDIO_LIBS)
930 AC_SUBST(PORTAUDIO_INCLUDES)
934 LIBS="$wireshark_save_LIBS"
935 AC_WIRESHARK_POP_FLAGS
939 # AC_WIRESHARK_RPM_CHECK
940 # Looks for the rpm program, and checks to see if we can redefine "_topdir".
942 AC_DEFUN([AC_WIRESHARK_RPM_CHECK],
944 AC_CHECK_PROG(ac_cv_wireshark_have_rpm, rpm, "yes", "no")
945 if test "x$ac_cv_wireshark_have_rpm" = "xyes"; then
946 rpm --define '_topdir /tmp' > /dev/null 2>&1
947 AC_MSG_CHECKING(to see if we can redefine _topdir)
948 if test $? -eq 0 ; then
952 AC_MSG_RESULT(no. You'll have to build packages manually.)
959 # AC_WIRESHARK_GNU_SED_CHECK
960 # Checks if GNU sed is the first sed in PATH.
962 AC_DEFUN([AC_WIRESHARK_GNU_SED_CHECK],
964 AC_MSG_CHECKING(for GNU sed as first sed in PATH)
965 if ( sh -c "sed --version" </dev/null 2> /dev/null | grep "GNU sed" 2>&1 > /dev/null ) ; then
975 # AC_WIRESHARK_C_ARES_CHECK
977 AC_DEFUN([AC_WIRESHARK_C_ARES_CHECK],
979 want_c_ares=defaultyes
981 if test "x$want_c_ares" = "xdefaultyes"; then
983 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
985 if test -d "$withval"; then
986 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, ${withval}/lib)
991 if test "x$want_c_ares" = "xyes"; then
992 AC_CHECK_LIB(cares, ares_init,
995 AC_DEFINE(HAVE_C_ARES, 1, [Define to use c-ares library])
997 ],, $SOCKET_LIBS $NSL_LIBS
1000 AC_MSG_RESULT(not required)
1006 # AC_WIRESHARK_ADNS_CHECK
1008 AC_DEFUN([AC_WIRESHARK_ADNS_CHECK],
1010 want_adns=defaultyes
1012 if test "x$want_adns" = "xdefaultyes"; then
1014 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
1016 if test -d "$withval"; then
1017 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, ${withval}/lib)
1022 if test "x$want_adns" = "xyes"; then
1023 AC_CHECK_LIB(adns, adns_init,
1026 AC_DEFINE(HAVE_GNU_ADNS, 1, [Define to use GNU ADNS library])
1028 ],, $SOCKET_LIBS $NSL_LIBS
1031 AC_MSG_RESULT(not required)
1037 # AC_WIRESHARK_LIBCAP_CHECK
1039 AC_DEFUN([AC_WIRESHARK_LIBCAP_CHECK],
1041 want_libcap=defaultyes
1043 if test "x$want_libcap" = "xdefaultyes"; then
1045 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
1047 if test -d "$withval"; then
1048 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, ${withval}/lib)
1053 if test "x$want_libcap" = "xyes"; then
1054 AC_CHECK_LIB(cap, cap_set_flag,
1057 AC_DEFINE(HAVE_LIBCAP, 1, [Define to use the libcap library])
1058 have_good_libcap=yes
1062 AC_MSG_RESULT(not required)
1068 # AC_WIRESHARK_KRB5_CHECK
1070 AC_DEFUN([AC_WIRESHARK_KRB5_CHECK],
1072 AC_WIRESHARK_PUSH_FLAGS
1073 wireshark_save_LIBS="$LIBS"
1075 if test "x$krb5_dir" != "x"
1078 # The user specified a directory in which kerberos resides,
1079 # so add the "include" subdirectory of that directory to
1080 # the include file search path and the "lib" subdirectory
1081 # of that directory to the library search path.
1083 # XXX - if there's also a kerberos in a directory that's
1084 # already in CPPFLAGS or LDFLAGS, this won't make us find
1085 # the version in the specified directory, as the compiler
1086 # and/or linker will search that other directory before it
1087 # searches the specified directory.
1089 KRB5_CFLAGS="-I$krb5_dir/include"
1090 ac_heimdal_version=`grep heimdal $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*heimdal.*$/HEIMDAL/'`
1091 # MIT Kerberos moved krb5.h to krb5/krb5.h starting with release 1.5
1092 ac_mit_version_olddir=`grep 'Massachusetts' $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*Massachusetts.*$/MIT/'`
1093 ac_mit_version_newdir=`grep 'Massachusetts' $krb5_dir/include/krb5/krb5.h | head -n 1 | sed 's/^.*Massachusetts.*$/MIT/'`
1094 ac_krb5_version="$ac_heimdal_version$ac_mit_version_olddir$ac_mit_version_newdir"
1095 if test "x$ac_krb5_version" = "xHEIMDAL"
1097 KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lasn1 $SSL_LIBS -lroken -lcrypt"
1099 KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lk5crypto -lcom_err"
1101 if test "x$ac_krb5_version" = "xMIT"
1103 AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
1106 AC_PATH_TOOL(KRB5_CONFIG, krb5-config)
1107 if test -x "$KRB5_CONFIG"
1109 KRB5_CFLAGS=`"$KRB5_CONFIG" --cflags`
1110 KRB5_LIBS=`"$KRB5_CONFIG" --libs`
1112 # If -lcrypto is in KRB5_FLAGS, we require it to build
1113 # with Heimdal/MIT. We don't want to built with it by
1114 # default, due to annoying license incompatibilities
1115 # between the OpenSSL license and the GPL, so:
1117 # if SSL_LIBS is set to a non-empty string, we
1118 # remove -lcrypto from KRB5_LIBS and replace
1121 # if SSL_LIBS is not set to a non-empty string
1122 # we fail with an appropriate error message.
1124 case "$KRB5_LIBS" in
1126 if test ! -z "$SSL_LIBS"
1128 KRB5_LIBS=`echo $KRB5_LIBS | sed 's/-lcrypto//'`
1129 KRB5_LIBS="$KRB5_LIBS $SSL_LIBS"
1131 AC_MSG_ERROR([Kerberos library requires -lcrypto, so you must specify --with-ssl])
1135 ac_krb5_version=`"$KRB5_CONFIG" --version | head -n 1 | sed -e 's/^.*heimdal.*$/HEIMDAL/' -e 's/^Kerberos .*$/MIT/' -e 's/^Solaris Kerberos .*$/MIT/'`
1139 CPPFLAGS="$CPPFLAGS $KRB5_CFLAGS"
1142 # Make sure we have "krb5.h". If we don't, it means we probably
1143 # don't have kerberos, so don't use it.
1145 AC_CHECK_HEADER(krb5.h,,
1147 if test "x$krb5_dir" != "x"
1150 # The user used "--with-krb5=" to specify a directory
1151 # containing kerberos, but we didn't find the header file
1152 # there; that either means they didn't specify the
1153 # right directory or are confused about whether kerberos
1154 # is, in fact, installed. Report the error and give up.
1156 AC_MSG_ERROR([kerberos header not found in directory specified in --with-krb5])
1158 if test "x$want_krb5" = "xyes"
1161 # The user tried to force us to use the library, but we
1162 # couldn't find the header file; report an error.
1164 AC_MSG_ERROR(Header file krb5.h not found.)
1167 # We couldn't find the header file; don't use the
1168 # library, as it's probably not present.
1173 AC_MSG_RESULT(No Heimdal or MIT header found - disabling dissection for some kerberos data in packet decoding)
1178 if test "x$want_krb5" != "xno"
1181 # Well, we at least have the krb5 header file.
1182 # Check whether this is Heimdal or MIT.
1184 AC_MSG_CHECKING(whether the Kerberos library is Heimdal or MIT)
1185 if test "x$ac_krb5_version" = "xHEIMDAL" -o "x$ac_krb5_version" = "xMIT"
1189 # Check whether we have krb5_kt_resolve - and whether
1190 # we need to link with -lresolv when linking with
1191 # the Kerberos library.
1193 AC_MSG_RESULT($ac_krb5_version)
1194 found_krb5_kt_resolve=no
1195 for extras in "" "-lresolv"
1197 LIBS="$KRB5_LIBS $extras"
1198 if test -z "$extras"
1200 AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve])
1202 AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve (linking with $extras)])
1212 # We found "krb5_kt_resolve()", and required
1213 # the libraries in extras as well.
1217 AC_DEFINE(HAVE_KERBEROS, 1, [Define to use kerberos])
1218 if test "x$ac_krb5_version" = "xHEIMDAL"
1220 AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1, [Define to use heimdal kerberos])
1221 elif test "x$ac_krb5_version" = "xMIT"
1223 AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
1225 found_krb5_kt_resolve=yes
1232 if test "$found_krb5_kt_resolve" = no
1235 # We didn't find "krb5_kt_resolve()" in the
1236 # Kerberos library, even when we tried linking
1237 # with -lresolv; we can't link with kerberos.
1239 if test "x$want_krb5" = "xyes"
1242 # The user tried to force us to use the library,
1243 # but we can't do so; report an error.
1245 AC_MSG_ERROR(Usable $ac_krb5_version not found)
1250 AC_MSG_RESULT(Usable $ac_krb5_version not found - disabling dissection for some kerberos data in packet decoding)
1257 # We can link with Kerberos; see whether krb5.h
1258 # defines KEYTYPE_ARCFOUR_56 (where "defines" means
1259 # "as a #define or as an enum member).
1261 AC_MSG_CHECKING([whether krb5.h defines KEYTYPE_ARCFOUR_56])
1271 printf("%u\n", KEYTYPE_ARCFOUR_56);
1277 AC_DEFINE(HAVE_KEYTYPE_ARCFOUR_56, 1, [Define if krb5.h defines KEYTYPE_ARCFOUR_56])
1285 # It's not Heimdal or MIT.
1288 if test "x$want_krb5" = "xyes"
1291 # The user tried to force us to use the library,
1292 # but we can't do so; report an error.
1294 AC_MSG_ERROR(Kerberos not found)
1299 AC_MSG_RESULT(Kerberos not found - disabling dissection for some kerberos data in packet decoding)
1307 # The user asked us not to use Kerberos, or they didn't
1308 # say whether they wanted us to use it but we found
1315 AC_SUBST(KRB5_CFLAGS)
1318 LIBS="$wireshark_save_LIBS"
1319 AC_WIRESHARK_POP_FLAGS
1323 # AC_WIRESHARK_GEOIP_CHECK
1325 AC_DEFUN([AC_WIRESHARK_GEOIP_CHECK],
1327 want_geoip=defaultyes
1329 if test "x$want_geoip" = "xdefaultyes"; then
1331 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
1333 if test -d "$withval"; then
1334 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, ${withval}/lib)
1339 if test "x$want_geoip" = "xyes"; then
1340 AC_CHECK_LIB(GeoIP, GeoIP_new,
1343 AC_DEFINE(HAVE_GEOIP, 1, [Define to use GeoIP library])
1347 if test "x$have_good_geoip" = "xyes"; then
1348 AC_CHECK_LIB(GeoIP, GeoIP_country_name_by_ipnum_v6,
1350 AC_DEFINE(HAVE_GEOIP_V6, 1, [Define if GeoIP supports IPv6 (GeoIP 1.4.5 and later)])
1355 AC_MSG_RESULT(not required)
1360 # AC_WIRESHARK_LIBSSH_CHECK
1362 AC_DEFUN([AC_WIRESHARK_LIBSSH_CHECK],
1364 want_libssh=defaultyes
1366 if test "x$want_libssh" = "xdefaultyes"; then
1368 if test "x$ac_cv_enable_usr_local" = "xyes" ; then
1370 if test -d "$withval"; then
1371 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, ${withval}/lib)
1376 if test "x$want_libssh" = "xyes"; then
1377 AC_CHECK_LIB(ssh, ssh_new,
1380 AC_DEFINE(HAVE_LIBSSH, 1, [Define to use libssh library])
1381 have_good_libssh=yes
1384 AC_CHECK_LIB(ssh, ssh_userauth_agent,
1387 AC_DEFINE(HAVE_SSH_USERAUTH_AGENT, 1, [Libssh library has ssh_userauth_agent])
1388 have_ssh_userauth_agent=yes
1392 AC_MSG_RESULT(not required)
1396 #AC_WIRESHARK_LDFLAGS_CHECK
1398 # $1 : ldflag(s) to test
1400 # We attempt to compile and link a test program with the specified linker
1401 # flag. The defined flag is added to LDFLAGS only if the link succeeds.
1403 AC_DEFUN([AC_WIRESHARK_LDFLAGS_CHECK],
1405 AC_MSG_CHECKING(whether we can add $LD_OPTION to LDFLAGS)
1406 AC_WIRESHARK_PUSH_FLAGS
1407 LDFLAGS="$LDFLAGS $LD_OPTION"
1408 can_add_to_ldflags=""
1411 AC_LANG_SOURCE([[main() { return; }]])
1415 WS_LDFLAGS="$WS_LDFLAGS $LD_OPTION"
1416 can_add_to_ldflags=yes
1420 can_add_to_ldflags=no
1422 AC_WIRESHARK_POP_FLAGS
1426 dnl Check whether, if you pass an unknown warning option to the
1427 dnl compiler, it fails or just prints a warning message and succeeds.
1428 dnl Set ac_wireshark_unknown_warning_option_error to the appropriate flag
1429 dnl to force an error if it would otherwise just print a warning message
1432 AC_DEFUN([AC_WIRESHARK_CHECK_UNKNOWN_WARNING_OPTION_ERROR],
1434 AC_MSG_CHECKING([whether the compiler fails when given an unknown warning option])
1435 AC_WIRESHARK_PUSH_FLAGS
1436 CFLAGS="$CFLAGS -Wxyzzy-this-will-never-succeed-xyzzy"
1441 AC_MSG_RESULT([no, adding -Werror=unknown-warning-option])
1443 # We're assuming this is clang, where
1444 # -Werror=unknown-warning-option is the appropriate
1445 # option to force the compiler to fail.
1447 ac_wireshark_unknown_warning_option_error="-Werror=unknown-warning-option"
1450 AC_MSG_RESULT([yes])
1452 AC_WIRESHARK_POP_FLAGS
1456 dnl Check whether, if you pass a valid-for-C-but-not-C++ option to the
1457 dnl compiler, it fails or just prints a warning message and succeeds.
1458 dnl Set ac_wireshark_non_cxx_warning_option_error to the appropriate flag
1459 dnl to force an error if it would otherwise just print a warning message
1462 AC_DEFUN([AC_WIRESHARK_CHECK_NON_CXX_WARNING_OPTION_ERROR],
1464 AC_MSG_CHECKING([whether the compiler fails when given an warning option not supported for C++])
1466 # Some C+ compilers warn about -Wmissing-prototypes, and some warn
1467 # about -Wmissing-declarations. Check both.
1470 AC_WIRESHARK_PUSH_FLAGS
1471 save_CXXFLAGS="$CXXFLAGS"
1472 for flag in -Wmissing-prototypes -Wmissing-declarations; do
1473 CXXFLAGS="$save_CXXFLAGS $flag"
1479 # We're assuming this is g++, where -Werror is the
1480 # appropriate option to force the compiler to fail.
1481 # Check whether it fails with -Werror.
1483 # NOTE: it's important to put -Werror *before*
1484 # the flag, otherwise, when it sees the flag,
1485 # it doesn't yet know that warnings should be
1486 # treated as errors, and doesn't treat the
1487 # "that's C-only" warning as an error.
1489 CXXFLAGS="$save_CXXFLAGS -Werror $flag"
1495 # No, so this option is actually OK
1496 # with our C++ compiler.
1498 # (We need an empty command here to
1499 # prevent some versions of autoconf
1500 # from generating a script with an
1501 # empty "then" clause for an if statement.)
1507 # Yes, so we need -Werror for the tests.
1509 ac_wireshark_non_cxx_warning_option_error="-Werror"
1514 AC_WIRESHARK_POP_FLAGS
1516 if test x$ac_wireshark_non_cxx_warning_option_error = x; then
1517 AC_MSG_RESULT([yes])
1519 AC_MSG_RESULT([no, adding -Werror])
1524 # AC_WIRESHARK_COMPILER_FLAGS_CHECK
1526 # $1 : flags to test
1527 # $2 : if supplied, C for C-only flags, CXX for C++-only flags
1528 # $3 : if supplied, a program to try to compile with the flag
1529 # and, if the compile fails when -Werror is turned on,
1530 # we don't add the flag - used for warning flags that
1531 # issue incorrect or non-useful warnings with some
1533 # $4 : must be supplied if $3 is supplied - a message describing
1534 # for what the test program is testing
1536 # The macro first determines if the compiler supports GCC-style flags.
1537 # Then it attempts to compile with the defined cflags. The defined
1538 # flags are added to WS_CHECKED_CFLAGS only if the compilation succeeds.
1539 # CFLAGS remains unchanged. can_add_to_cflags is set to "no" when the
1540 # flag is checked but unavailable. (Like-wise for CXXFLAGS.)
1542 # We do this because not all such options are necessarily supported by
1543 # the version of the particular compiler we're using.
1545 AC_DEFUN([AC_WIRESHARK_COMPILER_FLAGS_CHECK],
1547 can_add_to_cflags=""
1548 can_add_to_cxxflags=""
1549 if test "x$ac_supports_gcc_flags" = "xyes" ; then
1550 if test "$2" != CXX ; then
1552 # Not C++-only; if this can be added to the C compiler flags, add them.
1554 # If the option begins with "-W", add
1555 # $ac_wireshark_unknown_warning_option_error to make sure that
1556 # we'll get an error if it's an unknown warning option; not all
1557 # compilers treat unknown warning options as errors (I'm looking at
1560 # If the option begins with "-f" or "-m", add -Werror to make sure
1561 # that we'll get an error if we get "argument unused during compilation"
1562 # warnings, as those will either cause a failure for files compiled
1563 # with -Werror or annoying noise for files compiled without it.
1564 # (Yeah, you, clang.)
1566 AC_MSG_CHECKING(whether we can add $GCC_OPTION to CFLAGS)
1567 AC_WIRESHARK_PUSH_FLAGS
1568 if expr "x$GCC_OPTION" : "x-W.*" >/dev/null
1570 CFLAGS="$CFLAGS $ac_wireshark_unknown_warning_option_error $GCC_OPTION"
1571 elif expr "x$GCC_OPTION" : "x-f.*" >/dev/null
1573 CFLAGS="$CFLAGS -Werror $GCC_OPTION"
1574 elif expr "x$GCC_OPTION" : "x-m.*" >/dev/null
1576 CFLAGS="$CFLAGS -Werror $GCC_OPTION"
1578 CFLAGS="$CFLAGS $GCC_OPTION"
1582 AC_LANG_SOURCE([[int foo;]])
1586 can_add_to_cflags=yes
1588 # OK, do we have a test program? If so, check
1589 # whether it fails with this option and -Werror,
1590 # and, if so, don't include it.
1592 # We test arg 4 here because arg 3 is a program which
1593 # could contain quotes (breaking the comparison).
1595 if test "x$4" != "x" ; then
1596 CFLAGS="$CFLAGS -Werror"
1597 AC_MSG_CHECKING(whether $GCC_OPTION $4)
1599 [AC_LANG_SOURCE($3)],
1603 # Remove "force an error for a warning" options, if we
1604 # added them, by setting CFLAGS to the saved value plus
1605 # just the new option.
1607 WS_CFLAGS="$WS_CFLAGS $GCC_OPTION"
1608 if test "$CC" = "$CC_FOR_BUILD"; then
1610 # We're building the build tools with the same compiler
1611 # with which we're building Wireshark, so add the flags
1612 # to the flags for that compiler as well.
1614 CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD $GCC_OPTION"
1622 # Remove "force an error for a warning" options, if we
1623 # added them, by setting CFLAGS to the saved value plus
1624 # just the new option.
1626 WS_CFLAGS="$WS_CFLAGS $GCC_OPTION"
1627 if test "$CC" = "$CC_FOR_BUILD"; then
1629 # We're building the build tools with the same compiler
1630 # with which we're building Wireshark, so add the flags
1631 # to the flags for that compiler as well.
1633 CFLAGS_FOR_BUILD="$CFLAGS_FOR_BUILD $GCC_OPTION"
1639 can_add_to_cflags=no
1641 AC_WIRESHARK_POP_FLAGS
1644 # Did we find a C++ compiler?
1646 if test "x$CXX" != "x" ; then
1648 # Yes. Is this option only for the C compiler?
1650 if test "$2" != C ; then
1652 # Not C-only; if this option can be added to the C++ compiler
1655 # If the option begins with "-W", add
1656 # $ac_wireshark_unknown_warning_option_error, as per the above, and
1657 # also add $ac_wireshark_non_cxx_warning_option_error, because at
1658 # lease some versions of g++ whine about -Wmissing-prototypes, the
1659 # fact that at least one of those versions refuses to warn about
1660 # function declarations without an earlier declaration nonwithstanding;
1661 # perhaps there's a reason not to warn about that with C++ even though
1662 # warning about it can be a Good Idea with C, but it's not obvious to
1665 # If the option begins with "-f" or "-m", add -Werror to make sure
1666 # that we'll get an error if we get "argument unused during compilation"
1667 # warnings, as those will either cause a failure for files compiled
1668 # with -Werror or annoying noise for files compiled without it.
1669 # (Yeah, you, clang++.)
1671 AC_MSG_CHECKING(whether we can add $GCC_OPTION to CXXFLAGS)
1672 AC_WIRESHARK_PUSH_FLAGS
1673 if expr "x$GCC_OPTION" : "x-W.*" >/dev/null
1675 CXXFLAGS="$CXXFLAGS $ac_wireshark_unknown_warning_option_error $ac_wireshark_non_cxx_warning_option_error $GCC_OPTION"
1676 elif expr "x$GCC_OPTION" : "x-f.*" >/dev/null
1678 CXXFLAGS="$CXXFLAGS -Werror $GCC_OPTION"
1679 elif expr "x$GCC_OPTION" : "x-m.*" >/dev/null
1681 CXXFLAGS="$CXXFLAGS -Werror $GCC_OPTION"
1683 CXXFLAGS="$CXXFLAGS $GCC_OPTION"
1688 AC_LANG_SOURCE([[int foo;]])
1692 can_add_to_cxxflags=yes
1694 # OK, do we have a test program? If so, check
1695 # whether it fails with this option and -Werror,
1696 # and, if so, don't include it.
1698 # We test arg 4 here because arg 3 is a program which
1699 # could contain quotes (breaking the comparison).
1701 if test "x$4" != "x" ; then
1702 CXXFLAGS="$CXXFLAGS -Werror"
1703 AC_MSG_CHECKING(whether $GCC_OPTION $4)
1705 [AC_LANG_SOURCE($3)],
1709 # Remove "force an error for a warning" options, if we
1710 # added them, by setting CXXFLAGS to the saved value plus
1711 # just the new option.
1713 WS_CXXFLAGS="$WS_CXXFLAGS $GCC_OPTION"
1720 # Remove "force an error for a warning" options, if we
1721 # added them, by setting CXXFLAGS to the saved value plus
1722 # just the new option.
1724 WS_CXXFLAGS="$WS_CXXFLAGS $GCC_OPTION"
1729 can_add_to_cxxflags=no
1731 AC_WIRESHARK_POP_FLAGS
1734 if test "(" "$can_add_to_cflags" = "yes" -a "$can_add_to_cxxflags" = "no" ")" \
1735 -o "(" "$can_add_to_cflags" = "no" -a "$can_add_to_cxxflags" = "yes" ")"
1738 # Confusingly, some C++ compilers like -Wmissing-prototypes but
1739 # don't like -Wmissing-declarations and others like
1740 # -Wmissing-declarations but don't like -Wmissing-prototypes,
1741 # the fact that the corresponding C compiler likes both. Don't
1744 if test "(" x$GCC_OPTION != x-Wmissing-prototypes ")" \
1745 -a "(" x$GCC_OPTION != x-Wmissing-declarations ")"
1747 AC_MSG_WARN([$CC and $CXX appear to be a mismatched pair])
1754 # AC_WIRESHARK_GCC_FORTIFY_SOURCE_CHECK
1756 # Checks if '-D_FORTIFY_SOURCE=...' is OK to use in CPPFLAGS.
1757 # Use '-D_FORTIFY_SOURCE=...' in CPPFLAGS only if the GCC 'optimization level' is > 0.
1758 # The use of '-D_FORTIFY_SOURCE=...' will cause a warning with at least some versions
1759 # of glibc if the GCC "optimization level" is 0 (default or -O or -O0)
1760 # when using GCC to compile a source file which references the macro definition.
1762 # See: http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
1763 # See: http://sourceware.org/bugzilla/show_bug.cgi?id=13979
1765 # We'll use '-D_FORTIFY_SOURCE=2' only if there's no warning; Among other things this means
1766 # that the use of '-D_FORTIFY_SOURCE=2' with '-Werror' and '-O0' won't cause
1767 # the compiler to stop on error.
1768 # Assumption: CFLAGS already contains whatever optimization option including none) is
1772 AC_DEFUN([AC_WIRESHARK_GCC_FORTIFY_SOURCE_CHECK],
1774 if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then
1775 AC_MSG_CHECKING([whether -D_FORTIFY_SOURCE=... can be used (without generating a warning)])
1776 AC_WIRESHARK_PUSH_FLAGS
1777 CFLAGS="$CFLAGS -Werror"
1778 CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"
1786 WS_CPPFLAGS="$WS_CPPFLAGS -D_FORTIFY_SOURCE=2"
1791 AC_WIRESHARK_POP_FLAGS
1796 # AC_WIRESHARK_GCC_SYSTEM_INCLUDE
1798 # Replace -I include flag for -isystem in FLAGS argument
1800 AC_DEFUN([AC_WIRESHARK_GCC_SYSTEM_INCLUDE],
1802 if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then
1803 $1=`printf %s " $$1" \
1804 | sed -e 's/ *-I *\// -isystem\//g' -e 's/^ *//'`
1809 # PKG_WIRESHARK_CHECK_SYSTEM_MODULES
1811 AC_DEFUN([PKG_WIRESHARK_CHECK_SYSTEM_MODULES],
1813 PKG_CHECK_MODULES($@)
1814 AC_WIRESHARK_GCC_SYSTEM_INCLUDE($1_CFLAGS)
1818 # AC_WIRESHARK_OSX_INTEGRATION_CHECK
1820 # Checks for the presence of OS X integration functions in the GTK+ framework
1821 # or as a separate library.
1823 # GTK+ for MAC OS X now lives on www.gtk.org at:
1825 # http://www.gtk.org/download/macos.php
1827 # Details on building with GTK-OSX are available at:
1829 # http://live.gnome.org/GTK%2B/OSX/Building
1831 # The GTK-OSX library has been renamed to gtkmacintegration.
1832 # It was previously named igemacintegration.
1834 # http://live.gnome.org/GTK%2B/OSX/Integration
1835 # for the old Carbon-based integration functions
1837 AC_DEFUN([AC_WIRESHARK_OSX_INTEGRATION_CHECK],
1839 AC_WIRESHARK_PUSH_FLAGS
1840 ac_save_LIBS="$LIBS"
1841 CFLAGS="$CFLAGS $GTK_CFLAGS"
1842 LIBS="$GTK_LIBS $LIBS"
1845 # Check for the new integration functions in a -lgtkmacintegration
1848 AC_CHECK_LIB(gtkmacintegration, gtkosx_application_set_menu_bar,
1850 AC_DEFINE(HAVE_GTKOSXAPPLICATION, 1,
1851 [Define to 1 if -lgtkmacintegration includes the GtkOSXApplication Integration functions.])
1853 # We don't want gtk stuff in LIBS (which is reset below) so
1854 # manually set GTK_LIBS (which is more appropriate)
1855 GTK_LIBS="$GTK_LIBS -lgtkmacintegration"
1858 if test x$have_ige_mac = x
1861 # Not found - check for the old integration functions in
1862 # the Gtk framework.
1864 AC_CHECK_LIB(Gtk, gtk_mac_menu_set_menu_bar,
1866 AC_DEFINE(HAVE_IGE_MAC_INTEGRATION, 1,
1867 [Define to 1 if the the Gtk+ framework or a separate library includes the Imendio IGE Mac OS X Integration functions.])
1869 # We don't want gtk stuff in LIBS (which is reset below) so
1870 # manually set GTK_LIBS (which is more appropriate)
1871 GTK_LIBS="$GTK_LIBS -lGtk"
1875 if test x$have_ige_mac = x
1878 # Not found - check for the old integration functions in
1879 # a -lgtkmacintegration library.
1881 AC_CHECK_LIB(gtkmacintegration, gtk_mac_menu_set_menu_bar,
1883 AC_DEFINE(HAVE_IGE_MAC_INTEGRATION, 1,
1884 [Define to 1 if the the Gtk+ framework or a separate library includes the Imendio IGE Mac OS X Integration functions.])
1886 # We don't want gtk stuff in LIBS (which is reset below) so
1887 # manually set GTK_LIBS (which is more appropriate)
1888 GTK_LIBS="$GTK_LIBS -lgtkmacintegration"
1891 LIBS="$ac_save_LIBS"
1892 AC_WIRESHARK_POP_FLAGS
1895 # Based on AM_PATH_GTK in gtk-2.0.m4.
1897 dnl AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION([MODULE, MINIMUM-VERSION,
1898 dnl REQUESTED-MAJOR_VERSION, [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]])
1899 dnl Test for a particular Qt module, for a particular Qt major version,
1900 dnl and, if we find it add the flags and libraries for it to Qt_CFLAGS
1903 AC_DEFUN([AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION],
1913 # Version of the module we're checking for.
1916 min_qt_version=ifelse([$2], ,4.0.0,$2)
1925 # Version of the module we're checking for.
1928 min_qt_version=5.0.0
1932 AC_MSG_ERROR([Qt version $3 is not a known Qt version])
1936 pkg_config_module="${modprefix}$1"
1937 AC_MSG_CHECKING(for $pkg_config_module - version >= $min_qt_version)
1938 if $PKG_CONFIG --atleast-version $min_qt_version $pkg_config_module; then
1939 mod_version=`$PKG_CONFIG --modversion $pkg_config_module`
1940 AC_MSG_RESULT(yes (version $mod_version))
1941 mod_cflags=`$PKG_CONFIG --cflags $pkg_config_module`
1942 AC_WIRESHARK_GCC_SYSTEM_INCLUDE(mod_cflags)
1943 Qt_CFLAGS="$Qt_CFLAGS $mod_cflags"
1944 Qt_LIBS="$Qt_LIBS `$PKG_CONFIG --libs $pkg_config_module`"
1945 # Run Action-If-Found
1946 ifelse([$4], , :, [$4])
1949 # Run Action-If-Not-Found
1950 ifelse([$5], , :, [$5])
1954 dnl AC_WIRESHARK_QT_MODULE_CHECK([MODULE, MINIMUM-VERSION,
1955 dnl REQUESTED-MAJOR_VERSION, [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]])
1956 dnl Test for a particular Qt module and add the flags and libraries
1957 dnl for it to Qt_CFLAGS and Qt_LIBS.
1959 AC_DEFUN([AC_WIRESHARK_QT_MODULE_CHECK],
1962 # Prior to Qt 5, modules were named QtXXX.
1963 # In Qt 5, they're named Qt5XXX.
1964 # This will need to change to handle future major Qt releases.
1970 # Check for all versions of Qt we support.
1971 # Try the Qt 5 version first.
1991 AC_MSG_ERROR([Qt version $3 is not a known Qt version])
1995 for version in $versions
1997 AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION($1, $2,
1998 $version, [foundit=yes], [foundit=no])
1999 if test "x$foundit" = "xyes"; then
2004 if test "x$foundit" = "xyes"; then
2005 # Remember which version of Qt we found
2007 # Run Action-If-Found
2008 ifelse([$4], , :, [$4])
2010 # Run Action-If-Not-Found
2011 ifelse([$5], , :, [$5])
2015 AC_DEFUN([AC_WIRESHARK_QT_ADD_PIC_IF_NEEDED],
2018 AC_WIRESHARK_PUSH_FLAGS
2019 CPPFLAGS="$CPPFLAGS $Qt_CFLAGS"
2020 AC_MSG_CHECKING([whether Qt works without -fPIC])
2022 [AC_LANG_SOURCE([[#include <QtCore>]])],
2023 [AC_MSG_RESULT(yes)],
2026 AC_MSG_CHECKING([whether Qt works with -fPIC])
2027 CPPFLAGS="$CPPFLAGS -fPIC"
2029 [AC_LANG_SOURCE([[#include <QtCore>]])],
2032 Qt_CFLAGS="$Qt_CFLAGS -fPIC"
2036 AC_MSG_ERROR(Couldn't compile Qt without -fPIC nor with -fPIC)
2039 AC_WIRESHARK_POP_FLAGS
2043 dnl AC_WIRESHARK_QT_CHECK([MINIMUM-VERSION, REQUESTED-MAJOR_VERSION,
2044 dnl [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]])
2045 dnl Test for Qt and define Qt_CFLAGS and Qt_LIBS.
2047 AC_DEFUN([AC_WIRESHARK_QT_CHECK],
2049 qt_version_to_check="$2"
2052 # Check for the Core module; if we don't have that,
2053 # we don't have Qt. If we *do* have it, we know what
2054 # version it is, so only check for that version of
2057 AC_WIRESHARK_QT_MODULE_CHECK(Core, $1, $qt_version_to_check,
2058 [qt_version_to_check=$qt_version],
2061 if test x"$no_qt" = x ; then
2063 # We need the Gui module as well.
2065 AC_WIRESHARK_QT_MODULE_CHECK(Gui, $1, $qt_version_to_check, ,
2069 if test x"$no_qt" = x ; then
2071 # Qt 5.0 appears to move the widgets out of Qt GUI
2072 # to Qt Widgets; look for the Widgets module, but
2073 # don't fail if we don't have it.
2075 AC_WIRESHARK_QT_MODULE_CHECK(Widgets, $1, $qt_version_to_check)
2078 # Qt 5.0 also appears to move the printing support into
2079 # the Qt PrintSupport module.
2081 AC_WIRESHARK_QT_MODULE_CHECK(PrintSupport, $1, $qt_version_to_check)
2084 # Qt 5.0 added multimedia in the Qt
2085 # Multimedia module.
2087 have_qt_multimedia_lib=no
2088 AC_WIRESHARK_QT_MODULE_CHECK(Multimedia, $1, $qt_version_to_check,
2089 have_qt_multimedia_lib=yes
2090 AC_DEFINE(QT_MULTIMEDIA_LIB, 1, [Define if we have QtMultimedia]))
2093 # While we're at it, look for QtMacExtras. (Presumably
2094 # if we're not building for OS X, it won't be present.)
2096 # XXX - is there anything in QtX11Extras or QtWinExtras
2097 # that we should be using?
2099 AC_WIRESHARK_QT_MODULE_CHECK(MacExtras, $1, $qt_version_to_check,
2100 AC_DEFINE(QT_MACEXTRAS_LIB, 1, [Define if we have QtMacExtras]))
2102 AC_WIRESHARK_QT_ADD_PIC_IF_NEEDED
2106 # Run Action-If-Found
2107 ifelse([$3], , :, [$3])
2109 # Run Action-If-Not-Found
2110 ifelse([$4], , :, [$4])
2115 dnl AC_WIRESHARK_QT_TOOL_CHECK([TOOLPATHVAR, TOOL, REQUESTED-MAJOR_VERSION])
2116 dnl Test for a particular Qt tool for some specific version of Qt
2118 AC_DEFUN([AC_WIRESHARK_QT_TOOL_CHECK],
2121 # At least in some versions of Debian/Ubuntu, and perhaps
2122 # other OSes, the Qt build tools are just links to a
2123 # program called "qtchooser", and even if you want to
2124 # build with Qt 5, running the tool might give you the
2125 # Qt 4 version of the tool unless you run the tool with
2128 # So we look for qtchooser and, if we find it, use the
2129 # -qt={version} argument, otherwise we look for particular
2130 # tool versions using tool name suffixes.
2132 AC_PATH_PROG(QTCHOOSER, qtchooser)
2133 if test ! -z "$QTCHOOSER"; then
2135 # We found qtchooser; we assume that means that
2136 # the tool is linked to qtchooser, so that we
2137 # can run it with the -qt={version} flag to get
2138 # the appropriate version of the tool.
2140 AC_PATH_PROG($1, $2)
2141 if test "x$$1" = x; then
2143 # We can't build Qt Wireshark without that
2146 AC_MSG_ERROR(I couldn't find $2; make sure it's installed and in your path)
2150 # Add the -qt={version} argument to it.
2152 $1="$$1 -qt=$qt_version"
2155 # Annoyingly, on some Linux distros (e.g. Debian)
2156 # the Qt 5 tools have no suffix and the Qt 4 tools
2157 # have suffix -qt4. On other distros (e.g. openSUSE)
2158 # the Qt 5 tools have suffix -qt5 and the Qt 4 tools
2161 # So we check for the tool first with the -qtN suffix
2162 # and then with no suffix.
2164 AC_PATH_PROGS($1, [$2-qt$qt_version $2])
2165 if test "x$$1" = x; then
2167 # We can't build Qt Wireshark without that
2170 AC_MSG_ERROR(I couldn't find $2-qt$qt_version or $2; make sure it's installed and in your path)