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.
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16 dnl along with this program; if not, write to the Free Software
17 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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22 dnl are the output of Autoconf. You need not follow the terms of the GNU
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24 dnl though portions of the text of Autoconf appear in them. The GNU
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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],
62 [AX_APPEND_FLAG(-L$2, $1)
65 AX_APPEND_FLAG(-R$2, $1)
71 # AC_WIRESHARK_PUSH_FLAGS
73 # Push our flags to CFLAGS/etc.
75 AC_DEFUN([AC_WIRESHARK_PUSH_FLAGS],
77 ac_ws_CPPLAGS_saved="$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="$ac_ws_LDFLAGS_saved"
102 # AC_WIRESHARK_BREAKLOOP_TRY_LINK
104 AC_DEFUN([AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK],
120 ws_breakloop_compiled=yes
123 ws_breakloop_compiled=no
130 # AC_WIRESHARK_PCAP_CHECK
132 AC_DEFUN([AC_WIRESHARK_PCAP_CHECK],
134 AC_WIRESHARK_PUSH_FLAGS
136 if test -z "$pcap_dir"
139 # XXX need to set a var AC_CHECK_HEADER(pcap.h,,)
142 # The user didn't specify a directory in which libpcap resides.
143 # First, look for a pcap-config script.
145 AC_PATH_TOOL(PCAP_CONFIG, pcap-config)
147 if test -n "$PCAP_CONFIG" ; then
151 # Now check whether it's the libpcap 1.0 version, which
152 # put a space after "-L" - on some platforms, that doesn't
155 AC_MSG_CHECKING(for broken pcap-config)
156 case "`\"$PCAP_CONFIG\" --libs`" in
160 # Space after -L. Pretend pcap-config doesn't exist.
174 if test -n "$PCAP_CONFIG" ; then
176 # Found it, and it's usable; use it to get the include flags
179 CPPFLAGS="$CPPFLAGS `\"$PCAP_CONFIG\" --cflags`"
182 # Didn't find it; we have to look for libpcap ourselves.
183 # We assume that the current library search path will work,
184 # but we may have to look for the header in a "pcap"
185 # subdirectory of "/usr/include" or "/usr/local/include",
186 # as some systems apparently put "pcap.h" in a "pcap"
187 # subdirectory, and we also check "$prefix/include" - and
188 # "$prefix/include/pcap", in case $prefix is set to
189 # "/usr/include" or "/usr/local/include".
191 # XXX - should we just add "$prefix/include" to the include
192 # search path and "$prefix/lib" to the library search path?
194 AC_MSG_CHECKING(for extraneous pcap header directories)
196 pcap_dir_list="/usr/local/include/pcap /usr/include/pcap $prefix/include/pcap $prefix/include"
197 for pcap_dir in $pcap_dir_list
199 if test -d $pcap_dir ; then
200 if test x$pcap_dir != x/usr/include -a x$pcap_dir != x/usr/local/include ; then
201 CPPFLAGS="$CPPFLAGS -I$pcap_dir"
203 found_pcap_dir=" $found_pcap_dir -I$pcap_dir"
208 if test "$found_pcap_dir" != "" ; then
209 AC_MSG_RESULT(found --$found_pcap_dir added to CFLAGS)
211 AC_MSG_RESULT(not found)
216 # The user specified a directory in which libpcap resides,
217 # so add the "include" subdirectory of that directory to
218 # the include file search path and the "lib" subdirectory
219 # of that directory to the library search path.
221 # XXX - if there's also a libpcap in a directory that's
222 # already in CPPFLAGS or LDFLAGS, this won't make us find
223 # the version in the specified directory, as the compiler
224 # and/or linker will search that other directory before it
225 # searches the specified directory.
227 CPPFLAGS="$CPPFLAGS -I$pcap_dir/include"
228 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $pcap_dir/lib)
232 AC_CHECK_HEADER(pcap.h,,
233 AC_MSG_ERROR([[Header file pcap.h not found; if you installed libpcap
234 from source, did you also do \"make install-incl\", and if you installed a
235 binary package of libpcap, is there also a developer's package of libpcap,
236 and did you also install that package?]]))
238 if test -n "$PCAP_CONFIG" ; then
240 # We have pcap-config; we assume that means we have libpcap
241 # installed and that pcap-config will tell us whatever
242 # libraries libpcap needs.
244 if test x$enable_static = xyes; then
245 PCAP_LIBS="`\"$PCAP_CONFIG\" --libs --static`"
247 PCAP_LIBS="`\"$PCAP_CONFIG\" --libs`"
249 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
252 # Check to see if we find "pcap_open_live" in "-lpcap".
253 # Also check for various additional libraries that libpcap might
256 AC_CHECK_LIB(pcap, pcap_open_live,
259 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
261 ac_wireshark_extras_found=no
263 for extras in "-lcfg -lodm" "-lpfring"
265 AC_MSG_CHECKING([for pcap_open_live in -lpcap with $extras])
266 LIBS="-lpcap $extras $ac_save_LIBS"
268 # XXX - can't we use AC_CHECK_LIB here?
275 pcap_open_live(NULL, 0, 0, 0, NULL);
278 ac_wireshark_extras_found=yes
280 PCAP_LIBS="-lpcap $extras"
281 AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library])
286 if test x$ac_wireshark_extras_found = xyes
291 if test x$ac_wireshark_extras_found = xno
293 AC_MSG_ERROR([Can't link with library libpcap.])
301 # Check whether various variables and functions are defined by
305 LIBS="$PCAP_LIBS $LIBS"
306 AC_CHECK_FUNCS(pcap_open_dead pcap_freecode)
308 # pcap_breakloop may be present in the library but not declared
309 # in the pcap.h header file. If it's not declared in the header
310 # file, attempts to use it will get warnings, and, if we're
311 # building with warnings treated as errors, that warning will
312 # cause compilation to fail.
314 # We are therefore first testing whether the function is present
315 # and then, if we're compiling with warnings as errors, testing
316 # whether it is usable. It is usable if it compiles without
317 # a -Wimplicit warning (the "compile with warnings as errors"
318 # option requires GCC). If it is not usable, we fail and tell
319 # the user that the pcap.h header needs to be updated.
321 # Ceteris paribus, this should only happen with Mac OS X 10.3[.x] which
322 # can have an up-to-date pcap library without the corresponding pcap
325 # However, it might also happen on some others OSes with some erroneous
326 # system manipulations where multiple versions of libpcap might co-exist
327 # e.g. hand made symbolic link from libpcap.so -> libpcap.so.0.8 but
328 # having the pcap header version 0.7.
330 AC_MSG_CHECKING([whether pcap_breakloop is present])
331 ac_CFLAGS_saved="$CFLAGS"
332 AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK
333 if test "x$ws_breakloop_compiled" = "xyes"; then
335 AC_DEFINE(HAVE_PCAP_BREAKLOOP, 1, [Define if pcap_breakloop is known])
336 if test "x$with_warnings_as_errors" = "xyes"; then
337 AC_MSG_CHECKING([whether pcap_breakloop is usable])
338 CFLAGS="$CFLAGS -Werror -Wimplicit"
339 AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK
340 if test "x$ws_breakloop_compiled" = "xyes"; then
345 [Your pcap library is more recent than your pcap header.
346 As you are building with compiler warnings treated as errors, Wireshark
347 won't be able to use functions not declared in that header.
348 If you wish to build with compiler warnings treated as errors, You should
349 install a newer version of the header file.])
351 CFLAGS="$ac_CFLAGS_saved"
358 # Later versions of Mac OS X 10.3[.x] ship a pcap.h that
359 # doesn't define pcap_if_t but ship an 0.8[.x] libpcap,
360 # so the library has "pcap_findalldevs()", but pcap.h
361 # doesn't define "pcap_if_t" so you can't actually *use*
362 # "pcap_findalldevs()".
364 # That even appears to be true of systems shipped with
365 # 10.3.4, so it doesn't appear only to be a case of
366 # Software Update not updating header files.
368 # (You can work around this by installing the 0.8 header
371 AC_CACHE_CHECK([whether pcap_findalldevs is present and usable],
372 [ac_cv_func_pcap_findalldevs],
381 pcap_if_t *devpointer;
384 pcap_findalldevs(&devpointer, errbuf);
389 ac_cv_func_pcap_findalldevs=yes
392 ac_cv_func_pcap_findalldevs=no
396 # Don't check for other new routines that showed up after
397 # "pcap_findalldevs()" if we don't have a usable
398 # "pcap_findalldevs()", so we don't end up using them if the
399 # "pcap.h" is crufty and old and doesn't declare them.
401 if test $ac_cv_func_pcap_findalldevs = "yes" ; then
402 AC_DEFINE(HAVE_PCAP_FINDALLDEVS, 1,
403 [Define to 1 if you have the `pcap_findalldevs' function and a pcap.h that declares pcap_if_t.])
404 AC_CHECK_FUNCS(pcap_datalink_val_to_name pcap_datalink_name_to_val)
405 AC_CHECK_FUNCS(pcap_datalink_val_to_description)
406 AC_CHECK_FUNCS(pcap_list_datalinks pcap_set_datalink pcap_lib_version)
407 AC_CHECK_FUNCS(pcap_get_selectable_fd pcap_free_datalinks)
408 AC_CHECK_FUNC(pcap_create,
410 AC_DEFINE(HAVE_PCAP_CREATE, 1,
411 [Define to 1 if you have the `pcap_create' function.])
412 AC_DEFINE(CAN_SET_CAPTURE_BUFFER_SIZE, 1,
413 [Define to 1 if the capture buffer size can be set.])
415 AC_CHECK_FUNCS(bpf_image pcap_set_tstamp_precision)
418 AC_WIRESHARK_POP_FLAGS
422 AC_DEFUN([AC_WIRESHARK_PCAP_REMOTE_CHECK],
425 LIBS="$PCAP_LIBS $LIBS"
426 AC_CHECK_FUNCS(pcap_open)
427 if test $ac_cv_func_pcap_open = "yes" ; then
428 AC_DEFINE(HAVE_PCAP_REMOTE, 1,
429 [Define to 1 if you have libpcap/WinPcap remote capturing support and prefer to use these new API features.])
431 AC_CHECK_FUNCS(pcap_setsampling)
436 # AC_WIRESHARK_ZLIB_CHECK
438 AC_DEFUN([AC_WIRESHARK_ZLIB_CHECK],
440 AC_WIRESHARK_PUSH_FLAGS
442 if test "x$zlib_dir" != "x"
445 # The user specified a directory in which zlib resides,
446 # so add the "include" subdirectory of that directory to
447 # the include file search path and the "lib" subdirectory
448 # of that directory to the library search path.
450 # XXX - if there's also a zlib in a directory that's
451 # already in CPPFLAGS or LDFLAGS, this won't make us find
452 # the version in the specified directory, as the compiler
453 # and/or linker will search that other directory before it
454 # searches the specified directory.
456 CPPFLAGS="$CPPFLAGS -I$zlib_dir/include"
457 AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $zlib_dir/lib)
461 # Make sure we have "zlib.h". If we don't, it means we probably
462 # don't have zlib, so don't use it.
464 AC_CHECK_HEADER(zlib.h,,
466 if test "x$zlib_dir" != "x"
469 # The user used "--with-zlib=" to specify a directory
470 # containing zlib, but we didn't find the header file
471 # there; that either means they didn't specify the
472 # right directory or are confused about whether zlib
473 # is, in fact, installed. Report the error and give up.
475 AC_MSG_ERROR([zlib header not found in directory specified in --with-zlib])
477 if test "x$want_zlib" = "xyes"
480 # The user tried to force us to use the library, but we
481 # couldn't find the header file; report an error.
483 AC_MSG_ERROR(Header file zlib.h not found.)
486 # We couldn't find the header file; don't use the
487 # library, as it's probably not present.
494 if test "x$want_zlib" != "xno"
497 # Well, we at least have the zlib header file.
499 # We link with zlib to support uncompression of
500 # gzipped network traffic, e.g. in an HTTP request
503 # Check for inflate() in zlib, to make sure the
504 # zlib library is usable. For example, on at
505 # least some versions of Fedora, if you have a
506 # 64-bit machine, have both the 32-bit and 64-bit
507 # versions of the run-time zlib package installed,
508 # and have only the *32-bit* version of the zlib
509 # development package installed, it'll find the
510 # header, and think it can use zlib, and will use
511 # it in subsequent tests, but it'll try and link
512 # 64-bit test programs with the 32-bit library,
513 # causing those tests to falsely fail. Hilarity
516 if test "x$zlib_dir" != "x"
518 WS_CPPFLAGS="$WS_CPPFLAGS -I$zlib_dir/include"
519 AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, $zlib_dir/lib)
521 AC_DEFINE(HAVE_ZLIB, 1, [Define to use zlib library])
523 # Check for "inflate()" in zlib to make sure we can
526 AC_CHECK_LIB(z, inflate,,
527 AC_MSG_ERROR([zlib.h found but linking with -lz failed to find inflate(); do you have the right developer package installed (32-bit vs. 64-bit)?]))
530 # Check for "inflatePrime()" in zlib, which we need
531 # in order to read compressed capture files.
533 AC_CHECK_FUNCS(inflatePrime)
535 if test "x$ac_cv_func_inflatePrime" = "xyes" ; then
537 # Now check for "inflatePrime()" in zlib when
538 # linking with the linker flags for GTK+
539 # applications; people often grab XFree86 source
540 # and build and install it on their systems,
541 # and they appear sometimes to misconfigure
542 # XFree86 so that, even on systems with zlib,
543 # it assumes there is no zlib, so the XFree86
544 # build process builds and installs its
545 # own zlib in the X11 library directory.
547 # The zlib in at least some versions of XFree86
548 # is an older version that may lack "inflatePrime()",
549 # and that's the zlib with which Wireshark gets
550 # linked, so the build of Wireshark fails.
552 AC_MSG_CHECKING([for inflatePrime missing when linking with X11])
553 AC_TRY_LINK_FUNC(inflatePrime, AC_MSG_RESULT(no),
556 AC_MSG_ERROR(old zlib found when linking with X11 - get rid of old zlib.)
561 AC_WIRESHARK_POP_FLAGS
565 # AC_WIRESHARK_LIBLUA_CHECK
567 # Sets $have_lua to yes or no.
568 # If it's yes, it also sets $LUA_CFLAGS and $LUA_LIBS.
569 AC_DEFUN([AC_WIRESHARK_LIBLUA_CHECK],[
571 AC_WIRESHARK_PUSH_FLAGS
573 if test "x$want_lua_dir" = "x"
575 # The user didn't tell us where to find Lua. Let's go look for it.
577 # First, try the standard (pkg-config) way.
578 # Unfortunately Lua's pkg-config file isn't standardly named.
579 # Some distributions allow installation of multiple versions of
580 # Lua at the same time. On such systems each version has its
583 # We use a for loop instead of giving all the package names to
584 # PKG_CHECK_MODULES because doing the latter doesn't appear to
585 # work reliably (some package names are not searched for).
586 for pkg in "lua < 5.3" lua5.2 lua-5.2 lua52 lua5.1 lua-5.1 lua51 lua5.0 lua-5.0 lua50
588 AC_MSG_CHECKING(if you have $pkg)
589 PKG_CHECK_EXISTS($pkg,
598 if test "x$have_lua" = "xyes"
600 PKG_WIRESHARK_CHECK_SYSTEM_MODULES(LUA, $pkg)
601 CPPFLAGS="$LUA_CFLAGS $CPPFLAGS"
602 AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h)
608 if test "x$have_lua" != "xyes"
610 # We don't have pkg-config or the user specified the path to
611 # Lua (in $want_lua_dir).
612 # Let's look for the header file.
614 AC_MSG_CHECKING(for the location of lua.h)
615 if test "x$want_lua_dir" = "x"
617 # The user didn't tell us where to look so we'll look in some
618 # standard locations.
619 want_lua_dir="/usr/local /usr $prefix"
621 for dir in $want_lua_dir
623 if test -r "$dir/include/lua.h"
625 header_dir="$dir/include"
630 for ver in 5.2 52 5.1 51 5.0 50
632 if test -r "$dir/include/lua$ver/lua.h"
634 header_dir="$dir/include/lua$ver"
641 if test "x$header_dir" = "x"
644 AC_MSG_RESULT(not found)
646 AC_MSG_RESULT($header_dir)
648 AC_MSG_CHECKING(the Lua version)
649 lua_ver=`$AWK AS_ESCAPE('/LUA_VERSION_NUM/ { print $NF; }' $header_dir/lua.h | sed 's/0/./')`
651 if test "x$lua_ver" = "x5.3"
653 # Wireshark doesn't compile with Lua 5.3 today
654 AC_MSG_RESULT($lua_ver - disabling Lua support)
657 AC_MSG_RESULT($lua_ver)
659 CPPFLAGS="$CPPFLAGS -I$header_dir"
660 AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h, ,
666 if test "x$have_lua" = "x"
669 LUA_CFLAGS="-I$header_dir"
671 # We have the header files and they work. Now let's check if we
672 # have the library and it works.
674 # XXX - if there's also a liblua in a directory that's
675 # already in CPPFLAGS or LDFLAGS, this won't make us find
676 # the version in the specified directory, as the compiler
677 # and/or linker will search that other directory before it
678 # searches the specified directory.
681 LDFLAGS="-L$lua_dir/lib $LDFLAGS"
682 AC_SEARCH_LIBS(luaL_openlibs, [lua-${lua_ver} lua${lua_ver} lua],
684 LUA_LIBS="-L$lua_dir/lib $ac_cv_search_luaL_openlibs -lm"
693 AC_WIRESHARK_POP_FLAGS
697 # AC_WIRESHARK_LIBPORTAUDIO_CHECK
699 AC_DEFUN([AC_WIRESHARK_LIBPORTAUDIO_CHECK],[
701 AC_WIRESHARK_PUSH_FLAGS
702 wireshark_save_LIBS="$LIBS"
704 if test "x$portaudio_dir" != "x"
707 # The user specified a directory in which libportaudio
708 # resides, so add the "include" subdirectory of that directory to
709 # the include file search path and the "lib" subdirectory
710 # of that directory to the library search path.
712 # XXX - if there's also a libportaudio in a directory that's
713 # already in CPPFLAGS or LDFLAGS, this won't make us find
714 # the version in the specified directory, as the compiler
715 # and/or linker will search that other directory before it
716 # searches the specified directory.
718 CPPFLAGS="$CPPFLAGS -I$portaudio_dir/include"
719 LDFLAGS="$LDFLAGS -L$portaudio_dir/lib"
721 LIBS="-lportaudio $LIBS"
724 # Make sure we have "portaudio.h". If we don't, it means we probably
725 # don't have libportaudio, so don't use it.
727 AC_CHECK_HEADERS(portaudio.h,,
729 if test "x$portaudio_dir" != "x"
732 # The user used "--with-portaudio=" to specify a directory
733 # containing libportaudio, but we didn't find the header file
734 # there; that either means they didn't specify the
735 # right directory or are confused about whether libportaudio
736 # is, in fact, installed. Report the error and give up.
738 AC_MSG_ERROR([libportaudio header not found in directory specified in --with-portaudio])
740 if test "x$want_portaudio" = "xyes"
743 # The user tried to force us to use the library, but we
744 # couldn't find the header file; report an error.
746 AC_MSG_ERROR(Header file portaudio.h not found.)
749 # We couldn't find the header file; don't use the
750 # library, as it's probably not present.
758 # Check whether we have the right version of portaudio
760 if test "x$want_portaudio" != "xno"
762 AC_CHECK_TYPE(PortAudioStream,
763 AC_DEFINE(PORTAUDIO_API_1, 1, [Define if we are using version of of the Portaudio library API]),
765 [#include <portaudio.h>])
768 if test "x$want_portaudio" != "xno"
771 # Well, we at least have the portaudio header file.
773 # let's check if the libs are there
776 PORTAUDIO_INCLUDES=""
778 AC_CHECK_LIB(portaudio, Pa_Initialize,
780 if test "x$portaudio_dir" != "x"
783 # Put the "-I" and "-L" flags for portaudio
784 # into PORTAUDIO_INCLUDES and PORTAUDIO_LIBS,
787 PORTAUDIO_LIBS="-L$portaudio_dir/lib -lportaudio"
788 PORTAUDIO_INCLUDES="-I$portaudio_dir/include"
790 PORTAUDIO_LIBS="-lportaudio"
792 AC_DEFINE(HAVE_LIBPORTAUDIO, 1, [Define to use libportaudio library])
795 # User requested --with-portaudio but it isn't available
796 if test "x$want_portaudio" = "xyes"
798 AC_MSG_ERROR(Linking with libportaudio failed.)
802 AC_SUBST(PORTAUDIO_LIBS)
803 AC_SUBST(PORTAUDIO_INCLUDES)
807 LIBS="$wireshark_save_LIBS"
808 AC_WIRESHARK_POP_FLAGS
813 # AC_WIRESHARK_C_ARES_CHECK
815 AC_DEFUN([AC_WIRESHARK_C_ARES_CHECK],
817 want_c_ares=defaultyes
819 if test "x$want_c_ares" = "xdefaultyes"; then
823 if test "x$want_c_ares" = "xyes"; then
824 AC_CHECK_LIB(cares, ares_init,
827 AC_DEFINE(HAVE_C_ARES, 1, [Define to use c-ares library])
831 AC_MSG_RESULT(not required)
837 # AC_WIRESHARK_LIBCAP_CHECK
839 AC_DEFUN([AC_WIRESHARK_LIBCAP_CHECK],
841 want_libcap=defaultyes
843 if test "x$want_libcap" = "xdefaultyes"; then
847 if test "x$want_libcap" = "xyes"; then
848 AC_CHECK_LIB(cap, cap_set_flag,
851 AC_DEFINE(HAVE_LIBCAP, 1, [Define to use the libcap library])
856 AC_MSG_RESULT(not required)
862 # AC_WIRESHARK_KRB5_CHECK
864 AC_DEFUN([AC_WIRESHARK_KRB5_CHECK],
866 AC_WIRESHARK_PUSH_FLAGS
867 wireshark_save_LIBS="$LIBS"
869 if test "x$krb5_dir" != "x"
872 # The user specified a directory in which kerberos resides,
873 # so add the "include" subdirectory of that directory to
874 # the include file search path and the "lib" subdirectory
875 # of that directory to the library search path.
877 # XXX - if there's also a kerberos in a directory that's
878 # already in CPPFLAGS or LDFLAGS, this won't make us find
879 # the version in the specified directory, as the compiler
880 # and/or linker will search that other directory before it
881 # searches the specified directory.
883 KRB5_CFLAGS="-I$krb5_dir/include"
884 ac_heimdal_version=`grep heimdal $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*heimdal.*$/HEIMDAL/'`
885 # MIT Kerberos moved krb5.h to krb5/krb5.h starting with release 1.5
886 ac_mit_version_olddir=`grep 'Massachusetts' $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*Massachusetts.*$/MIT/'`
887 ac_mit_version_newdir=`grep 'Massachusetts' $krb5_dir/include/krb5/krb5.h | head -n 1 | sed 's/^.*Massachusetts.*$/MIT/'`
888 ac_krb5_version="$ac_heimdal_version$ac_mit_version_olddir$ac_mit_version_newdir"
889 if test "x$ac_krb5_version" = "xHEIMDAL"
891 KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lasn1 $SSL_LIBS -lroken -lcrypt"
893 KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lk5crypto -lcom_err"
895 if test "x$ac_krb5_version" = "xMIT"
897 AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
900 AC_PATH_TOOL(KRB5_CONFIG, krb5-config)
901 if test -x "$KRB5_CONFIG"
903 KRB5_CFLAGS=`"$KRB5_CONFIG" --cflags`
904 KRB5_LIBS=`"$KRB5_CONFIG" --libs`
906 # If -lcrypto is in KRB5_FLAGS, we require it to build
907 # with Heimdal/MIT. We don't want to built with it by
908 # default, due to annoying license incompatibilities
909 # between the OpenSSL license and the GPL, so:
911 # if SSL_LIBS is set to a non-empty string, we
912 # remove -lcrypto from KRB5_LIBS and replace
915 # if SSL_LIBS is not set to a non-empty string
916 # we fail with an appropriate error message.
920 if test ! -z "$SSL_LIBS"
922 KRB5_LIBS=`echo $KRB5_LIBS | sed 's/-lcrypto//'`
923 KRB5_LIBS="$KRB5_LIBS $SSL_LIBS"
925 AC_MSG_ERROR([Kerberos library requires -lcrypto, so you must specify --with-ssl])
929 ac_krb5_version=`"$KRB5_CONFIG" --version | head -n 1 | sed -e 's/^.*heimdal.*$/HEIMDAL/' -e 's/^Kerberos .*$/MIT/' -e 's/^Solaris Kerberos .*$/MIT/'`
933 CPPFLAGS="$CPPFLAGS $KRB5_CFLAGS"
936 # Make sure we have "krb5.h". If we don't, it means we probably
937 # don't have kerberos, so don't use it.
939 AC_CHECK_HEADER(krb5.h,,
941 if test "x$krb5_dir" != "x"
944 # The user used "--with-krb5=" to specify a directory
945 # containing kerberos, but we didn't find the header file
946 # there; that either means they didn't specify the
947 # right directory or are confused about whether kerberos
948 # is, in fact, installed. Report the error and give up.
950 AC_MSG_ERROR([kerberos header not found in directory specified in --with-krb5])
952 if test "x$want_krb5" = "xyes"
955 # The user tried to force us to use the library, but we
956 # couldn't find the header file; report an error.
958 AC_MSG_ERROR(Header file krb5.h not found.)
961 # We couldn't find the header file; don't use the
962 # library, as it's probably not present.
967 AC_MSG_RESULT(No Heimdal or MIT header found - disabling dissection for some kerberos data in packet decoding)
972 if test "x$want_krb5" != "xno"
975 # Well, we at least have the krb5 header file.
976 # Check whether this is Heimdal or MIT.
978 AC_MSG_CHECKING(whether the Kerberos library is Heimdal or MIT)
979 if test "x$ac_krb5_version" = "xHEIMDAL" -o "x$ac_krb5_version" = "xMIT"
983 # Check whether we have krb5_kt_resolve - and whether
984 # we need to link with -lresolv when linking with
985 # the Kerberos library.
987 AC_MSG_RESULT($ac_krb5_version)
988 found_krb5_kt_resolve=no
989 for extras in "" "-lresolv"
991 LIBS="$KRB5_LIBS $extras $wireshark_save_LIBS"
994 AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve])
996 AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve (linking with $extras)])
1003 krb5_kt_resolve(0, 0, 0);
1007 # We found "krb5_kt_resolve()".
1010 if test -n "$extras"; then
1011 KRB5_LIBS="$KRB5_LIBS $extras"
1013 AC_DEFINE(HAVE_KERBEROS, 1, [Define to use kerberos])
1014 if test "x$ac_krb5_version" = "xHEIMDAL"
1016 AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1, [Define to use heimdal kerberos])
1017 elif test "x$ac_krb5_version" = "xMIT"
1019 AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos])
1021 found_krb5_kt_resolve=yes
1028 if test "$found_krb5_kt_resolve" = no
1031 # We didn't find "krb5_kt_resolve()" in the
1032 # Kerberos library, even when we tried linking
1033 # with -lresolv; we can't link with kerberos.
1035 if test "x$want_krb5" = "xyes"
1038 # The user tried to force us to use the library,
1039 # but we can't do so; report an error.
1041 AC_MSG_ERROR(Usable $ac_krb5_version not found)
1046 AC_MSG_RESULT(Usable $ac_krb5_version not found - disabling dissection for some kerberos data in packet decoding)
1053 # We can link with Kerberos; see whether krb5.h
1054 # defines KEYTYPE_ARCFOUR_56 (where "defines" means
1055 # "as a #define or as an enum member).
1057 AC_MSG_CHECKING([whether krb5.h defines KEYTYPE_ARCFOUR_56])
1067 printf("%u\n", KEYTYPE_ARCFOUR_56);
1073 AC_DEFINE(HAVE_KEYTYPE_ARCFOUR_56, 1, [Define if krb5.h defines KEYTYPE_ARCFOUR_56])
1081 # It's not Heimdal or MIT.
1084 if test "x$want_krb5" = "xyes"
1087 # The user tried to force us to use the library,
1088 # but we can't do so; report an error.
1090 AC_MSG_ERROR(Kerberos not found)
1095 AC_MSG_RESULT(Kerberos not found - disabling dissection for some kerberos data in packet decoding)
1103 # The user asked us not to use Kerberos, or they didn't
1104 # say whether they wanted us to use it but we found
1111 AC_SUBST(KRB5_CFLAGS)
1114 LIBS="$wireshark_save_LIBS"
1115 AC_WIRESHARK_POP_FLAGS
1119 # AC_WIRESHARK_GEOIP_CHECK
1121 AC_DEFUN([AC_WIRESHARK_GEOIP_CHECK],
1123 want_geoip=defaultyes
1125 if test "x$want_geoip" = "xdefaultyes"; then
1129 if test "x$want_geoip" = "xyes"; then
1130 AC_CHECK_LIB(GeoIP, GeoIP_new,
1133 AC_DEFINE(HAVE_GEOIP, 1, [Define to use GeoIP library])
1137 if test "x$have_good_geoip" = "xyes"; then
1138 AC_CHECK_LIB(GeoIP, GeoIP_country_name_by_ipnum_v6,
1140 AC_DEFINE(HAVE_GEOIP_V6, 1, [Define if GeoIP supports IPv6 (GeoIP 1.4.5 and later)])
1143 AC_CHECK_LIB(GeoIP, GeoIP_free,
1145 AC_DEFINE(HAVE_GEOIP_FREE, 1, [Define if GeoIP has GeoIP_free (not available upstream with 1.6.10 or earlier)])
1150 AC_MSG_RESULT(not required)
1155 # AC_WIRESHARK_LIBSSH_CHECK
1157 AC_DEFUN([AC_WIRESHARK_LIBSSH_CHECK],
1159 want_libssh=defaultyes
1161 if test "x$want_libssh" = "xdefaultyes"; then
1165 if test "x$want_libssh" = "xyes"; then
1166 AC_CHECK_LIB(ssh, ssh_new,
1169 AC_DEFINE(HAVE_LIBSSH, 1, [Define to use libssh library])
1170 have_good_libssh=yes
1173 AC_MSG_CHECKING([whether libssh >= 0.6.0 for sshdump, ciscodump])
1174 PKG_CHECK_EXISTS([libssh >= 0.6.0],
1177 AC_DEFINE(HAVE_LIBSSH_POINTSIX, 1, [Defined if libssh >= 0.6.0])
1178 have_libssh_pointsix=yes
1182 if test "x$have_libssh_pointsix" = "xyes"; then
1183 # ssh_userauth_agent exists only >= 0.6.0, but not on Windows
1184 # so check explicitly
1185 AC_CHECK_LIB(ssh, ssh_userauth_agent,
1187 AC_DEFINE(HAVE_SSH_USERAUTH_AGENT, 1, [Libssh library has ssh_userauth_agent])
1188 have_ssh_userauth_agent=yes
1193 AC_MSG_RESULT(not required)
1198 # AC_WIRESHARK_NGHTTP2_CHECK
1200 AC_DEFUN([AC_WIRESHARK_NGHTTP2_CHECK],
1202 want_nghttp2=defaultyes
1204 if test "x$want_nghttp2" = "xdefaultyes"; then
1208 if test "x$want_nghttp2" = "xyes"; then
1209 AC_CHECK_LIB(nghttp2, nghttp2_hd_inflate_new,
1211 AC_CHECK_HEADERS(nghttp2/nghttp2.h,
1213 NGHTTP2_LIBS=-lnghttp2
1214 AC_DEFINE(HAVE_NGHTTP2, 1, [Define to use nghttp2 library])
1215 have_good_nghttp2=yes
1221 AC_MSG_RESULT(not required)
1225 #AC_WIRESHARK_LDFLAGS_CHECK
1227 # $1 : ldflag(s) to test
1229 # We attempt to compile and link a test program with the specified linker
1230 # flag. The defined flag is added to LDFLAGS only if the link succeeds.
1232 AC_DEFUN([AC_WIRESHARK_LDFLAGS_CHECK],
1234 AC_MSG_CHECKING(whether we can add $LD_OPTION to LDFLAGS)
1235 AC_WIRESHARK_PUSH_FLAGS
1236 LDFLAGS="$LDFLAGS $LD_OPTION"
1237 can_add_to_ldflags=""
1240 AC_LANG_SOURCE([[int main() { return 0; }]])
1244 AX_APPEND_FLAG([$LD_OPTION], [WS_LDFLAGS])
1245 can_add_to_ldflags=yes
1249 can_add_to_ldflags=no
1251 AC_WIRESHARK_POP_FLAGS
1255 dnl Check whether, if you pass an unknown warning option to the
1256 dnl compiler, it fails or just prints a warning message and succeeds.
1257 dnl Set ac_wireshark_unknown_warning_option_error to the appropriate flag
1258 dnl to force an error if it would otherwise just print a warning message
1261 AC_DEFUN([AC_WIRESHARK_CHECK_UNKNOWN_WARNING_OPTION_ERROR],
1263 AC_MSG_CHECKING([whether the compiler fails when given an unknown warning option])
1264 AC_WIRESHARK_PUSH_FLAGS
1265 CFLAGS="$CFLAGS -Wxyzzy-this-will-never-succeed-xyzzy"
1270 AC_MSG_RESULT([no, adding -Werror=unknown-warning-option])
1272 # We're assuming this is clang, where
1273 # -Werror=unknown-warning-option is the appropriate
1274 # option to force the compiler to fail.
1276 ac_wireshark_unknown_warning_option_error="-Werror=unknown-warning-option"
1279 AC_MSG_RESULT([yes])
1281 AC_WIRESHARK_POP_FLAGS
1285 dnl Check whether, if you pass a valid-for-C-but-not-C++ option to the
1286 dnl compiler, it fails or just prints a warning message and succeeds.
1287 dnl Set ac_wireshark_non_cxx_warning_option_error to the appropriate flag
1288 dnl to force an error if it would otherwise just print a warning message
1291 AC_DEFUN([AC_WIRESHARK_CHECK_NON_CXX_WARNING_OPTION_ERROR],
1293 AC_MSG_CHECKING([whether the compiler fails when given an warning option not supported for C++])
1295 # Some C+ compilers warn about -Wmissing-prototypes, and some warn
1296 # about -Wmissing-declarations. Check both.
1299 AC_WIRESHARK_PUSH_FLAGS
1300 save_CXXFLAGS="$CXXFLAGS"
1301 for flag in -Wmissing-prototypes -Wmissing-declarations; do
1302 CXXFLAGS="$save_CXXFLAGS $flag"
1308 # We're assuming this is g++, where -Werror is the
1309 # appropriate option to force the compiler to fail.
1310 # Check whether it fails with -Werror.
1312 # NOTE: it's important to put -Werror *before*
1313 # the flag, otherwise, when it sees the flag,
1314 # it doesn't yet know that warnings should be
1315 # treated as errors, and doesn't treat the
1316 # "that's C-only" warning as an error.
1318 CXXFLAGS="$save_CXXFLAGS -Werror $flag"
1324 # No, so this option is actually OK
1325 # with our C++ compiler.
1327 # (We need an empty command here to
1328 # prevent some versions of autoconf
1329 # from generating a script with an
1330 # empty "then" clause for an if statement.)
1336 # Yes, so we need -Werror for the tests.
1338 ac_wireshark_non_cxx_warning_option_error="-Werror"
1343 AC_WIRESHARK_POP_FLAGS
1345 if test x$ac_wireshark_non_cxx_warning_option_error = x; then
1346 AC_MSG_RESULT([yes])
1348 AC_MSG_RESULT([no, adding -Werror])
1353 # AC_WIRESHARK_COMPILER_FLAGS_CHECK
1355 # $1 : flags to test
1356 # $2 : if supplied, C for C-only flags, CXX for C++-only flags
1357 # $3 : if supplied, a program to try to compile with the flag
1358 # and, if the compile fails when -Werror is turned on,
1359 # we don't add the flag - used for warning flags that
1360 # issue incorrect or non-useful warnings with some
1362 # $4 : must be supplied if $3 is supplied - a message describing
1363 # for what the test program is testing
1365 # The macro first determines if the compiler supports GCC-style flags.
1366 # Then it attempts to compile with the defined cflags. The defined
1367 # flags are added to WS_CHECKED_CFLAGS only if the compilation succeeds.
1368 # CFLAGS remains unchanged. can_add_to_cflags is set to "no" when the
1369 # flag is checked but unavailable. (Like-wise for CXXFLAGS.)
1371 # We do this because not all such options are necessarily supported by
1372 # the version of the particular compiler we're using.
1374 AC_DEFUN([AC_WIRESHARK_COMPILER_FLAGS_CHECK],
1376 can_add_to_cflags=""
1377 can_add_to_cxxflags=""
1378 if test "x$ac_supports_gcc_flags" = "xyes" ; then
1379 if test "$2" != CXX ; then
1381 # Not C++-only; if this can be added to the C compiler flags, add them.
1383 # If the option begins with "-W", add
1384 # $ac_wireshark_unknown_warning_option_error to make sure that
1385 # we'll get an error if it's an unknown warning option; not all
1386 # compilers treat unknown warning options as errors (I'm looking at
1389 # If the option begins with "-f" or "-m", add -Werror to make sure
1390 # that we'll get an error if we get "argument unused during compilation"
1391 # warnings, as those will either cause a failure for files compiled
1392 # with -Werror or annoying noise for files compiled without it.
1393 # (Yeah, you, clang.)
1395 AC_MSG_CHECKING(whether we can add $GCC_OPTION to CFLAGS)
1396 AC_WIRESHARK_PUSH_FLAGS
1397 if expr "x$GCC_OPTION" : "x-W.*" >/dev/null
1399 CFLAGS="$CFLAGS $ac_wireshark_unknown_warning_option_error $GCC_OPTION"
1400 elif expr "x$GCC_OPTION" : "x-f.*" >/dev/null
1402 CFLAGS="$CFLAGS -Werror $GCC_OPTION"
1403 elif expr "x$GCC_OPTION" : "x-m.*" >/dev/null
1405 CFLAGS="$CFLAGS -Werror $GCC_OPTION"
1407 CFLAGS="$CFLAGS $GCC_OPTION"
1411 AC_LANG_SOURCE([[int foo;]])
1415 can_add_to_cflags=yes
1417 # OK, do we have a test program? If so, check
1418 # whether it fails with this option and -Werror,
1419 # and, if so, don't include it.
1421 # We test arg 4 here because arg 3 is a program which
1422 # could contain quotes (breaking the comparison).
1424 if test "x$4" != "x" ; then
1425 CFLAGS="$CFLAGS -Werror"
1426 AC_MSG_CHECKING(whether $GCC_OPTION $4)
1428 [AC_LANG_SOURCE($3)],
1432 # Remove "force an error for a warning" options, if we
1433 # added them, by setting CFLAGS to the saved value plus
1434 # just the new option.
1436 AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS])
1437 if test "$CC" = "$CC_FOR_BUILD"; then
1439 # We're building the build tools with the same compiler
1440 # with which we're building Wireshark, so add the flags
1441 # to the flags for that compiler as well.
1443 AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS_FOR_BUILD])
1451 # Remove "force an error for a warning" options, if we
1452 # added them, by setting CFLAGS to the saved value plus
1453 # just the new option.
1455 AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS])
1456 if test "$CC" = "$CC_FOR_BUILD"; then
1458 # We're building the build tools with the same compiler
1459 # with which we're building Wireshark, so add the flags
1460 # to the flags for that compiler as well.
1462 AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS_FOR_BUILD])
1468 can_add_to_cflags=no
1470 AC_WIRESHARK_POP_FLAGS
1473 # Did we find a C++ compiler?
1475 if test "x$CXX" != "x" ; then
1477 # Yes. Is this option only for the C compiler?
1479 if test "$2" != C ; then
1481 # Not C-only; if this option can be added to the C++ compiler
1484 # If the option begins with "-W", add
1485 # $ac_wireshark_unknown_warning_option_error, as per the above, and
1486 # also add $ac_wireshark_non_cxx_warning_option_error, because at
1487 # lease some versions of g++ whine about -Wmissing-prototypes, the
1488 # fact that at least one of those versions refuses to warn about
1489 # function declarations without an earlier declaration nonwithstanding;
1490 # perhaps there's a reason not to warn about that with C++ even though
1491 # warning about it can be a Good Idea with C, but it's not obvious to
1494 # If the option begins with "-f" or "-m", add -Werror to make sure
1495 # that we'll get an error if we get "argument unused during compilation"
1496 # warnings, as those will either cause a failure for files compiled
1497 # with -Werror or annoying noise for files compiled without it.
1498 # (Yeah, you, clang++.)
1500 AC_MSG_CHECKING(whether we can add $GCC_OPTION to CXXFLAGS)
1501 AC_WIRESHARK_PUSH_FLAGS
1502 if expr "x$GCC_OPTION" : "x-W.*" >/dev/null
1504 CXXFLAGS="$CXXFLAGS $ac_wireshark_unknown_warning_option_error $ac_wireshark_non_cxx_warning_option_error $GCC_OPTION"
1505 elif expr "x$GCC_OPTION" : "x-f.*" >/dev/null
1507 CXXFLAGS="$CXXFLAGS -Werror $GCC_OPTION"
1508 elif expr "x$GCC_OPTION" : "x-m.*" >/dev/null
1510 CXXFLAGS="$CXXFLAGS -Werror $GCC_OPTION"
1512 CXXFLAGS="$CXXFLAGS $GCC_OPTION"
1517 AC_LANG_SOURCE([[int foo;]])
1521 can_add_to_cxxflags=yes
1523 # OK, do we have a test program? If so, check
1524 # whether it fails with this option and -Werror,
1525 # and, if so, don't include it.
1527 # We test arg 4 here because arg 3 is a program which
1528 # could contain quotes (breaking the comparison).
1530 if test "x$4" != "x" ; then
1531 CXXFLAGS="$CXXFLAGS -Werror"
1532 AC_MSG_CHECKING(whether $GCC_OPTION $4)
1534 [AC_LANG_SOURCE($3)],
1538 # Remove "force an error for a warning" options, if we
1539 # added them, by setting CXXFLAGS to the saved value plus
1540 # just the new option.
1542 AX_APPEND_FLAG([$GCC_OPTION], [WS_CXXFLAGS])
1549 # Remove "force an error for a warning" options, if we
1550 # added them, by setting CXXFLAGS to the saved value plus
1551 # just the new option.
1553 AX_APPEND_FLAG([$GCC_OPTION], [WS_CXXFLAGS])
1558 can_add_to_cxxflags=no
1560 AC_WIRESHARK_POP_FLAGS
1563 if test "(" "$can_add_to_cflags" = "yes" -a "$can_add_to_cxxflags" = "no" ")" \
1564 -o "(" "$can_add_to_cflags" = "no" -a "$can_add_to_cxxflags" = "yes" ")"
1567 # Confusingly, some C++ compilers like -Wmissing-prototypes but
1568 # don't like -Wmissing-declarations and others like
1569 # -Wmissing-declarations but don't like -Wmissing-prototypes,
1570 # the fact that the corresponding C compiler likes both. Don't
1573 if test "(" x$GCC_OPTION != x-Wmissing-prototypes ")" \
1574 -a "(" x$GCC_OPTION != x-Wmissing-declarations ")"
1576 AC_MSG_WARN([$CC and $CXX appear to be a mismatched pair])
1583 # AC_WIRESHARK_GCC_FORTIFY_SOURCE_CHECK
1585 # Checks if '-D_FORTIFY_SOURCE=...' is OK to use in CPPFLAGS.
1586 # Use '-D_FORTIFY_SOURCE=...' in CPPFLAGS only if the GCC 'optimization level' is > 0.
1587 # The use of '-D_FORTIFY_SOURCE=...' will cause a warning with at least some versions
1588 # of glibc if the GCC "optimization level" is 0 (default or -O or -O0)
1589 # when using GCC to compile a source file which references the macro definition.
1591 # See: http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html
1592 # See: http://sourceware.org/bugzilla/show_bug.cgi?id=13979
1594 # We'll use '-D_FORTIFY_SOURCE=2' only if there's no warning; Among other things this means
1595 # that the use of '-D_FORTIFY_SOURCE=2' with '-Werror' and '-O0' won't cause
1596 # the compiler to stop on error.
1597 # Assumption: CFLAGS already contains whatever optimization option including none) is
1601 AC_DEFUN([AC_WIRESHARK_GCC_FORTIFY_SOURCE_CHECK],
1603 if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then
1604 AC_MSG_CHECKING([whether -D_FORTIFY_SOURCE=2 can be used (without generating a warning)])
1605 AC_WIRESHARK_PUSH_FLAGS
1606 CFLAGS="$CFLAGS -Werror"
1607 CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2"
1615 AX_APPEND_FLAG([-D_FORTIFY_SOURCE=2], [WS_CPPFLAGS])
1620 AC_WIRESHARK_POP_FLAGS
1625 # AC_WIRESHARK_GCC_SYSTEM_INCLUDE
1627 # Replace -I include flag for -isystem in FLAGS argument
1629 AC_DEFUN([AC_WIRESHARK_GCC_SYSTEM_INCLUDE],
1631 if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then
1633 | sed -e 's/ *-I *\// -isystem\//g' -e 's/^ *//'`
1638 # PKG_WIRESHARK_CHECK_SYSTEM_MODULES
1640 AC_DEFUN([PKG_WIRESHARK_CHECK_SYSTEM_MODULES],
1642 PKG_CHECK_MODULES($@)
1643 AC_WIRESHARK_GCC_SYSTEM_INCLUDE($1_CFLAGS)
1646 # Based on AM_PATH_GTK in gtk-2.0.m4.
1648 dnl AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION([MODULE, MINIMUM-VERSION,
1649 dnl REQUESTED-MAJOR_VERSION, [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]])
1650 dnl Test for a particular Qt module, for a particular Qt major version,
1651 dnl and, if we find it add the flags and libraries for it to Qt_CFLAGS
1654 AC_DEFUN([AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION],
1664 # Version of the module we're checking for.
1667 min_qt_version=ifelse([$2], ,4.0.0,$2)
1676 # Version of the module we're checking for.
1679 min_qt_version=5.0.0
1683 AC_MSG_ERROR([Qt version $3 is not a known Qt version])
1687 pkg_config_module="${modprefix}$1"
1688 AC_MSG_CHECKING(for $pkg_config_module - version >= $min_qt_version)
1689 if $PKG_CONFIG --atleast-version $min_qt_version $pkg_config_module; then
1690 mod_version=`$PKG_CONFIG --modversion $pkg_config_module`
1691 AC_MSG_RESULT(yes (version $mod_version))
1692 mod_cflags=`$PKG_CONFIG --cflags $pkg_config_module`
1693 AC_WIRESHARK_GCC_SYSTEM_INCLUDE(mod_cflags)
1694 Qt_CFLAGS="$Qt_CFLAGS $mod_cflags"
1695 Qt_LIBS="$Qt_LIBS `$PKG_CONFIG --libs $pkg_config_module`"
1696 # Run Action-If-Found
1697 ifelse([$4], , :, [$4])
1700 # Run Action-If-Not-Found
1701 ifelse([$5], , :, [$5])
1705 dnl AC_WIRESHARK_QT_MODULE_CHECK([MODULE, MINIMUM-VERSION,
1706 dnl REQUESTED-MAJOR_VERSION, [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]])
1707 dnl Test for a particular Qt module and add the flags and libraries
1708 dnl for it to Qt_CFLAGS and Qt_LIBS.
1710 AC_DEFUN([AC_WIRESHARK_QT_MODULE_CHECK],
1713 # Prior to Qt 5, modules were named QtXXX.
1714 # In Qt 5, they're named Qt5XXX.
1715 # This will need to change to handle future major Qt releases.
1721 # Check for all versions of Qt we support.
1722 # Try the Qt 5 version first.
1742 AC_MSG_ERROR([Qt version $3 is not a known Qt version])
1746 for version in $versions
1748 AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION($1, $2,
1749 $version, [foundit=yes], [foundit=no])
1750 if test "x$foundit" = "xyes"; then
1755 if test "x$foundit" = "xyes"; then
1756 # Remember which version of Qt we found
1758 # Run Action-If-Found
1759 ifelse([$4], , :, [$4])
1761 # Run Action-If-Not-Found
1762 ifelse([$5], , :, [$5])
1766 AC_DEFUN([AC_WIRESHARK_QT_ADD_PIC_IF_NEEDED],
1769 AC_WIRESHARK_PUSH_FLAGS
1770 CPPFLAGS="$CPPFLAGS $Qt_CFLAGS"
1771 AC_MSG_CHECKING([whether Qt works without -fPIC])
1773 [AC_LANG_SOURCE([[#include <QtCore>]])],
1774 [AC_MSG_RESULT(yes)],
1777 AC_MSG_CHECKING([whether Qt works with -fPIC])
1778 CPPFLAGS="$CPPFLAGS -fPIC"
1780 [AC_LANG_SOURCE([[#include <QtCore>]])],
1783 Qt_CFLAGS="$Qt_CFLAGS -fPIC"
1787 AC_MSG_ERROR(Couldn't compile Qt without -fPIC nor with -fPIC)
1790 AC_WIRESHARK_POP_FLAGS
1794 dnl AC_WIRESHARK_QT_CHECK([MINIMUM-VERSION, REQUESTED-MAJOR_VERSION,
1795 dnl [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]])
1796 dnl Test for Qt and define Qt_CFLAGS and Qt_LIBS.
1798 AC_DEFUN([AC_WIRESHARK_QT_CHECK],
1800 qt_version_to_check="$2"
1803 # Check for the Core module; if we don't have that,
1804 # we don't have Qt. If we *do* have it, we know what
1805 # version it is, so only check for that version of
1808 AC_WIRESHARK_QT_MODULE_CHECK(Core, $1, $qt_version_to_check,
1810 qt_version_to_check=$qt_version
1811 QT_VERSION=$mod_version
1812 QT_VERSION_MAJOR=`echo "$QT_VERSION" | cut -f1 -d.`
1813 QT_VERSION_MINOR=`echo "$QT_VERSION" | cut -f2 -d.`
1814 QT_VERSION_MICRO=`echo "$QT_VERSION" | cut -f3 -d.`
1816 # Qt 5.7 and later requires C++11
1817 AS_IF([test $QT_VERSION_MAJOR -eq 5 -a $QT_VERSION_MINOR -ge 7],
1818 [AS_IF([test "$HAVE_CXX11" -eq 0], [AC_MSG_ERROR([Qt 5.7 and later requires C++11])])])
1823 if test x"$no_qt" = x ; then
1825 # We need the Gui module as well.
1827 AC_WIRESHARK_QT_MODULE_CHECK(Gui, $1, $qt_version_to_check, ,
1831 if test x"$no_qt" = x ; then
1833 # Qt 5.0 appears to move the widgets out of Qt GUI
1834 # to Qt Widgets; look for the Widgets module, but
1835 # don't fail if we don't have it.
1837 AC_WIRESHARK_QT_MODULE_CHECK(Widgets, $1, $qt_version_to_check)
1840 # Qt 5.0 also appears to move the printing support into
1841 # the Qt PrintSupport module.
1843 AC_WIRESHARK_QT_MODULE_CHECK(PrintSupport, $1, $qt_version_to_check)
1846 # Qt 5.0 added multimedia in the Qt
1847 # Multimedia module.
1849 have_qt_multimedia_lib=no
1850 AC_WIRESHARK_QT_MODULE_CHECK(Multimedia, $1, $qt_version_to_check,
1851 have_qt_multimedia_lib=yes
1852 AC_DEFINE(QT_MULTIMEDIA_LIB, 1, [Define if we have QtMultimedia]))
1855 # While we're at it, look for QtMacExtras. (Presumably
1856 # if we're not building for macOS, it won't be present.)
1858 # XXX - is there anything in QtX11Extras or QtWinExtras
1859 # that we should be using?
1861 AC_WIRESHARK_QT_MODULE_CHECK(MacExtras, $1, $qt_version_to_check,
1862 AC_DEFINE(QT_MACEXTRAS_LIB, 1, [Define if we have QtMacExtras]))
1864 AC_WIRESHARK_QT_ADD_PIC_IF_NEEDED
1866 # Run Action-If-Found
1867 ifelse([$3], , :, [$3])
1869 # Run Action-If-Not-Found
1870 ifelse([$4], , :, [$4])
1875 dnl AC_WIRESHARK_QT_TOOL_CHECK([TOOLPATHVAR, TOOL, REQUESTED-MAJOR_VERSION])
1876 dnl Test for a particular Qt tool for some specific version of Qt
1878 AC_DEFUN([AC_WIRESHARK_QT_TOOL_CHECK],
1881 # At least in some versions of Debian/Ubuntu, and perhaps
1882 # other OSes, the Qt build tools are just links to a
1883 # program called "qtchooser", and even if you want to
1884 # build with Qt 5, running the tool might give you the
1885 # Qt 4 version of the tool unless you run the tool with
1888 # So we look for qtchooser and, if we find it, use the
1889 # -qt={version} argument, otherwise we look for particular
1890 # tool versions using tool name suffixes.
1892 AC_PATH_PROG(QTCHOOSER, qtchooser)
1893 if test ! -z "$QTCHOOSER"; then
1895 # We found qtchooser; we assume that means that
1896 # the tool is linked to qtchooser, so that we
1897 # can run it with the -qt={version} flag to get
1898 # the appropriate version of the tool.
1900 AC_PATH_PROG($1, $2)
1901 if test "x$$1" = x; then
1903 # We can't build Qt Wireshark without that
1906 AC_MSG_ERROR(I couldn't find $2; make sure it's installed and in your path)
1910 # Add the -qt={version} argument to it.
1912 $1="$$1 -qt=$qt_version"
1915 # Annoyingly, on some Linux distros (e.g. Debian)
1916 # the Qt 5 tools have no suffix and the Qt 4 tools
1917 # have suffix -qt4. On other distros (e.g. openSUSE)
1918 # the Qt 5 tools have suffix -qt5 and the Qt 4 tools
1921 # So we check for the tool first with the -qtN suffix
1922 # and then with no suffix.
1924 AC_PATH_PROGS($1, [$2-qt$qt_version $2])
1925 if test "x$$1" = x; then
1927 # We can't build Qt Wireshark without that
1930 AC_MSG_ERROR(I couldn't find $2-qt$qt_version or $2; make sure it's installed and in your path)
1935 AC_DEFUN([AC_WIRESHARK_QT_TOOL_CHECK_LRELEASE],
1937 AC_WIRESHARK_QT_TOOL_CHECK(LRELEASE, lrelease, $2)
1938 AC_MSG_CHECKING(whether lrelease -version works)
1939 lrelease_version=`$LRELEASE -version 2>&AS_MESSAGE_LOG_FD`
1940 AS_IF([test $? -ne 0],
1943 AC_MSG_ERROR([$LRELEASE -version returned non-zero exit status])
1945 AC_MSG_RESULT([ok, $lrelease_version])
1949 # AC_WIRESHARK_LZ4_CHECK
1951 AC_DEFUN([AC_WIRESHARK_LZ4_CHECK],
1953 AC_WIRESHARK_PUSH_FLAGS
1955 if test "x$lz4_dir" != "x"
1958 # The user specified a directory in which lz4 resides,
1959 # so add the "include" subdirectory of that directory to
1960 # the include file search path and the "lib" subdirectory
1961 # of that directory to the library search path.
1963 # XXX - if there's also a lz4 in a directory that's
1964 # already in CPPFLAGS or LDFLAGS, this won't make us find
1965 # the version in the specified directory, as the compiler
1966 # and/or linker will search that other directory before it
1967 # searches the specified directory.
1969 LZ4_CFLAGS="-I$lz4_dir/include"
1973 # Make sure we have "lz4.h". If we don't, it means we probably
1974 # don't have lz4, so don't use it.
1976 AC_CHECK_HEADER(lz4.h,,
1978 if test "x$lz4_dir" != "x"
1981 # The user used "--with-lz4=" to specify a directory
1982 # containing lz4, but we didn't find the header file
1983 # there; that either means they didn't specify the
1984 # right directory or are confused about whether lz4
1985 # is, in fact, installed. Report the error and give up.
1987 AC_MSG_ERROR([lz4 header not found in directory specified in --with-lz4])
1989 if test "x$want_lz4" = "xyes"
1992 # The user tried to force us to use the library, but we
1993 # couldn't find the header file; report an error.
1995 AC_MSG_ERROR(Header file lz4.h not found.)
1998 # We couldn't find the header file; don't use the
1999 # library, as it's probably not present.
2006 if test "x$want_lz4" != "xno"
2009 # Well, we at least have the lz4 header file.
2010 # We link with lz4 to support uncompression of
2014 ac_save_LIBS="$LIBS"
2015 LIBS="$LZ4_LIBS $LIBS"
2016 AC_DEFINE(HAVE_LZ4, 1, [Define to use lz4 library])
2018 # Check for "LZ4_decompress_safe()" in lz4, which we need
2019 # in order to read compressed capture files.
2021 AC_CHECK_FUNCS(LZ4_decompress_safe)
2022 LIBS="$ac_save_LIBS"
2025 AC_WIRESHARK_POP_FLAGS
2029 # AC_WIRESHARK_SNAPPY_CHECK
2031 AC_DEFUN([AC_WIRESHARK_SNAPPY_CHECK],
2033 AC_WIRESHARK_PUSH_FLAGS
2035 if test "x$snappy_dir" != "x"
2038 # The user specified a directory in which snappy resides,
2039 # so add the "include" subdirectory of that directory to
2040 # the include file search path and the "lib" subdirectory
2041 # of that directory to the library search path.
2043 # XXX - if there's also a snappy in a directory that's
2044 # already in CPPFLAGS or LDFLAGS, this won't make us find
2045 # the version in the specified directory, as the compiler
2046 # and/or linker will search that other directory before it
2047 # searches the specified directory.
2049 SNAPPY_CFLAGS="-I$snappy_dir/include"
2053 # Make sure we have "snappy-c.h". If we don't, it means we probably
2054 # don't have snappy, so don't use it.
2056 AC_CHECK_HEADER(snappy-c.h,,
2058 if test "x$snappy_dir" != "x"
2061 # The user used "--with-snappy=" to specify a directory
2062 # containing snappy, but we didn't find the header file
2063 # there; that either means they didn't specify the
2064 # right directory or are confused about whether snappy
2065 # is, in fact, installed. Report the error and give up.
2067 AC_MSG_ERROR([snappy-c.header not found in directory specified in --with-snappy])
2069 if test "x$want_snappy" = "xyes"
2072 # The user tried to force us to use the library, but we
2073 # couldn't find the header file; report an error.
2075 AC_MSG_ERROR(Header file snappy-c.h not found.)
2078 # We couldn't find the header file; don't use the
2079 # library, as it's probably not present.
2086 if test "x$want_snappy" != "xno"
2089 # Well, we at least have the snappy-c.header file.
2090 # We link with snappy to support uncompression of
2091 # compressed CQL traffic.
2093 SNAPPY_LIBS=-lsnappy
2094 ac_save_LIBS="$LIBS"
2095 LIBS="$SNAPPY_LIBS $LIBS"
2096 AC_DEFINE(HAVE_SNAPPY, 1, [Define to use snappy library])
2098 # Check for "snappy_uncompress()" in snappy, which we need
2099 # in order to read compressed capture files.
2101 AC_CHECK_FUNCS(snappy_uncompress)
2102 LIBS="$ac_save_LIBS"
2105 AC_WIRESHARK_POP_FLAGS