dnl Macros that test for specific features. dnl This file is part of the Autoconf packaging for Wireshark. dnl Copyright (C) 1998-2000 by Gerald Combs. dnl dnl This program is free software; you can redistribute it and/or modify dnl it under the terms of the GNU General Public License as published by dnl the Free Software Foundation; either version 2, or (at your option) dnl any later version. dnl dnl This program is distributed in the hope that it will be useful, dnl but WITHOUT ANY WARRANTY; without even the implied warranty of dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the dnl GNU General Public License for more details. dnl dnl You should have received a copy of the GNU General Public License dnl along with this program; if not, write to the Free Software dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA dnl 02111-1307, USA. dnl dnl As a special exception, the Free Software Foundation gives unlimited dnl permission to copy, distribute and modify the configure scripts that dnl are the output of Autoconf. You need not follow the terms of the GNU dnl General Public License when using or distributing such scripts, even dnl though portions of the text of Autoconf appear in them. The GNU dnl General Public License (GPL) does govern all other use of the material dnl that constitutes the Autoconf program. dnl dnl Certain portions of the Autoconf source text are designed to be copied dnl (in certain cases, depending on the input) into the output of dnl Autoconf. We call these the "data" portions. The rest of the Autoconf dnl source text consists of comments plus executable code that decides which dnl of the data portions to output in any given case. We call these dnl comments and executable code the "non-data" portions. Autoconf never dnl copies any of the non-data portions into its output. dnl dnl This special exception to the GPL applies to versions of Autoconf dnl released by the Free Software Foundation. When you make and dnl distribute a modified version of Autoconf, you may extend this special dnl exception to the GPL to apply to your modified version as well, *unless* dnl your modified version has the potential to copy into its output some dnl of the text that was the non-data portion of the version that you started dnl with. (In other words, unless your change moves or copies text from dnl the non-data portions to the data portions.) If your modification has dnl such potential, you must delete any notice of this special exception dnl to the GPL from your modified version. dnl dnl Written by David MacKenzie, with help from dnl Franc,ois Pinard, Karl Berry, Richard Pixley, Ian Lance Taylor, dnl Roland McGrath, Noah Friedman, david d zuhn, and many others. # # AC_WIRESHARK_ADD_DASH_L # # Add to the variable specified as the first argument a "-L" flag for the # directory specified as the second argument, and, on Solaris, add a # "-R" flag for it as well. # # XXX - IRIX, and other OSes, may require some flag equivalent to # "-R" here. # AC_DEFUN([AC_WIRESHARK_ADD_DASH_L], [AX_APPEND_FLAG(-L$2, $1) case "$host_os" in solaris*) AX_APPEND_FLAG(-R$2, $1) ;; esac ]) # # AC_WIRESHARK_PUSH_FLAGS # # Push our flags to CFLAGS/etc. # AC_DEFUN([AC_WIRESHARK_PUSH_FLAGS], [ ac_ws_CPPLAGS_saved="$CPPFLAGS" ac_ws_CFLAGS_saved="$CFLAGS" ac_ws_CXXFLAGS_saved="$CXXFLAGS" ac_ws_LDFLAGS_saved="$LDFLAGS" CPPFLAGS="$WS_CPPFLAGS $CPPFLAGS" CFLAGS="$WS_CFLAGS $CFLAGS" CXXFLAGS="$WS_CXXFLAGS $CXXFLAGS" LDFLAGS="$WS_LDFLAGS $LDFLAGS" ]) # # AC_WIRESHARK_POP_FLAGS # # Restore user build flags. # AC_DEFUN([AC_WIRESHARK_POP_FLAGS], [ CPPFLAGS="$ac_ws_CPPLAGS_saved" CFLAGS="$ac_ws_CFLAGS_saved" CXXFLAGS="$ac_ws_CXXFLAGS_saved" LDFLAGS="$ac_ws_LDFLAGS_saved" ]) # # AC_WIRESHARK_BREAKLOOP_TRY_LINK # AC_DEFUN([AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK], [ AC_LINK_IFELSE( [ AC_LANG_SOURCE( [[ # include int main(void) { pcap_t *pct = NULL; pcap_breakloop(pct); return 0; } ]]) ], [ ws_breakloop_compiled=yes ], [ ws_breakloop_compiled=no ]) ]) # # AC_WIRESHARK_PCAP_CHECK # AC_DEFUN([AC_WIRESHARK_PCAP_CHECK], [ AC_WIRESHARK_PUSH_FLAGS if test -z "$pcap_dir" then # Pcap header checks # XXX need to set a var AC_CHECK_HEADER(pcap.h,,) # # The user didn't specify a directory in which libpcap resides. # First, look for a pcap-config script. # AC_PATH_TOOL(PCAP_CONFIG, pcap-config) if test -n "$PCAP_CONFIG" ; then # # Found it. # # Now check whether it's the libpcap 1.0 version, which # put a space after "-L" - on some platforms, that doesn't # work. # AC_MSG_CHECKING(for broken pcap-config) case "`\"$PCAP_CONFIG\" --libs`" in "-L "*) # # Space after -L. Pretend pcap-config doesn't exist. # AC_MSG_RESULT(yes) PCAP_CONFIG="" ;; *) # # No space after -L. # AC_MSG_RESULT(no) ;; esac fi if test -n "$PCAP_CONFIG" ; then # # Found it, and it's usable; use it to get the include flags # for libpcap. # CPPFLAGS="$CPPFLAGS `\"$PCAP_CONFIG\" --cflags`" else # # Didn't find it; we have to look for libpcap ourselves. # We assume that the current library search path will work, # but we may have to look for the header in a "pcap" # subdirectory of "/usr/include" or "/usr/local/include", # as some systems apparently put "pcap.h" in a "pcap" # subdirectory, and we also check "$prefix/include" - and # "$prefix/include/pcap", in case $prefix is set to # "/usr/include" or "/usr/local/include". # # XXX - should we just add "$prefix/include" to the include # search path and "$prefix/lib" to the library search path? # AC_MSG_CHECKING(for extraneous pcap header directories) found_pcap_dir="" pcap_dir_list="/usr/local/include/pcap /usr/include/pcap $prefix/include/pcap $prefix/include" for pcap_dir in $pcap_dir_list do if test -d $pcap_dir ; then if test x$pcap_dir != x/usr/include -a x$pcap_dir != x/usr/local/include ; then CPPFLAGS="$CPPFLAGS -I$pcap_dir" fi found_pcap_dir=" $found_pcap_dir -I$pcap_dir" break fi done if test "$found_pcap_dir" != "" ; then AC_MSG_RESULT(found --$found_pcap_dir added to CFLAGS) else AC_MSG_RESULT(not found) fi fi else # # The user specified a directory in which libpcap resides, # so add the "include" subdirectory of that directory to # the include file search path and the "lib" subdirectory # of that directory to the library search path. # # XXX - if there's also a libpcap in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # CPPFLAGS="$CPPFLAGS -I$pcap_dir/include" AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $pcap_dir/lib) fi # Pcap header check AC_CHECK_HEADER(pcap.h,, AC_MSG_ERROR([[Header file pcap.h not found; if you installed libpcap from source, did you also do \"make install-incl\", and if you installed a binary package of libpcap, is there also a developer's package of libpcap, and did you also install that package?]])) if test -n "$PCAP_CONFIG" ; then # # We have pcap-config; we assume that means we have libpcap # installed and that pcap-config will tell us whatever # libraries libpcap needs. # if test x$enable_static = xyes; then PCAP_LIBS="`\"$PCAP_CONFIG\" --libs --static`" else PCAP_LIBS="`\"$PCAP_CONFIG\" --libs`" fi AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library]) else # # Check to see if we find "pcap_open_live" in "-lpcap". # Also check for various additional libraries that libpcap might # require. # AC_CHECK_LIB(pcap, pcap_open_live, [ PCAP_LIBS=-lpcap AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library]) ], [ ac_wireshark_extras_found=no ac_save_LIBS="$LIBS" for extras in "-lcfg -lodm" "-lpfring" do AC_MSG_CHECKING([for pcap_open_live in -lpcap with $extras]) LIBS="-lpcap $extras $ac_save_LIBS" # # XXX - can't we use AC_CHECK_LIB here? # AC_TRY_LINK( [ # include ], [ pcap_open_live(NULL, 0, 0, 0, NULL); ], [ ac_wireshark_extras_found=yes AC_MSG_RESULT([yes]) PCAP_LIBS="-lpcap $extras" AC_DEFINE(HAVE_LIBPCAP, 1, [Define to use libpcap library]) ], [ AC_MSG_RESULT([no]) ]) if test x$ac_wireshark_extras_found = xyes then break fi done if test x$ac_wireshark_extras_found = xno then AC_MSG_ERROR([Can't link with library libpcap.]) fi LIBS=$ac_save_LIBS ]) fi AC_SUBST(PCAP_LIBS) # # Check whether various variables and functions are defined by # libpcap. # ac_save_LIBS="$LIBS" LIBS="$PCAP_LIBS $LIBS" AC_CHECK_FUNCS(pcap_open_dead pcap_freecode) # # pcap_breakloop may be present in the library but not declared # in the pcap.h header file. If it's not declared in the header # file, attempts to use it will get warnings, and, if we're # building with warnings treated as errors, that warning will # cause compilation to fail. # # We are therefore first testing whether the function is present # and then, if we're compiling with warnings as errors, testing # whether it is usable. It is usable if it compiles without # a -Wimplicit warning (the "compile with warnings as errors" # option requires GCC). If it is not usable, we fail and tell # the user that the pcap.h header needs to be updated. # # Ceteris paribus, this should only happen with Mac OS X 10.3[.x] which # can have an up-to-date pcap library without the corresponding pcap # header. # # However, it might also happen on some others OSes with some erroneous # system manipulations where multiple versions of libpcap might co-exist # e.g. hand made symbolic link from libpcap.so -> libpcap.so.0.8 but # having the pcap header version 0.7. # AC_MSG_CHECKING([whether pcap_breakloop is present]) ac_CFLAGS_saved="$CFLAGS" AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK if test "x$ws_breakloop_compiled" = "xyes"; then AC_MSG_RESULT(yes) AC_DEFINE(HAVE_PCAP_BREAKLOOP, 1, [Define if pcap_breakloop is known]) if test "x$with_warnings_as_errors" = "xyes"; then AC_MSG_CHECKING([whether pcap_breakloop is usable]) CFLAGS="$CFLAGS -Werror -Wimplicit" AC_WIRESHARK_PCAP_BREAKLOOP_TRY_LINK if test "x$ws_breakloop_compiled" = "xyes"; then AC_MSG_RESULT(yes) else AC_MSG_RESULT(no) AC_MSG_ERROR( [Your pcap library is more recent than your pcap header. As you are building with compiler warnings treated as errors, Wireshark won't be able to use functions not declared in that header. If you wish to build with compiler warnings treated as errors, You should install a newer version of the header file.]) fi CFLAGS="$ac_CFLAGS_saved" fi else AC_MSG_RESULT(no) fi # # Later versions of Mac OS X 10.3[.x] ship a pcap.h that # doesn't define pcap_if_t but ship an 0.8[.x] libpcap, # so the library has "pcap_findalldevs()", but pcap.h # doesn't define "pcap_if_t" so you can't actually *use* # "pcap_findalldevs()". # # That even appears to be true of systems shipped with # 10.3.4, so it doesn't appear only to be a case of # Software Update not updating header files. # # (You can work around this by installing the 0.8 header # files.) # AC_CACHE_CHECK([whether pcap_findalldevs is present and usable], [ac_cv_func_pcap_findalldevs], [ AC_LINK_IFELSE( [ AC_LANG_SOURCE( [[ #include int main() { pcap_if_t *devpointer; char errbuf[1]; pcap_findalldevs(&devpointer, errbuf); } ]]) ], [ ac_cv_func_pcap_findalldevs=yes ], [ ac_cv_func_pcap_findalldevs=no ]) ]) # # Don't check for other new routines that showed up after # "pcap_findalldevs()" if we don't have a usable # "pcap_findalldevs()", so we don't end up using them if the # "pcap.h" is crufty and old and doesn't declare them. # if test $ac_cv_func_pcap_findalldevs = "yes" ; then AC_DEFINE(HAVE_PCAP_FINDALLDEVS, 1, [Define to 1 if you have the `pcap_findalldevs' function and a pcap.h that declares pcap_if_t.]) AC_CHECK_FUNCS(pcap_datalink_val_to_name pcap_datalink_name_to_val) AC_CHECK_FUNCS(pcap_datalink_val_to_description) AC_CHECK_FUNCS(pcap_list_datalinks pcap_set_datalink pcap_lib_version) AC_CHECK_FUNCS(pcap_get_selectable_fd pcap_free_datalinks) AC_CHECK_FUNC(pcap_create, [ AC_DEFINE(HAVE_PCAP_CREATE, 1, [Define to 1 if you have the `pcap_create' function.]) AC_DEFINE(CAN_SET_CAPTURE_BUFFER_SIZE, 1, [Define to 1 if the capture buffer size can be set.]) ]) AC_CHECK_FUNCS(bpf_image pcap_set_tstamp_precision) fi AC_WIRESHARK_POP_FLAGS LIBS="$ac_save_LIBS" ]) AC_DEFUN([AC_WIRESHARK_PCAP_REMOTE_CHECK], [ ac_save_LIBS="$LIBS" LIBS="$PCAP_LIBS $LIBS" AC_DEFINE(HAVE_REMOTE, 1, [Define to 1 to enable remote capturing feature in WinPcap library]) AC_CHECK_FUNCS(pcap_open) if test $ac_cv_func_pcap_open = "yes" ; then AC_DEFINE(HAVE_PCAP_REMOTE, 1, [Define to 1 if you have WinPcap remote capturing support and prefer to use these new API features.]) fi AC_CHECK_FUNCS(pcap_setsampling) LIBS="$ac_save_LIBS" ]) # # AC_WIRESHARK_ZLIB_CHECK # AC_DEFUN([AC_WIRESHARK_ZLIB_CHECK], [ AC_WIRESHARK_PUSH_FLAGS if test "x$zlib_dir" != "x" then # # The user specified a directory in which zlib resides, # so add the "include" subdirectory of that directory to # the include file search path and the "lib" subdirectory # of that directory to the library search path. # # XXX - if there's also a zlib in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # CPPFLAGS="$CPPFLAGS -I$zlib_dir/include" AC_WIRESHARK_ADD_DASH_L(LDFLAGS, $zlib_dir/lib) fi # # Make sure we have "zlib.h". If we don't, it means we probably # don't have zlib, so don't use it. # AC_CHECK_HEADER(zlib.h,, [ if test "x$zlib_dir" != "x" then # # The user used "--with-zlib=" to specify a directory # containing zlib, but we didn't find the header file # there; that either means they didn't specify the # right directory or are confused about whether zlib # is, in fact, installed. Report the error and give up. # AC_MSG_ERROR([zlib header not found in directory specified in --with-zlib]) else if test "x$want_zlib" = "xyes" then # # The user tried to force us to use the library, but we # couldn't find the header file; report an error. # AC_MSG_ERROR(Header file zlib.h not found.) else # # We couldn't find the header file; don't use the # library, as it's probably not present. # want_zlib=no fi fi ]) if test "x$want_zlib" != "xno" then # # Well, we at least have the zlib header file. # We link with zlib to support uncompression of # gzipped network traffic, e.g. in an HTTP request # or response body. # if test "x$zlib_dir" != "x" then WS_CPPFLAGS="$WS_CPPFLAGS -I$zlib_dir/include" AC_WIRESHARK_ADD_DASH_L(WS_LDFLAGS, $zlib_dir/lib) fi LIBS="-lz $LIBS" AC_DEFINE(HAVE_ZLIB, 1, [Define to use zlib library]) # # Check for "inflatePrime()" in zlib, which we need # in order to read compressed capture files. # AC_CHECK_FUNCS(inflatePrime) if test "x$ac_cv_func_inflatePrime" = "xyes" ; then # # Now check for "inflatePrime()" in zlib when # linking with the linker flags for GTK+ # applications; people often grab XFree86 source # and build and install it on their systems, # and they appear sometimes to misconfigure # XFree86 so that, even on systems with zlib, # it assumes there is no zlib, so the XFree86 # build process builds and installs its # own zlib in the X11 library directory. # # The zlib in at least some versions of XFree86 # is an older version that may lack "inflatePrime()", # and that's the zlib with which Wireshark gets # linked, so the build of Wireshark fails. # AC_MSG_CHECKING([for inflatePrime missing when linking with X11]) AC_TRY_LINK_FUNC(inflatePrime, AC_MSG_RESULT(no), [ AC_MSG_RESULT(yes) AC_MSG_ERROR(old zlib found when linking with X11 - get rid of old zlib.) ]) fi fi AC_WIRESHARK_POP_FLAGS ]) # # AC_WIRESHARK_LIBLUA_CHECK # # Sets $have_lua to yes or no. # If it's yes, it also sets $LUA_CFLAGS and $LUA_LIBS. AC_DEFUN([AC_WIRESHARK_LIBLUA_CHECK],[ AC_WIRESHARK_PUSH_FLAGS if test "x$want_lua_dir" = "x" then # The user didn't tell us where to find Lua. Let's go look for it. # First, try the standard (pkg-config) way. # Unfortunately Lua's pkg-config file isn't standardly named. # Some distributions allow installation of multiple versions of # Lua at the same time. On such systems each version has its # own package name. # # We use a for loop instead of giving all the package names to # PKG_CHECK_MODULES because doing the latter doesn't appear to # work reliably (some package names are not searched for). for pkg in "lua < 5.3" lua5.2 lua-5.2 lua52 lua5.1 lua-5.1 lua51 lua5.0 lua-5.0 lua50 do AC_MSG_CHECKING(if you have $pkg) PKG_CHECK_EXISTS($pkg, [ AC_MSG_RESULT(yes) have_lua=yes ], [ AC_MSG_RESULT(no) ]) if test "x$have_lua" = "xyes" then PKG_WIRESHARK_CHECK_SYSTEM_MODULES(LUA, $pkg) CPPFLAGS="$LUA_CFLAGS $CPPFLAGS" AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h) break fi done fi if test "x$have_lua" != "xyes" then # We don't have pkg-config or the user specified the path to # Lua (in $want_lua_dir). # Let's look for the header file. AC_MSG_CHECKING(for the location of lua.h) if test "x$want_lua_dir" = "x" then # The user didn't tell us where to look so we'll look in some # standard locations. want_lua_dir="/usr/local /usr $prefix" fi for dir in $want_lua_dir do if test -r "$dir/include/lua.h" then header_dir="$dir/include" lua_dir=$dir break fi for ver in 5.2 52 5.1 51 5.0 50 do if test -r "$dir/include/lua$ver/lua.h" then header_dir="$dir/include/lua$ver" lua_dir=$dir break fi done done if test "x$header_dir" = "x" then have_lua=no AC_MSG_RESULT(not found) else AC_MSG_RESULT($header_dir) AC_MSG_CHECKING(the Lua version) lua_ver=`$AWK AS_ESCAPE('/LUA_VERSION_NUM/ { print $NF; }' $header_dir/lua.h | sed 's/0/./')` if test "x$lua_ver" = "x5.3" then # Wireshark doesn't compile with Lua 5.3 today AC_MSG_RESULT($lua_ver - disabling Lua support) have_lua=no else AC_MSG_RESULT($lua_ver) CPPFLAGS="$CPPFLAGS -I$header_dir" AC_CHECK_HEADERS(lua.h lualib.h lauxlib.h, , [ have_lua=no ]) fi if test "x$have_lua" = "x" then # Set LUA_CFLAGS LUA_CFLAGS="-I$header_dir" # We have the header files and they work. Now let's check if we # have the library and it works. # # XXX - if there's also a liblua in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # # XXX - lib64? LDFLAGS="-L$lua_dir/lib $LDFLAGS" AC_SEARCH_LIBS(luaL_openlibs, [lua-${lua_ver} lua${lua_ver} lua], [ LUA_LIBS="-L$lua_dir/lib $ac_cv_search_luaL_openlibs -lm" have_lua=yes ],[ have_lua=no ], -lm) fi fi fi AC_WIRESHARK_POP_FLAGS ]) # # AC_WIRESHARK_LIBPORTAUDIO_CHECK # AC_DEFUN([AC_WIRESHARK_LIBPORTAUDIO_CHECK],[ AC_WIRESHARK_PUSH_FLAGS wireshark_save_LIBS="$LIBS" if test "x$portaudio_dir" != "x" then # # The user specified a directory in which libportaudio # resides, so add the "include" subdirectory of that directory to # the include file search path and the "lib" subdirectory # of that directory to the library search path. # # XXX - if there's also a libportaudio in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # CPPFLAGS="$CPPFLAGS -I$portaudio_dir/include" LDFLAGS="$LDFLAGS -L$portaudio_dir/lib" fi LIBS="-lportaudio $LIBS" # # Make sure we have "portaudio.h". If we don't, it means we probably # don't have libportaudio, so don't use it. # AC_CHECK_HEADERS(portaudio.h,, [ if test "x$portaudio_dir" != "x" then # # The user used "--with-portaudio=" to specify a directory # containing libportaudio, but we didn't find the header file # there; that either means they didn't specify the # right directory or are confused about whether libportaudio # is, in fact, installed. Report the error and give up. # AC_MSG_ERROR([libportaudio header not found in directory specified in --with-portaudio]) else if test "x$want_portaudio" = "xyes" then # # The user tried to force us to use the library, but we # couldn't find the header file; report an error. # AC_MSG_ERROR(Header file portaudio.h not found.) else # # We couldn't find the header file; don't use the # library, as it's probably not present. # want_portaudio=no fi fi ]) # # Check whether we have the right version of portaudio # if test "x$want_portaudio" != "xno" then AC_CHECK_TYPE(PortAudioStream, AC_DEFINE(PORTAUDIO_API_1, 1, [Define if we are using version of of the Portaudio library API]), , [#include ]) fi if test "x$want_portaudio" != "xno" then # # Well, we at least have the portaudio header file. # # let's check if the libs are there # PORTAUDIO_LIBS="" PORTAUDIO_INCLUDES="" AC_CHECK_LIB(portaudio, Pa_Initialize, [ if test "x$portaudio_dir" != "x" then # # Put the "-I" and "-L" flags for portaudio # into PORTAUDIO_INCLUDES and PORTAUDIO_LIBS, # respectively. # PORTAUDIO_LIBS="-L$portaudio_dir/lib -lportaudio" PORTAUDIO_INCLUDES="-I$portaudio_dir/include" else PORTAUDIO_LIBS="-lportaudio" fi AC_DEFINE(HAVE_LIBPORTAUDIO, 1, [Define to use libportaudio library]) want_portaudio=yes ],[ # User requested --with-portaudio but it isn't available if test "x$want_portaudio" = "xyes" then AC_MSG_ERROR(Linking with libportaudio failed.) fi want_portaudio=no ]) AC_SUBST(PORTAUDIO_LIBS) AC_SUBST(PORTAUDIO_INCLUDES) fi LIBS="$wireshark_save_LIBS" AC_WIRESHARK_POP_FLAGS ]) # # AC_WIRESHARK_C_ARES_CHECK # AC_DEFUN([AC_WIRESHARK_C_ARES_CHECK], [ want_c_ares=defaultyes if test "x$want_c_ares" = "xdefaultyes"; then want_c_ares=yes fi if test "x$want_c_ares" = "xyes"; then AC_CHECK_LIB(cares, ares_init, [ C_ARES_LIBS=-lcares AC_DEFINE(HAVE_C_ARES, 1, [Define to use c-ares library]) have_good_c_ares=yes ]) else AC_MSG_RESULT(not required) fi ]) # # AC_WIRESHARK_LIBCAP_CHECK # AC_DEFUN([AC_WIRESHARK_LIBCAP_CHECK], [ want_libcap=defaultyes if test "x$want_libcap" = "xdefaultyes"; then want_libcap=yes fi if test "x$want_libcap" = "xyes"; then AC_CHECK_LIB(cap, cap_set_flag, [ LIBCAP_LIBS=-lcap AC_DEFINE(HAVE_LIBCAP, 1, [Define to use the libcap library]) have_good_libcap=yes ],, ) else AC_MSG_RESULT(not required) fi ]) # # AC_WIRESHARK_KRB5_CHECK # AC_DEFUN([AC_WIRESHARK_KRB5_CHECK], [ AC_WIRESHARK_PUSH_FLAGS wireshark_save_LIBS="$LIBS" if test "x$krb5_dir" != "x" then # # The user specified a directory in which kerberos resides, # so add the "include" subdirectory of that directory to # the include file search path and the "lib" subdirectory # of that directory to the library search path. # # XXX - if there's also a kerberos in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # KRB5_CFLAGS="-I$krb5_dir/include" ac_heimdal_version=`grep heimdal $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*heimdal.*$/HEIMDAL/'` # MIT Kerberos moved krb5.h to krb5/krb5.h starting with release 1.5 ac_mit_version_olddir=`grep 'Massachusetts' $krb5_dir/include/krb5.h | head -n 1 | sed 's/^.*Massachusetts.*$/MIT/'` ac_mit_version_newdir=`grep 'Massachusetts' $krb5_dir/include/krb5/krb5.h | head -n 1 | sed 's/^.*Massachusetts.*$/MIT/'` ac_krb5_version="$ac_heimdal_version$ac_mit_version_olddir$ac_mit_version_newdir" if test "x$ac_krb5_version" = "xHEIMDAL" then KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lasn1 $SSL_LIBS -lroken -lcrypt" else KRB5_LIBS="-L$krb5_dir/lib -lkrb5 -lk5crypto -lcom_err" fi if test "x$ac_krb5_version" = "xMIT" then AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos]) fi else AC_PATH_TOOL(KRB5_CONFIG, krb5-config) if test -x "$KRB5_CONFIG" then KRB5_CFLAGS=`"$KRB5_CONFIG" --cflags` KRB5_LIBS=`"$KRB5_CONFIG" --libs` # # If -lcrypto is in KRB5_FLAGS, we require it to build # with Heimdal/MIT. We don't want to built with it by # default, due to annoying license incompatibilities # between the OpenSSL license and the GPL, so: # # if SSL_LIBS is set to a non-empty string, we # remove -lcrypto from KRB5_LIBS and replace # it with SSL_LIBS; # # if SSL_LIBS is not set to a non-empty string # we fail with an appropriate error message. # case "$KRB5_LIBS" in *-lcrypto*) if test ! -z "$SSL_LIBS" then KRB5_LIBS=`echo $KRB5_LIBS | sed 's/-lcrypto//'` KRB5_LIBS="$KRB5_LIBS $SSL_LIBS" else AC_MSG_ERROR([Kerberos library requires -lcrypto, so you must specify --with-ssl]) fi ;; esac ac_krb5_version=`"$KRB5_CONFIG" --version | head -n 1 | sed -e 's/^.*heimdal.*$/HEIMDAL/' -e 's/^Kerberos .*$/MIT/' -e 's/^Solaris Kerberos .*$/MIT/'` fi fi CPPFLAGS="$CPPFLAGS $KRB5_CFLAGS" # # Make sure we have "krb5.h". If we don't, it means we probably # don't have kerberos, so don't use it. # AC_CHECK_HEADER(krb5.h,, [ if test "x$krb5_dir" != "x" then # # The user used "--with-krb5=" to specify a directory # containing kerberos, but we didn't find the header file # there; that either means they didn't specify the # right directory or are confused about whether kerberos # is, in fact, installed. Report the error and give up. # AC_MSG_ERROR([kerberos header not found in directory specified in --with-krb5]) else if test "x$want_krb5" = "xyes" then # # The user tried to force us to use the library, but we # couldn't find the header file; report an error. # AC_MSG_ERROR(Header file krb5.h not found.) else # # We couldn't find the header file; don't use the # library, as it's probably not present. # KRB5_CFLAGS="" KRB5_LIBS="" want_krb5=no AC_MSG_RESULT(No Heimdal or MIT header found - disabling dissection for some kerberos data in packet decoding) fi fi ]) if test "x$want_krb5" != "xno" then # # Well, we at least have the krb5 header file. # Check whether this is Heimdal or MIT. # AC_MSG_CHECKING(whether the Kerberos library is Heimdal or MIT) if test "x$ac_krb5_version" = "xHEIMDAL" -o "x$ac_krb5_version" = "xMIT" then # # Yes. # Check whether we have krb5_kt_resolve - and whether # we need to link with -lresolv when linking with # the Kerberos library. # AC_MSG_RESULT($ac_krb5_version) found_krb5_kt_resolve=no for extras in "" "-lresolv" do LIBS="$KRB5_LIBS $extras $wireshark_save_LIBS" if test -z "$extras" then AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve]) else AC_MSG_CHECKING([whether $ac_krb5_version includes krb5_kt_resolve (linking with $extras)]) fi AC_TRY_LINK( [ # include ], [ krb5_kt_resolve(0, 0, 0); ], [ # # We found "krb5_kt_resolve()". # AC_MSG_RESULT(yes) if test -n "$extras"; then KRB5_LIBS="$KRB5_LIBS $extras" fi AC_DEFINE(HAVE_KERBEROS, 1, [Define to use kerberos]) if test "x$ac_krb5_version" = "xHEIMDAL" then AC_DEFINE(HAVE_HEIMDAL_KERBEROS, 1, [Define to use heimdal kerberos]) elif test "x$ac_krb5_version" = "xMIT" then AC_DEFINE(HAVE_MIT_KERBEROS, 1, [Define to use MIT kerberos]) fi found_krb5_kt_resolve=yes break ], [ AC_MSG_RESULT(no) ]) done if test "$found_krb5_kt_resolve" = no then # # We didn't find "krb5_kt_resolve()" in the # Kerberos library, even when we tried linking # with -lresolv; we can't link with kerberos. # if test "x$want_krb5" = "xyes" then # # The user tried to force us to use the library, # but we can't do so; report an error. # AC_MSG_ERROR(Usable $ac_krb5_version not found) else # # Don't use # AC_MSG_RESULT(Usable $ac_krb5_version not found - disabling dissection for some kerberos data in packet decoding) KRB5_CFLAGS="" KRB5_LIBS="" want_krb5=no fi else # # We can link with Kerberos; see whether krb5.h # defines KEYTYPE_ARCFOUR_56 (where "defines" means # "as a #define or as an enum member). # AC_MSG_CHECKING([whether krb5.h defines KEYTYPE_ARCFOUR_56]) AC_COMPILE_IFELSE( [ AC_LANG_SOURCE( [[ #include #include int main() { printf("%u\n", KEYTYPE_ARCFOUR_56); } ]]) ], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_KEYTYPE_ARCFOUR_56, 1, [Define if krb5.h defines KEYTYPE_ARCFOUR_56]) ], [ AC_MSG_RESULT(no) ]) fi else # # It's not Heimdal or MIT. # AC_MSG_RESULT(no) if test "x$want_krb5" = "xyes" then # # The user tried to force us to use the library, # but we can't do so; report an error. # AC_MSG_ERROR(Kerberos not found) else # # Don't use. # AC_MSG_RESULT(Kerberos not found - disabling dissection for some kerberos data in packet decoding) KRB5_CFLAGS="" KRB5_LIBS="" want_krb5=no fi fi else # # The user asked us not to use Kerberos, or they didn't # say whether they wanted us to use it but we found # that we couldn't. # KRB5_CFLAGS="" KRB5_LIBS="" want_krb5=no fi AC_SUBST(KRB5_CFLAGS) AC_SUBST(KRB5_LIBS) LIBS="$wireshark_save_LIBS" AC_WIRESHARK_POP_FLAGS ]) # # AC_WIRESHARK_GEOIP_CHECK # AC_DEFUN([AC_WIRESHARK_GEOIP_CHECK], [ want_geoip=defaultyes if test "x$want_geoip" = "xdefaultyes"; then want_geoip=yes fi if test "x$want_geoip" = "xyes"; then AC_CHECK_LIB(GeoIP, GeoIP_new, [ GEOIP_LIBS=-lGeoIP AC_DEFINE(HAVE_GEOIP, 1, [Define to use GeoIP library]) have_good_geoip=yes ],, ) if test "x$have_good_geoip" = "xyes"; then AC_CHECK_LIB(GeoIP, GeoIP_country_name_by_ipnum_v6, [ AC_DEFINE(HAVE_GEOIP_V6, 1, [Define if GeoIP supports IPv6 (GeoIP 1.4.5 and later)]) ],, ) AC_CHECK_LIB(GeoIP, GeoIP_free, [ AC_DEFINE(HAVE_GEOIP_FREE, 1, [Define if GeoIP has GeoIP_free (not available upstream with 1.6.10 or earlier)]) ],, ) fi else AC_MSG_RESULT(not required) fi ]) # # AC_WIRESHARK_LIBSSH_CHECK # AC_DEFUN([AC_WIRESHARK_LIBSSH_CHECK], [ want_libssh=defaultyes if test "x$want_libssh" = "xdefaultyes"; then want_libssh=yes fi if test "x$want_libssh" = "xyes"; then AC_CHECK_LIB(ssh, ssh_new, [ LIBSSH_LIBS=-lssh AC_DEFINE(HAVE_LIBSSH, 1, [Define to use libssh library]) have_good_libssh=yes ],, ) AC_MSG_CHECKING([whether libssh >= 0.6.0 for sshdump, ciscodump]) PKG_CHECK_EXISTS([libssh >= 0.6.0], [ AC_MSG_RESULT(yes) AC_DEFINE(HAVE_LIBSSH_POINTSIX, 1, [Defined if libssh >= 0.6.0]) have_libssh_pointsix=yes ], [AC_MSG_RESULT(no)] ) if test "x$have_libssh_pointsix" = "xyes"; then # ssh_userauth_agent exists only >= 0.6.0, but not on Windows # so check explicitly AC_CHECK_LIB(ssh, ssh_userauth_agent, [ AC_DEFINE(HAVE_SSH_USERAUTH_AGENT, 1, [Libssh library has ssh_userauth_agent]) have_ssh_userauth_agent=yes ],, ) fi else AC_MSG_RESULT(not required) fi ]) # # AC_WIRESHARK_NGHTTP2_CHECK # AC_DEFUN([AC_WIRESHARK_NGHTTP2_CHECK], [ want_nghttp2=defaultyes if test "x$want_nghttp2" = "xdefaultyes"; then want_nghttp2=yes fi if test "x$want_nghttp2" = "xyes"; then AC_CHECK_LIB(nghttp2, nghttp2_hd_inflate_new, [ AC_CHECK_HEADERS(nghttp2/nghttp2.h, [ NGHTTP2_LIBS=-lnghttp2 AC_DEFINE(HAVE_NGHTTP2, 1, [Define to use nghttp2 library]) have_good_nghttp2=yes ],, ) ],, ) else AC_MSG_RESULT(not required) fi ]) #AC_WIRESHARK_LDFLAGS_CHECK # # $1 : ldflag(s) to test # # We attempt to compile and link a test program with the specified linker # flag. The defined flag is added to LDFLAGS only if the link succeeds. # AC_DEFUN([AC_WIRESHARK_LDFLAGS_CHECK], [LD_OPTION="$1" AC_MSG_CHECKING(whether we can add $LD_OPTION to LDFLAGS) AC_WIRESHARK_PUSH_FLAGS LDFLAGS="$LDFLAGS $LD_OPTION" can_add_to_ldflags="" AC_LINK_IFELSE( [ AC_LANG_SOURCE([[int main() { return 0; }]]) ], [ AC_MSG_RESULT(yes) AX_APPEND_FLAG([$LD_OPTION], [WS_LDFLAGS]) can_add_to_ldflags=yes ], [ AC_MSG_RESULT(no) can_add_to_ldflags=no ]) AC_WIRESHARK_POP_FLAGS ]) dnl dnl Check whether, if you pass an unknown warning option to the dnl compiler, it fails or just prints a warning message and succeeds. dnl Set ac_wireshark_unknown_warning_option_error to the appropriate flag dnl to force an error if it would otherwise just print a warning message dnl and succeed. dnl AC_DEFUN([AC_WIRESHARK_CHECK_UNKNOWN_WARNING_OPTION_ERROR], [ AC_MSG_CHECKING([whether the compiler fails when given an unknown warning option]) AC_WIRESHARK_PUSH_FLAGS CFLAGS="$CFLAGS -Wxyzzy-this-will-never-succeed-xyzzy" AC_TRY_COMPILE( [], [return 0], [ AC_MSG_RESULT([no, adding -Werror=unknown-warning-option]) # # We're assuming this is clang, where # -Werror=unknown-warning-option is the appropriate # option to force the compiler to fail. # ac_wireshark_unknown_warning_option_error="-Werror=unknown-warning-option" ], [ AC_MSG_RESULT([yes]) ]) AC_WIRESHARK_POP_FLAGS ]) dnl dnl Check whether, if you pass a valid-for-C-but-not-C++ option to the dnl compiler, it fails or just prints a warning message and succeeds. dnl Set ac_wireshark_non_cxx_warning_option_error to the appropriate flag dnl to force an error if it would otherwise just print a warning message dnl and succeed. dnl AC_DEFUN([AC_WIRESHARK_CHECK_NON_CXX_WARNING_OPTION_ERROR], [ AC_MSG_CHECKING([whether the compiler fails when given an warning option not supported for C++]) # # Some C+ compilers warn about -Wmissing-prototypes, and some warn # about -Wmissing-declarations. Check both. # AC_LANG_PUSH(C++) AC_WIRESHARK_PUSH_FLAGS save_CXXFLAGS="$CXXFLAGS" for flag in -Wmissing-prototypes -Wmissing-declarations; do CXXFLAGS="$save_CXXFLAGS $flag" AC_TRY_COMPILE( [], [return 0], [ # # We're assuming this is g++, where -Werror is the # appropriate option to force the compiler to fail. # Check whether it fails with -Werror. # # NOTE: it's important to put -Werror *before* # the flag, otherwise, when it sees the flag, # it doesn't yet know that warnings should be # treated as errors, and doesn't treat the # "that's C-only" warning as an error. # CXXFLAGS="$save_CXXFLAGS -Werror $flag" AC_TRY_COMPILE( [], [return 0], [ # # No, so this option is actually OK # with our C++ compiler. # # (We need an empty command here to # prevent some versions of autoconf # from generating a script with an # empty "then" clause for an if statement.) # : ], [ # # Yes, so we need -Werror for the tests. # ac_wireshark_non_cxx_warning_option_error="-Werror" break ]) ]) done AC_WIRESHARK_POP_FLAGS AC_LANG_POP if test x$ac_wireshark_non_cxx_warning_option_error = x; then AC_MSG_RESULT([yes]) else AC_MSG_RESULT([no, adding -Werror]) fi ]) # # AC_WIRESHARK_COMPILER_FLAGS_CHECK # # $1 : flags to test # $2 : if supplied, C for C-only flags, CXX for C++-only flags # $3 : if supplied, a program to try to compile with the flag # and, if the compile fails when -Werror is turned on, # we don't add the flag - used for warning flags that # issue incorrect or non-useful warnings with some # compiler versions # $4 : must be supplied if $3 is supplied - a message describing # for what the test program is testing # # The macro first determines if the compiler supports GCC-style flags. # Then it attempts to compile with the defined cflags. The defined # flags are added to WS_CHECKED_CFLAGS only if the compilation succeeds. # CFLAGS remains unchanged. can_add_to_cflags is set to "no" when the # flag is checked but unavailable. (Like-wise for CXXFLAGS.) # # We do this because not all such options are necessarily supported by # the version of the particular compiler we're using. # AC_DEFUN([AC_WIRESHARK_COMPILER_FLAGS_CHECK], [GCC_OPTION="$1" can_add_to_cflags="" can_add_to_cxxflags="" if test "x$ac_supports_gcc_flags" = "xyes" ; then if test "$2" != CXX ; then # # Not C++-only; if this can be added to the C compiler flags, add them. # # If the option begins with "-W", add # $ac_wireshark_unknown_warning_option_error to make sure that # we'll get an error if it's an unknown warning option; not all # compilers treat unknown warning options as errors (I'm looking at # you, clang). # # If the option begins with "-f" or "-m", add -Werror to make sure # that we'll get an error if we get "argument unused during compilation" # warnings, as those will either cause a failure for files compiled # with -Werror or annoying noise for files compiled without it. # (Yeah, you, clang.) # AC_MSG_CHECKING(whether we can add $GCC_OPTION to CFLAGS) AC_WIRESHARK_PUSH_FLAGS if expr "x$GCC_OPTION" : "x-W.*" >/dev/null then CFLAGS="$CFLAGS $ac_wireshark_unknown_warning_option_error $GCC_OPTION" elif expr "x$GCC_OPTION" : "x-f.*" >/dev/null then CFLAGS="$CFLAGS -Werror $GCC_OPTION" elif expr "x$GCC_OPTION" : "x-m.*" >/dev/null then CFLAGS="$CFLAGS -Werror $GCC_OPTION" else CFLAGS="$CFLAGS $GCC_OPTION" fi AC_COMPILE_IFELSE( [ AC_LANG_SOURCE([[int foo;]]) ], [ AC_MSG_RESULT(yes) can_add_to_cflags=yes # # OK, do we have a test program? If so, check # whether it fails with this option and -Werror, # and, if so, don't include it. # # We test arg 4 here because arg 3 is a program which # could contain quotes (breaking the comparison). # if test "x$4" != "x" ; then CFLAGS="$CFLAGS -Werror" AC_MSG_CHECKING(whether $GCC_OPTION $4) AC_COMPILE_IFELSE( [AC_LANG_SOURCE($3)], [ AC_MSG_RESULT(no) # # Remove "force an error for a warning" options, if we # added them, by setting CFLAGS to the saved value plus # just the new option. # AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS]) if test "$CC" = "$CC_FOR_BUILD"; then # # We're building the build tools with the same compiler # with which we're building Wireshark, so add the flags # to the flags for that compiler as well. # AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS_FOR_BUILD]) fi ], [ AC_MSG_RESULT(yes) ]) else # # Remove "force an error for a warning" options, if we # added them, by setting CFLAGS to the saved value plus # just the new option. # AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS]) if test "$CC" = "$CC_FOR_BUILD"; then # # We're building the build tools with the same compiler # with which we're building Wireshark, so add the flags # to the flags for that compiler as well. # AX_APPEND_FLAG([$GCC_OPTION], [WS_CFLAGS_FOR_BUILD]) fi fi ], [ AC_MSG_RESULT(no) can_add_to_cflags=no ]) AC_WIRESHARK_POP_FLAGS fi # # Did we find a C++ compiler? # if test "x$CXX" != "x" ; then # # Yes. Is this option only for the C compiler? # if test "$2" != C ; then # # Not C-only; if this option can be added to the C++ compiler # options, add it. # # If the option begins with "-W", add # $ac_wireshark_unknown_warning_option_error, as per the above, and # also add $ac_wireshark_non_cxx_warning_option_error, because at # lease some versions of g++ whine about -Wmissing-prototypes, the # fact that at least one of those versions refuses to warn about # function declarations without an earlier declaration nonwithstanding; # perhaps there's a reason not to warn about that with C++ even though # warning about it can be a Good Idea with C, but it's not obvious to # me). # # If the option begins with "-f" or "-m", add -Werror to make sure # that we'll get an error if we get "argument unused during compilation" # warnings, as those will either cause a failure for files compiled # with -Werror or annoying noise for files compiled without it. # (Yeah, you, clang++.) # AC_MSG_CHECKING(whether we can add $GCC_OPTION to CXXFLAGS) AC_WIRESHARK_PUSH_FLAGS if expr "x$GCC_OPTION" : "x-W.*" >/dev/null then CXXFLAGS="$CXXFLAGS $ac_wireshark_unknown_warning_option_error $ac_wireshark_non_cxx_warning_option_error $GCC_OPTION" elif expr "x$GCC_OPTION" : "x-f.*" >/dev/null then CXXFLAGS="$CXXFLAGS -Werror $GCC_OPTION" elif expr "x$GCC_OPTION" : "x-m.*" >/dev/null then CXXFLAGS="$CXXFLAGS -Werror $GCC_OPTION" else CXXFLAGS="$CXXFLAGS $GCC_OPTION" fi AC_LANG_PUSH([C++]) AC_COMPILE_IFELSE( [ AC_LANG_SOURCE([[int foo;]]) ], [ AC_MSG_RESULT(yes) can_add_to_cxxflags=yes # # OK, do we have a test program? If so, check # whether it fails with this option and -Werror, # and, if so, don't include it. # # We test arg 4 here because arg 3 is a program which # could contain quotes (breaking the comparison). # if test "x$4" != "x" ; then CXXFLAGS="$CXXFLAGS -Werror" AC_MSG_CHECKING(whether $GCC_OPTION $4) AC_COMPILE_IFELSE( [AC_LANG_SOURCE($3)], [ AC_MSG_RESULT(no) # # Remove "force an error for a warning" options, if we # added them, by setting CXXFLAGS to the saved value plus # just the new option. # AX_APPEND_FLAG([$GCC_OPTION], [WS_CXXFLAGS]) ], [ AC_MSG_RESULT(yes) ]) else # # Remove "force an error for a warning" options, if we # added them, by setting CXXFLAGS to the saved value plus # just the new option. # AX_APPEND_FLAG([$GCC_OPTION], [WS_CXXFLAGS]) fi ], [ AC_MSG_RESULT(no) can_add_to_cxxflags=no ]) AC_WIRESHARK_POP_FLAGS AC_LANG_POP([C++]) fi if test "(" "$can_add_to_cflags" = "yes" -a "$can_add_to_cxxflags" = "no" ")" \ -o "(" "$can_add_to_cflags" = "no" -a "$can_add_to_cxxflags" = "yes" ")" then # # Confusingly, some C++ compilers like -Wmissing-prototypes but # don't like -Wmissing-declarations and others like # -Wmissing-declarations but don't like -Wmissing-prototypes, # the fact that the corresponding C compiler likes both. Don't # warn about them. # if test "(" x$GCC_OPTION != x-Wmissing-prototypes ")" \ -a "(" x$GCC_OPTION != x-Wmissing-declarations ")" then AC_MSG_WARN([$CC and $CXX appear to be a mismatched pair]) fi fi fi fi ]) # AC_WIRESHARK_GCC_FORTIFY_SOURCE_CHECK # # Checks if '-D_FORTIFY_SOURCE=...' is OK to use in CPPFLAGS. # Use '-D_FORTIFY_SOURCE=...' in CPPFLAGS only if the GCC 'optimization level' is > 0. # The use of '-D_FORTIFY_SOURCE=...' will cause a warning with at least some versions # of glibc if the GCC "optimization level" is 0 (default or -O or -O0) # when using GCC to compile a source file which references the macro definition. # # See: http://gcc.gnu.org/ml/gcc-patches/2004-09/msg02055.html # See: http://sourceware.org/bugzilla/show_bug.cgi?id=13979 # # We'll use '-D_FORTIFY_SOURCE=2' only if there's no warning; Among other things this means # that the use of '-D_FORTIFY_SOURCE=2' with '-Werror' and '-O0' won't cause # the compiler to stop on error. # Assumption: CFLAGS already contains whatever optimization option including none) is # to be used. # AC_DEFUN([AC_WIRESHARK_GCC_FORTIFY_SOURCE_CHECK], [ if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then AC_MSG_CHECKING([whether -D_FORTIFY_SOURCE=2 can be used (without generating a warning)]) AC_WIRESHARK_PUSH_FLAGS CFLAGS="$CFLAGS -Werror" CPPFLAGS="$CPPFLAGS -D_FORTIFY_SOURCE=2" AC_COMPILE_IFELSE([ AC_LANG_SOURCE([[ #include int foo; ]])], [ AC_MSG_RESULT(yes) AX_APPEND_FLAG([-D_FORTIFY_SOURCE=2], [WS_CPPFLAGS]) ], [ AC_MSG_RESULT(no) ]) AC_WIRESHARK_POP_FLAGS fi ]) # # AC_WIRESHARK_GCC_SYSTEM_INCLUDE # # Replace -I include flag for -isystem in FLAGS argument # AC_DEFUN([AC_WIRESHARK_GCC_SYSTEM_INCLUDE], [ if test "x$GCC" = "xyes" -o "x$CC" = "xclang" ; then $1=`echo " $$1" \ | sed -e 's/ *-I *\// -isystem\//g' -e 's/^ *//'` fi ]) # # PKG_WIRESHARK_CHECK_SYSTEM_MODULES # AC_DEFUN([PKG_WIRESHARK_CHECK_SYSTEM_MODULES], [ PKG_CHECK_MODULES($@) AC_WIRESHARK_GCC_SYSTEM_INCLUDE($1_CFLAGS) ]) # Based on AM_PATH_GTK in gtk-2.0.m4. dnl AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION([MODULE, MINIMUM-VERSION, dnl REQUESTED-MAJOR_VERSION, [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]]) dnl Test for a particular Qt module, for a particular Qt major version, dnl and, if we find it add the flags and libraries for it to Qt_CFLAGS dnl and Qt_LIBS. dnl AC_DEFUN([AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION], [ case "$3" in 4) # # Check for Qt 4. # modprefix="Qt" # # Version of the module we're checking for. # Default to 4.0.0. # min_qt_version=ifelse([$2], ,4.0.0,$2) ;; 5) # # Check for Qt 5. # modprefix="Qt5" # # Version of the module we're checking for. # Default to 5.0.0. # min_qt_version=5.0.0 ;; *) AC_MSG_ERROR([Qt version $3 is not a known Qt version]) ;; esac pkg_config_module="${modprefix}$1" AC_MSG_CHECKING(for $pkg_config_module - version >= $min_qt_version) if $PKG_CONFIG --atleast-version $min_qt_version $pkg_config_module; then mod_version=`$PKG_CONFIG --modversion $pkg_config_module` AC_MSG_RESULT(yes (version $mod_version)) mod_cflags=`$PKG_CONFIG --cflags $pkg_config_module` AC_WIRESHARK_GCC_SYSTEM_INCLUDE(mod_cflags) Qt_CFLAGS="$Qt_CFLAGS $mod_cflags" Qt_LIBS="$Qt_LIBS `$PKG_CONFIG --libs $pkg_config_module`" # Run Action-If-Found ifelse([$4], , :, [$4]) else AC_MSG_RESULT(no) # Run Action-If-Not-Found ifelse([$5], , :, [$5]) fi ]) dnl AC_WIRESHARK_QT_MODULE_CHECK([MODULE, MINIMUM-VERSION, dnl REQUESTED-MAJOR_VERSION, [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]]) dnl Test for a particular Qt module and add the flags and libraries dnl for it to Qt_CFLAGS and Qt_LIBS. dnl AC_DEFUN([AC_WIRESHARK_QT_MODULE_CHECK], [ # # Prior to Qt 5, modules were named QtXXX. # In Qt 5, they're named Qt5XXX. # This will need to change to handle future major Qt releases. # case "$3" in yes|unspecified) # # Check for all versions of Qt we support. # Try the Qt 5 version first. # versions="5 4" ;; 4) # # Check for Qt 4. # versions="4" ;; 5) # # Check for Qt 5. # versions="5" ;; *) AC_MSG_ERROR([Qt version $3 is not a known Qt version]) ;; esac for version in $versions do AC_WIRESHARK_QT_MODULE_CHECK_WITH_QT_VERSION($1, $2, $version, [foundit=yes], [foundit=no]) if test "x$foundit" = "xyes"; then break fi done if test "x$foundit" = "xyes"; then # Remember which version of Qt we found qt_version=$version # Run Action-If-Found ifelse([$4], , :, [$4]) else # Run Action-If-Not-Found ifelse([$5], , :, [$5]) fi ]) AC_DEFUN([AC_WIRESHARK_QT_ADD_PIC_IF_NEEDED], [ AC_LANG_PUSH([C++]) AC_WIRESHARK_PUSH_FLAGS CPPFLAGS="$CPPFLAGS $Qt_CFLAGS" AC_MSG_CHECKING([whether Qt works without -fPIC]) AC_PREPROC_IFELSE( [AC_LANG_SOURCE([[#include ]])], [AC_MSG_RESULT(yes)], [ AC_MSG_RESULT(no) AC_MSG_CHECKING([whether Qt works with -fPIC]) CPPFLAGS="$CPPFLAGS -fPIC" AC_PREPROC_IFELSE( [AC_LANG_SOURCE([[#include ]])], [ AC_MSG_RESULT(yes) Qt_CFLAGS="$Qt_CFLAGS -fPIC" ], [ AC_MSG_RESULT(no) AC_MSG_ERROR(Couldn't compile Qt without -fPIC nor with -fPIC) ]) ]) AC_WIRESHARK_POP_FLAGS AC_LANG_POP([C++]) ]) dnl AC_WIRESHARK_QT_CHECK([MINIMUM-VERSION, REQUESTED-MAJOR_VERSION, dnl [ACTION-IF-FOUND, [ACTION-IF-NOT-FOUND]]]) dnl Test for Qt and define Qt_CFLAGS and Qt_LIBS. dnl AC_DEFUN([AC_WIRESHARK_QT_CHECK], [ qt_version_to_check="$2" # # Check for the Core module; if we don't have that, # we don't have Qt. If we *do* have it, we know what # version it is, so only check for that version of # other modules. # AC_WIRESHARK_QT_MODULE_CHECK(Core, $1, $qt_version_to_check, [ qt_version_to_check=$qt_version QT_VERSION=$mod_version QT_VERSION_MAJOR=`echo "$QT_VERSION" | cut -f1 -d.` QT_VERSION_MINOR=`echo "$QT_VERSION" | cut -f2 -d.` QT_VERSION_MICRO=`echo "$QT_VERSION" | cut -f3 -d.` # Qt 5.7 and later requires C++11 AS_IF([test $QT_VERSION_MAJOR -eq 5 -a $QT_VERSION_MINOR -ge 7], [AS_IF([test "$HAVE_CXX11" -eq 0], [AC_MSG_ERROR([Qt 5.7 and later requires C++11])])]) ], [no_qt=yes]) if test x"$no_qt" = x ; then # # We need the Gui module as well. # AC_WIRESHARK_QT_MODULE_CHECK(Gui, $1, $qt_version_to_check, , [no_qt=yes]) fi if test x"$no_qt" = x ; then # # Qt 5.0 appears to move the widgets out of Qt GUI # to Qt Widgets; look for the Widgets module, but # don't fail if we don't have it. # AC_WIRESHARK_QT_MODULE_CHECK(Widgets, $1, $qt_version_to_check) # # Qt 5.0 also appears to move the printing support into # the Qt PrintSupport module. # AC_WIRESHARK_QT_MODULE_CHECK(PrintSupport, $1, $qt_version_to_check) # # Qt 5.0 added multimedia in the Qt # Multimedia module. # have_qt_multimedia_lib=no AC_WIRESHARK_QT_MODULE_CHECK(Multimedia, $1, $qt_version_to_check, have_qt_multimedia_lib=yes AC_DEFINE(QT_MULTIMEDIA_LIB, 1, [Define if we have QtMultimedia])) # # While we're at it, look for QtMacExtras. (Presumably # if we're not building for macOS, it won't be present.) # # XXX - is there anything in QtX11Extras or QtWinExtras # that we should be using? # AC_WIRESHARK_QT_MODULE_CHECK(MacExtras, $1, $qt_version_to_check, AC_DEFINE(QT_MACEXTRAS_LIB, 1, [Define if we have QtMacExtras])) AC_WIRESHARK_QT_ADD_PIC_IF_NEEDED # Run Action-If-Found ifelse([$3], , :, [$3]) else # Run Action-If-Not-Found ifelse([$4], , :, [$4]) fi ]) dnl AC_WIRESHARK_QT_TOOL_CHECK([TOOLPATHVAR, TOOL, REQUESTED-MAJOR_VERSION]) dnl Test for a particular Qt tool for some specific version of Qt dnl AC_DEFUN([AC_WIRESHARK_QT_TOOL_CHECK], [ # # At least in some versions of Debian/Ubuntu, and perhaps # other OSes, the Qt build tools are just links to a # program called "qtchooser", and even if you want to # build with Qt 5, running the tool might give you the # Qt 4 version of the tool unless you run the tool with # a -qt=5 argument. # # So we look for qtchooser and, if we find it, use the # -qt={version} argument, otherwise we look for particular # tool versions using tool name suffixes. # AC_PATH_PROG(QTCHOOSER, qtchooser) if test ! -z "$QTCHOOSER"; then # # We found qtchooser; we assume that means that # the tool is linked to qtchooser, so that we # can run it with the -qt={version} flag to get # the appropriate version of the tool. # AC_PATH_PROG($1, $2) if test "x$$1" = x; then # # We can't build Qt Wireshark without that # tool.. # AC_MSG_ERROR(I couldn't find $2; make sure it's installed and in your path) fi # # Add the -qt={version} argument to it. # $1="$$1 -qt=$qt_version" else # # Annoyingly, on some Linux distros (e.g. Debian) # the Qt 5 tools have no suffix and the Qt 4 tools # have suffix -qt4. On other distros (e.g. openSUSE) # the Qt 5 tools have suffix -qt5 and the Qt 4 tools # have no suffix. # # So we check for the tool first with the -qtN suffix # and then with no suffix. # AC_PATH_PROGS($1, [$2-qt$qt_version $2]) if test "x$$1" = x; then # # We can't build Qt Wireshark without that # tool.. # AC_MSG_ERROR(I couldn't find $2-qt$qt_version or $2; make sure it's installed and in your path) fi fi ]) AC_DEFUN([AC_WIRESHARK_QT_TOOL_CHECK_LRELEASE], [ AC_WIRESHARK_QT_TOOL_CHECK(LRELEASE, lrelease, $2) AC_MSG_CHECKING(whether lrelease -version works) lrelease_version=`$LRELEASE -version 2>&AS_MESSAGE_LOG_FD` AS_IF([test $? -ne 0], [ AC_MSG_RESULT(no) AC_MSG_ERROR([$LRELEASE -version returned non-zero exit status]) ]) AC_MSG_RESULT([ok, $lrelease_version]) ]) # # AC_WIRESHARK_LZ4_CHECK # AC_DEFUN([AC_WIRESHARK_LZ4_CHECK], [ AC_WIRESHARK_PUSH_FLAGS if test "x$lz4_dir" != "x" then # # The user specified a directory in which lz4 resides, # so add the "include" subdirectory of that directory to # the include file search path and the "lib" subdirectory # of that directory to the library search path. # # XXX - if there's also a lz4 in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # LZ4_CFLAGS="-I$lz4_dir/include" fi # # Make sure we have "lz4.h". If we don't, it means we probably # don't have lz4, so don't use it. # AC_CHECK_HEADER(lz4.h,, [ if test "x$lz4_dir" != "x" then # # The user used "--with-lz4=" to specify a directory # containing lz4, but we didn't find the header file # there; that either means they didn't specify the # right directory or are confused about whether lz4 # is, in fact, installed. Report the error and give up. # AC_MSG_ERROR([lz4 header not found in directory specified in --with-lz4]) else if test "x$want_lz4" = "xyes" then # # The user tried to force us to use the library, but we # couldn't find the header file; report an error. # AC_MSG_ERROR(Header file lz4.h not found.) else # # We couldn't find the header file; don't use the # library, as it's probably not present. # want_lz4=no fi fi ]) if test "x$want_lz4" != "xno" then # # Well, we at least have the lz4 header file. # We link with lz4 to support uncompression of # CQL traffic. # LZ4_LIBS="-llz4" ac_save_LIBS="$LIBS" LIBS="$LZ4_LIBS $LIBS" AC_DEFINE(HAVE_LZ4, 1, [Define to use lz4 library]) # # Check for "LZ4_decompress_safe()" in lz4, which we need # in order to read compressed capture files. # AC_CHECK_FUNCS(LZ4_decompress_safe) LIBS="$ac_save_LIBS" fi AC_WIRESHARK_POP_FLAGS ]) # # AC_WIRESHARK_SNAPPY_CHECK # AC_DEFUN([AC_WIRESHARK_SNAPPY_CHECK], [ AC_WIRESHARK_PUSH_FLAGS if test "x$snappy_dir" != "x" then # # The user specified a directory in which snappy resides, # so add the "include" subdirectory of that directory to # the include file search path and the "lib" subdirectory # of that directory to the library search path. # # XXX - if there's also a snappy in a directory that's # already in CPPFLAGS or LDFLAGS, this won't make us find # the version in the specified directory, as the compiler # and/or linker will search that other directory before it # searches the specified directory. # SNAPPY_CFLAGS="-I$snappy_dir/include" fi # # Make sure we have "snappy-c.h". If we don't, it means we probably # don't have snappy, so don't use it. # AC_CHECK_HEADER(snappy-c.h,, [ if test "x$snappy_dir" != "x" then # # The user used "--with-snappy=" to specify a directory # containing snappy, but we didn't find the header file # there; that either means they didn't specify the # right directory or are confused about whether snappy # is, in fact, installed. Report the error and give up. # AC_MSG_ERROR([snappy-c.header not found in directory specified in --with-snappy]) else if test "x$want_snappy" = "xyes" then # # The user tried to force us to use the library, but we # couldn't find the header file; report an error. # AC_MSG_ERROR(Header file snappy-c.h not found.) else # # We couldn't find the header file; don't use the # library, as it's probably not present. # want_snappy=no fi fi ]) if test "x$want_snappy" != "xno" then # # Well, we at least have the snappy-c.header file. # We link with snappy to support uncompression of # compressed CQL traffic. # SNAPPY_LIBS=-lsnappy ac_save_LIBS="$LIBS" LIBS="$SNAPPY_LIBS $LIBS" AC_DEFINE(HAVE_SNAPPY, 1, [Define to use snappy library]) # # Check for "snappy_uncompress()" in snappy, which we need # in order to read compressed capture files. # AC_CHECK_FUNCS(snappy_uncompress) LIBS="$ac_save_LIBS" fi AC_WIRESHARK_POP_FLAGS ])