10 AM_INIT_AUTOMAKE(libwtap.a, 0.0.0)
11 AM_CONFIG_HEADER(config.h)
15 dnl Checks for programs.
21 AC_PATH_PROG(LEX, flex)
26 # If we're running gcc, add '-Wall -W -Wcast-qual' to CFLAGS, and add
27 # '-D_U_="__attribute__((unused))"' as well, so we can use _U_ to
28 # flag unused function arguments and not get warnings about them.
29 # If "--with-extra-gcc-checks" was specified, add "-Wcast-align"
30 # as well. (Add more checks here in the future?)
32 # Otherwise, add '-D_U_=""', so that _U_ used to flag an unused function
33 # argument will compile with non-GCC compilers.
35 AC_ARG_WITH(extra-gcc-checks,
36 [ --with-extra-gcc-checks Do additional -W checks in GCC. [default=no]],
38 if test $withval != no
40 wireshark_extra_gcc_flags=" -Wcast-qual -Wcast-align -Wbad-function-cast -pedantic -Wmissing-declarations -Wwrite-strings"
43 AC_MSG_CHECKING(to see if we can add '-Wall -W -Wcast-qual -Werror $wireshark_extra_gcc_flags' to CFLAGS)
44 if test x$GCC != x ; then
45 CFLAGS="-D_U_=\"__attribute__((unused))\" -Wall -W $wireshark_extra_gcc_flags $CFLAGS"
48 CFLAGS="-D_U_=\"\" $CFLAGS"
52 # Create the USING_GCC variable for use in Makefile.am files
53 AM_CONDITIONAL(USING_GCC, test "x$GCC" != "x")
56 # Add any platform-specific compiler flags needed.
58 AC_MSG_CHECKING(for platform-specific compiler flags)
62 # Not GCC - assume it's the vendor's compiler.
67 # HP's ANSI C compiler; flags suggested by Jost Martin.
68 # "-Ae" for ANSI C plus extensions such as "long long".
69 # "+O2", for optimization. XXX - works with "-g"?
71 CFLAGS="-Ae +O2 $CFLAGS"
72 AC_MSG_RESULT(HP ANSI C compiler - added -Ae +O2)
76 # It may be called "cc", but it's really a GCC derivative
77 # with a problematic special precompiler and precompiled
78 # headers; turn off the special precompiler, as some
79 # apparently-legal code won't compile with its precompiled
82 CFLAGS="-no-cpp-precomp $CFLAGS"
83 AC_MSG_RESULT(Apple GCC - added -no-cpp-precomp)
86 AC_MSG_RESULT(none needed)
93 # See comments above about Apple's lovely C compiler.
95 CFLAGS="-no-cpp-precomp $CFLAGS"
96 AC_MSG_RESULT(Apple GCC - added -no-cpp-precomp)
99 AC_MSG_RESULT(none needed)
106 # Add any platform-specific linker flags needed.
108 AC_MSG_CHECKING(for platform-specific linker flags)
112 # Add -Wl,-single_module to the LDFLAGS used with shared
113 # libraries, to fix some error that show up in some cases;
114 # some Apple documentation recommends it for most shared
117 LDFLAGS_SHAREDLIB="-Wl,-single_module"
119 # Add -Wl,-search_paths_first to make sure that if we search
120 # directories A and B, in that order, for a given library, a
121 # non-shared version in directory A, rather than a shared
122 # version in directory B, is chosen (so we can use
123 # --with-pcap=/usr/local to force all programs to be linked
124 # with a static version installed in /usr/local/lib rather than
125 # the system version in /usr/lib).
127 LDFLAGS="-Wl,-search_paths_first $LDFLAGS"
128 AC_MSG_RESULT(Apple linker - added -Wl,-single_module and -Wl,-search_paths_first)
132 # Shared libraries in cygwin/Win32 must never contain
135 LDFLAGS="$LDFLAGS -no-undefined"
136 AC_MSG_RESULT(CygWin GNU ld - added -no-undefined)
139 AC_MSG_RESULT(none needed)
142 AC_SUBST(LDFLAGS_SHAREDLIB)
144 AC_ARG_ENABLE(profile-build,
145 [ --enable-profile-build build profile-ready binaries. [default=no]],enable_profile_build=$enableval,enable_profile_build=no)
146 AM_CONDITIONAL(USE_PROFILE_BUILD, test x$enable_profile_build = xyes)
147 AC_MSG_CHECKING(if profile builds must be generated)
148 if test "x$enable_profile_build" = "xyes" ; then
149 if test -n "$GCC" ; then
151 CFLAGS=" -pg $CFLAGS"
154 echo "Building profile binaries currently only supported for GCC."
161 [ --disable-gtk2 build Glib1/Gtk1+-based wireshark/tshark. [default=no]],enable_gtk2=$enableval,enable_gtk2=yes)
163 if test "x$enable_gtk2" = "xyes" ; then
164 AM_PATH_GLIB_2_0(2.0.0, CFLAGS="$CFLAGS $GLIB_CFLAGS" LIBS="$LIBS $GLIB_LIBS", , gmodule)
166 AM_PATH_GLIB(1.2.0, CFLAGS="$CFLAGS $GLIB_CFLAGS" LIBS="$LIBS $GLIB_LIBS", , gmodule)
169 dnl Look in /usr/local for header files and libraries ?
170 AC_ARG_ENABLE(usr-local,
171 [ --enable-usr-local look for headers and libs in /usr/local tree. [default=yes]],enable_usr_local=$enableval,enable_usr_local=yes)
173 AC_MSG_CHECKING(whether to use /usr/local for headers and libraries)
174 if test "x$enable_usr_local" = "xyes" ; then
177 # Arrange that we search for header files in "/usr/local/include",
178 # as various packages we use ("libpcap", "zlib") may have been installed
179 # under "/usr/local/include".
181 # We do this after checking for GLib, so that "-I/usr/local/include"
182 # comes after any "-I" flags added by "AM_PATH_GLIB"; if the user has
183 # installed a pre-1.2.9 version of GLib, it'd probably go under
184 # "/usr/local", and if they then install 1.2.9 or later without
185 # uninstalling the pre-1.2.9 version, 1.2.9's header files won't be
186 # in "/usr/local/include" (they're put in a separate directory so that
187 # GLib 1.2[.x] and 1.3[.x]/2.x can coexist), and if we search
188 # "/usr/local/include" before searching the directory "AM_PATH_GLIB"
189 # specifies, we may pick up headers from the older version.
191 CFLAGS="$CFLAGS -I/usr/local/include"
192 CPPFLAGS="$CPPFLAGS -I/usr/local/include"
195 # Arrange that we search for libraries in "/usr/local/lib", as we'll
196 # be testing whether zlib has gzgets, and we need to be able to find
197 # zlib even if it's in "/usr/local/lib".
199 # We do this after checking for GLib; see above.
201 LDFLAGS="$LDFLAGS -L/usr/local/lib"
206 dnl Checks for header files
208 AC_CHECK_HEADERS(sys/time.h netinet/in.h unistd.h fcntl.h sys/stat.h sys/types.h)
211 # Define WS_VAR_IMPORT appropriately for declarations of external
212 # variables exported from dynamically-linked libraries.
214 AC_DEFINE(WS_VAR_IMPORT, extern, [Define as the string to precede external variable declarations in dynamically-linked libraries])
216 # We must know our byte order
220 # Does GLib define G_GINT64_MODIFIER?
222 AC_MSG_CHECKING([[whether glib.h defines the G_GINT64_MODIFIER macro]])
228 #if GTK_MAJOR_VERSION >= 2
229 #include <glib/gprintf.h>
236 g_snprintf(strbuf, sizeof strbuf, "%" G_GINT64_MODIFIER "x\n", (gint64)1);
245 AC_WIRETAP_CHECK_64BIT_FORMAT(ll,
247 AC_WIRETAP_CHECK_64BIT_FORMAT(L,
249 AC_WIRETAP_CHECK_64BIT_FORMAT(q,
251 AC_MSG_ERROR([neither %llx nor %Lx nor %qx worked on a 64-bit integer])
258 # Look for libpcap, so we can include <pcap.h> in libpcap.c if it's
261 # "--with-pcap" is merely done to allow the user to specify a directory
262 # in which to look for <pcap.h> (and so that specifying it to the
263 # top-level Wireshark configure script specifies it to the Wiretap
264 # configure script as well); we search for it regardless of whether
265 # "--without-pcap" was specified, as Wiretap isn't linked with it and
266 # there's no benefit to not looking for the header.
269 [ --with-pcap=DIR libpcap is located in directory DIR.],
271 if test $withval != yes -a $withval != no
278 AC_WIRETAP_PCAP_CHECK
281 AC_MSG_CHECKING(whether to use zlib for reading compressed capture files)
284 [ --with-zlib[=DIR] use zlib (located in directory DIR, if supplied) to read compressed data. [default=yes, if present]],
286 if test $withval = no
289 elif test $withval = yes
298 # Use zlib if it's present, otherwise don't.
303 if test "x$want_zlib" = "xno" ; then
307 AC_WIRETAP_ZLIB_CHECK
308 if test "x$want_zlib" = "xno" ; then
309 AC_MSG_RESULT(zlib not found - disabling compressed capture file support)