+dnl ---------------------------------------------------------------------------
+dnl Checks for compiler characteristics
+dnl ---------------------------------------------------------------------------
+
+dnl defines const to be empty if c-compiler does not support const fully
+AC_C_CONST
+dnl defines inline to a sensible value for the c-compiler
+AC_C_INLINE
+
+dnl check the sizes of integral types (give some reasonable default values for
+dnl cross-compiling)
+dnl defines the size of certain types of variables in SIZEOF_<TYPE>
+AC_CHECK_SIZEOF(char, 1)
+AC_CHECK_SIZEOF(wchar_t, 4)
+AC_CHECK_SIZEOF(short, 2)
+AC_CHECK_SIZEOF(int *, 4)
+AC_CHECK_SIZEOF(int, 4)
+AC_CHECK_SIZEOF(long, 4)
+AC_CHECK_SIZEOF(long long, 0)
+
+dnl for bytesex stuff (don't use AC_C_BIGENDIAN to allow cross-compiling)
+WX_C_BIGENDIAN
+
+dnl check for iostream (as opposed to iostream.h) standard header
+WX_CPP_NEW_HEADERS(, AC_DEFINE(wxUSE_IOSTREAMH))
+
+dnl check whether C++ compiler supports bool built-in type
+WX_CPP_BOOL
+
+dnl check whether we should define _GNU_SOURCE
+WX_GNU_EXTENSIONS
+
+dnl ---------------------------------------------------------------------------
+dnl Check for functions
+dnl ---------------------------------------------------------------------------
+
+dnl check for wcslen
+AC_CHECK_LIB(c, wcslen, [
+ AC_DEFINE(HAVE_WCSLEN)
+ WCHAR_LINK=""
+ ], [
+ AC_CHECK_LIB(w, wcslen, [
+ AC_DEFINE(HAVE_WCSLEN)
+ WCHAR_LINK="-lw"
+ ])
+ ])
+
+dnl check for vprintf/vsprintf() which are GNU extensions
+AC_FUNC_VPRINTF
+
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+
+dnl check for vsscanf() and vsnprintf() - on some platforms (Linux, glibc
+dnl 2.1.1 for the first one, HP-UX for the second) it's available in the
+dnl library but the prototype is missing, so we can't use AC_CHECK_FUNCS here,
+dnl do it manually
+
+dnl we use AC_TRY_COMPILE() here instead of AC_TRY_RUN() to make the checks
+dnl work for cross-compilation, but AC_TRY_COMPILE() normally only compiles
+dnl one function while we need at least 2 - hence the ugly hack below. To
+dnl understand why it works, remember that AC_TRY_COMPILE() just prepends
+dnl "int main() {" in the beginning of the code and "; return 0; }" at the
+dnl end...
+
+dnl check for vsnprintf() - a safe version of vsprintf()
+AC_CACHE_CHECK([for vsnprintf], wx_cv_func_vsnprintf,
+[
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #include <stdarg.h>
+ ], [
+ int wx_test_vsnprintf(const char *, ...);
+
+ wx_test_vsnprintf("%s");
+ return 0;
+ }
+
+ int wx_test_vsnprintf(const char *fmt, ...)
+ {
+ char *s;
+
+ va_list argp;
+ va_start(argp, fmt);
+ vsnprintf(s, 42, fmt, argp);
+ va_end(argp);
+ ], [
+ AC_DEFINE(HAVE_VSNPRINTF)
+ wx_cv_func_vsnprintf=yes
+ ], [
+ AC_MSG_WARN(unsafe function sprintf will be used instead of snprintf)
+ wx_cv_func_vsnprintf=no
+ ])
+])
+
+dnl check for vsscanf()
+AC_CACHE_CHECK([for vsscanf], wx_cv_func_vsscanf,
+[
+ AC_TRY_COMPILE([
+ #include <stdio.h>
+ #include <stdarg.h>
+ ], [
+ int wx_test_vsscanf(const char *, ...);
+
+ wx_test_vsscanf("%d");
+ return 0;
+ }
+
+ int wx_test_vsscanf(const char *fmt, ...)
+ {
+ va_list argp;
+ va_start(argp, fmt);
+ vsscanf("42", fmt, argp);
+ va_end(argp);
+ ], [
+ AC_DEFINE(HAVE_VSSCANF)
+ wx_cv_func_vsscanf=yes
+ ], [
+ wx_cv_func_vsscanf=no
+ ])
+])
+
+AC_LANG_RESTORE
+
+dnl the following tests are for Unix(like) systems only
+if test "$TOOLKIT" != "MSW"; then
+
+dnl check for POSIX signals if we need them
+if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes" -a "$wxUSE_UNIX" = "yes"; then
+ AC_CHECK_FUNCS(sigaction)
+
+ if test "$ac_cv_func_sigaction" = "no"; then
+ AC_MSG_WARN([No POSIX signal functions on this system, wxApp::OnFatalException will not be called])
+ wxUSE_ON_FATAL_EXCEPTION=no
+ fi
+
+ if test "$wxUSE_ON_FATAL_EXCEPTION" = "yes"; then
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ AC_CACHE_CHECK([for sa_handler type], wx_cv_type_sa_handler,
+ [
+ AC_TRY_COMPILE([#include <signal.h>],
+ [
+ extern void testSigHandler(int);
+
+ struct sigaction sa;
+ sa.sa_handler = testSigHandler;
+ ], [
+ wx_cv_type_sa_handler=int
+ ], [
+ wx_cv_type_sa_handler=void
+ ])
+ ])
+
+ AC_LANG_RESTORE
+
+ AC_DEFINE_UNQUOTED(wxTYPE_SA_HANDLER, $wx_cv_type_sa_handler)
+ fi
+fi
+
+dnl check for vfork() (even if it's the same as fork() in modern Unices)
+AC_CHECK_FUNCS(vfork)
+
+dnl check for timegm() used by datetime.cpp
+AC_CHECK_FUNCS(timegm)
+
+HAVE_SOME_SLEEP_FUNC=0
+if test "$USE_BEOS" = 1; then
+ dnl BeOS has its own (wonder where did they get it from) sleep() function
+ dnl in unistd.h
+ AC_DEFINE(HAVE_SLEEP)
+ HAVE_SOME_SLEEP_FUNC=1
+fi
+
+if test "$HAVE_SOME_SLEEP_FUNC" != 1; then
+ dnl try nanosleep() in libc and libposix4, if this fails - usleep()
+ POSIX4_LINK=
+ AC_CHECK_FUNCS(nanosleep,
+ AC_DEFINE(HAVE_NANOSLEEP),
+ [
+ AC_CHECK_LIB(posix4, nanosleep,
+ [
+ AC_DEFINE(HAVE_NANOSLEEP)
+ POSIX4_LINK="-lposix4"
+ ],
+ [
+ AC_CHECK_FUNCS(usleep)
+ AC_MSG_WARN([wxSleep() function will not work])
+ ]
+ )
+ ]
+ )
+fi
+
+dnl check for uname (POSIX) and gethostname (BSD)
+AC_CHECK_FUNCS(uname gethostname, break)
+
+dnl check for MT-safe version of strtok (on DEC Alpha, it's ok for C compiler
+dnl but not for C++ one - hence change language)
+AC_LANG_SAVE
+AC_LANG_CPLUSPLUS
+
+AC_CHECK_FUNCS(strtok_r)
+
+AC_LANG_RESTORE
+
+dnl check for inet_addr and inet_aton (these may live either in libc, or in
+dnl libnsl or libresolv)
+INET_LINK=
+AC_CHECK_FUNCS(inet_addr,
+ AC_DEFINE(HAVE_INET_ADDR),
+ [
+ AC_CHECK_LIB(nsl, inet_addr,
+ INET_LINK="nsl",
+ AC_CHECK_LIB(resolv, inet_addr,
+ INET_LINK="resolv"
+ )
+ )
+ ]
+)
+
+AC_CHECK_FUNCS(inet_aton,
+ AC_DEFINE(HAVE_INET_ATON),
+ [
+ dnl only check it in the same lib
+ AC_CHECK_LIB($INET_LINK, inet_aton, AC_DEFINE(HAVE_INET_ATON))
+ ])
+
+if test "x$INET_LINK" != "x"; then
+ AC_DEFINE(HAVE_INET_ADDR)
+ INET_LINK="-l$INET_LINK"
+fi
+
+fi
+dnl if !MSW
+
+dnl ===========================================================================
+dnl Now we have all the info we need - use it!
+dnl ===========================================================================
+
+dnl flush the cache
+AC_CACHE_SAVE
+
+dnl ---------------------------------------------------------------------------
+dnl thread support for Unix (always available under Win32)
+dnl ---------------------------------------------------------------------------
+
+dnl under MSW we always have thread support
+if test "$TOOLKIT" != "MSW"; then
+
+dnl the code below:
+dnl defines THREADS_OBJ which contains the object files to build
+dnl defines THREADS_LINK which contains the thread library to link with
+dnl defines wxUSE_THREADS=1 if thread support is activated
+
+THREADS_LINK=""
+THREADS_OBJ=""
+
+if test "$wxUSE_THREADS" = "yes" ; then
+ if test "$wxUSE_WINE" = 1 ; then
+ AC_MSG_WARN([Threads are not supported under WINE])
+ wxUSE_THREADS="no"
+ elif test "$USE_BEOS" = 1; then
+ AC_MSG_WARN([BeOS threads are not yet supported])
+ wxUSE_THREADS="no"
+ fi
+fi
+
+if test "$wxUSE_THREADS" = "yes" ; then
+ dnl find if POSIX threads are available
+
+ dnl AIX calls the library libpthreads - thanks IBM!
+ if test "$wxUSE_AIX" = 1; then
+ THREADS_LIB=pthreads
+ else
+ THREADS_LIB=pthread
+ fi
+
+ dnl standard lib name is pthread
+ dnl We no longer test for pthread-0.7 as it breaks compilation on some
+ dnl glibc2 systems, especially for static linkage.
+ AC_CHECK_LIB($THREADS_LIB, pthread_create, [
+ THREADS_OBJ="threadpsx.lo"
+ THREADS_LINK=$THREADS_LIB
+ ], [
+ dnl thread functions are in libc_r under FreeBSD
+ AC_CHECK_LIB(c_r, pthread_create, [
+ THREADS_OBJ="threadpsx.lo"
+ THREADS_LINK="c_r"
+ ], [
+ dnl VZ: SGI threads are not supported currently
+ AC_CHECK_HEADER(sys/prctl.h, [
+ THREADS_OBJ="threadsgi.lo"
+ ])
+ ])
+ ])
+
+ if test -z "$THREADS_OBJ" ; then
+ wxUSE_THREADS=no
+ AC_MSG_WARN(No thread support on this system)
+ fi
+fi
+
+dnl do other tests only if we are using threads
+if test "$wxUSE_THREADS" = "yes" ; then
+ AC_CHECK_FUNCS(thr_setconcurrency)
+
+ dnl define autoconf macro to check for given function in both pthread and
+ dnl posix4 libraries
+ dnl usage: AC_FUNC_THREAD(FUNCTION_NAME)
+ dnl VZ: TODO
+ dnl AC_DEFUN(AC_FUNC_THREAD,
+ dnl [
+ dnl AC_CHECK_LIB($THREADS_LINK, $1,
+ dnl AC_DEFINE(HAVE_`'translit($1, `A-Z', 'a-z'),
+ dnl [AC_CHECK_LIB("posix4", $1,
+ dnl [AC_DEFINE(HAVE_`'translit($1, `A-Z', 'a-z'))
+ dnl POSIX4_LINK="-lposix4"
+ dnl ])
+ dnl ])
+ dnl ])
+
+ AC_CHECK_HEADERS(sched.h)
+
+ AC_CHECK_LIB($THREADS_LINK, sched_yield,
+ AC_DEFINE(HAVE_SCHED_YIELD),
+ [AC_CHECK_LIB("posix4", sched_yield,
+ [AC_DEFINE(HAVE_SCHED_YIELD) POSIX4_LINK="-lposix4"],
+ AC_MSG_WARN(wxThread::Yield will not work properly)
+ )]
+ )
+
+ dnl to be able to set the thread priority, we need to have all of the
+ dnl following functions:
+ dnl 1. pthread_attr_getschedpolicy
+ dnl 2. sched_get_priority_min and sched_get_priority_max
+ dnl (this one can be in either libpthread or libposix4 (under Solaris))
+ dnl 3. pthread_attr_getschedparam and pthread_attr_setschedparam
+ HAVE_PRIOR_FUNCS=0
+ AC_CHECK_LIB($THREADS_LINK, pthread_attr_getschedpolicy,
+ AC_CHECK_LIB($THREADS_LINK, pthread_attr_setschedparam,
+ AC_CHECK_LIB($THREADS_LINK, sched_get_priority_max,
+ HAVE_PRIOR_FUNCS=1,
+ AC_CHECK_LIB("posix4", sched_get_priority_max,
+ [
+ HAVE_PRIOR_FUNCS=1
+ POSIX4_LINK="-lposix4"
+ ],
+ )
+ )
+ )
+ )
+
+ if test "$HAVE_PRIOR_FUNCS" = 1; then
+ AC_DEFINE(HAVE_THREAD_PRIORITY_FUNCTIONS)
+ else
+ AC_MSG_WARN(Setting thread priority will not work)
+ fi
+
+ AC_CHECK_LIB($THREADS_LINK, pthread_cancel,
+ AC_DEFINE(HAVE_PTHREAD_CANCEL),
+ AC_MSG_WARN([wxThread::Kill() will not work properly]))
+
+ AC_CACHE_CHECK([for pthread_cleanup_push/pop], wx_cv_func_pthread_cleanup_push,
+ [
+ AC_TRY_COMPILE([#include <pthread.h>],
+ [
+ pthread_cleanup_push(NULL, NULL);
+ pthread_cleanup_pop(0);
+ ], [
+ wx_cv_func_pthread_cleanup_push=yes
+ AC_DEFINE(HAVE_THREAD_CLEANUP_FUNCTIONS)
+ ], [
+ wx_cv_func_pthread_cleanup_push=no
+ ])
+ ])
+
+ THREADS_LINK="-l$THREADS_LINK"
+fi
+
+dnl from if !MSW
+fi
+
+if test "$wxUSE_THREADS" = "yes"; then
+ AC_DEFINE(wxUSE_THREADS)
+
+ dnl must define _REENTRANT for multithreaded code
+ CFLAGS="${CFLAGS} -D_REENTRANT"
+ CXXFLAGS="${CXXFLAGS} -D_REENTRANT"
+
+ SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS thread"
+else
+ dnl on some systems, _REENTRANT should be defined if we want to use any _r()
+ dnl functions - add tests for other functions here as well
+ if test "$ac_cv_func_strtok_r" = "yes"; then
+ AC_MSG_CHECKING(if -D_REENTRANT is needed)
+ if test "$NEEDS_D_REENTRANT_FOR_R_FUNCS" = 1; then
+ CFLAGS="${CFLAGS} -D_REENTRANT"
+ CXXFLAGS="${CXXFLAGS} -D_REENTRANT"
+ AC_MSG_RESULT(yes)
+ else
+ AC_MSG_RESULT(no)
+ fi
+ fi
+fi
+
+if test "$WXGTK20" = 1 ; then
+ AC_DEFINE_UNQUOTED(__WXGTK20__,$WXGTK20)
+ WXGTK12=1
+fi
+
+if test "$WXGTK12" = 1 ; then
+ AC_DEFINE_UNQUOTED(__WXGTK12__,$WXGTK12)
+fi
+
+if test "$WXGTK127" = 1 ; then
+ AC_DEFINE_UNQUOTED(__WXGTK127__,$WXGTK127)
+fi
+
+if test "$WXWINE" = 1 ; then
+ TOOLKIT_DEF="${TOOLKIT_DEF} -D__WXWINE__"
+fi
+
+if test "$wxUSE_CYGWIN" = 1 ; then
+ TOOLKIT_DEF="${TOOLKIT_DEF} -D__WIN95__"
+fi
+
+WXDEBUG=
+
+if test "$wxUSE_DEBUG_INFO" = "yes" ; then
+ WXDEBUG="-g"
+ wxUSE_OPTIMISE=no
+fi
+
+if test "$wxUSE_DEBUG_GDB" = "yes" ; then
+ wxUSE_DEBUG_INFO=yes
+ WXDEBUG="-ggdb"
+fi
+
+if test "$wxUSE_DEBUG_FLAG" = "yes" ; then
+ AC_DEFINE(WXDEBUG)
+ WXDEBUG_DEFINE="-D__WXDEBUG__"
+else
+ if test "$wxUSE_GTK" = 1 ; then
+ WXDEBUG_DEFINE="-DGTK_NO_CHECK_CASTS"
+ fi
+fi
+
+if test "$wxUSE_MEM_TRACING" = "yes" ; then
+ AC_DEFINE(wxUSE_MEMORY_TRACING)
+ AC_DEFINE(wxUSE_GLOBAL_MEMORY_OPERATORS)
+ AC_DEFINE(wxUSE_DEBUG_NEW_ALWAYS)
+ SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS memcheck"
+fi
+
+if test "$wxUSE_DMALLOC" = "yes" ; then
+ DMALLOC_LINK="-ldmalloc"
+fi
+
+PROFILE=
+if test "$wxUSE_PROFILE" = "yes" ; then
+ PROFILE="-pg"
+fi
+
+DEP_INFO_FLAGS=
+CODE_GEN_FLAGS=
+if test "$GCC" = yes ; then
+ if test "$wxUSE_NO_RTTI" = "yes" ; then
+ CODE_GEN_FLAGS="$CODE_GEN_FLAGS -fno-rtti"
+ fi
+ if test "$wxUSE_NO_EXCEPTIONS" = "yes" ; then
+ CODE_GEN_FLAGS="$CODE_GEN_FLAGS -fno-exceptions"
+ fi
+ if test "$wxUSE_PERMISSIVE" = "yes" ; then
+ CODE_GEN_FLAGS="$CODE_GEN_FLAGS -fpermissive"
+ fi
+ if test "$wxUSE_NO_DEPS" = "no" ; then
+ DEP_INFO_FLAGS="-MMD"
+ fi
+fi
+
+
+CXXFLAGS=`echo "${CXXFLAGS}" | sed "s/\-O.//g" `
+CFLAGS=`echo "${CFLAGS}" | sed "s/\-O.//g" `
+if test "$wxUSE_OPTIMISE" = "no" ; then
+ OPTIMISE=
+else
+ if test "$GCC" = yes ; then
+ OPTIMISE="-O2"
+ case "${host}" in
+ i586-*-*|i686-*-* )
+ OPTIMISE="${OPTIMISE} "
+ ;;
+ esac
+ else
+ OPTIMISE="-O"
+ fi
+fi
+
+dnl ---------------------------------------------------------------------------
+dnl Optional libraries
+dnl ---------------------------------------------------------------------------
+
+ZLIB_INCLUDE=
+if test "$wxUSE_ZLIB" = "yes" -o "$wxUSE_ZLIB" = "sys" ; then
+ AC_DEFINE(wxUSE_ZLIB)
+ if test "$wxUSE_ZLIB" = "yes" ; then
+ ZLIB_INCLUDE="-I\${top_srcdir}/src/zlib"
+ else
+ ZLIB_LINK=
+ AC_CHECK_HEADER(zlib.h, AC_CHECK_LIB(z, deflate, ZLIB_LINK="-lz"))
+ if test "x$ZLIB_LINK" = "x" ; then
+ AC_MSG_ERROR(system zlib compression library not found! Use --with-zlib=yes to use built-in zlib)
+ fi
+ fi
+fi
+
+PNG_INCLUDE=
+if test "$wxUSE_LIBPNG" = "yes" -o "$wxUSE_LIBPNG" = "sys" ; then
+ AC_DEFINE(wxUSE_LIBPNG)
+ dnl for the check below to have a chance to succeed, we must already have
+ dnl libz somewhere
+ if test "$wxUSE_LIBPNG" = "sys" -a "$wxUSE_ZLIB" != "sys" ; then
+ AC_MSG_WARN([--with-libpng=sys doesn't work without --with-zlib=sys, will compile the built-in libpng instead])
+ wxUSE_LIBPNG=yes
+ fi
+
+ if test "$wxUSE_LIBPNG" = "yes" ; then
+ PNG_INCLUDE="-I\${top_srcdir}/src/png"
+ else
+ PNG_LINK=
+ AC_CHECK_HEADER(png.h,
+ AC_CHECK_LIB(png, png_check_sig,
+ PNG_LINK="-lpng",
+ ,
+ [-lz -lm])
+ )
+ if test "x$PNG_LINK" = "x" ; then
+ AC_MSG_ERROR(system png library not found! Use --with-libpng=yes to use the built-in libpng)
+ fi
+ fi
+
+ SAMPLES_SUBDIRS="$SAMPLES_SUBDIRS png"
+fi
+
+JPEG_INCLUDE=
+if test "$wxUSE_LIBJPEG" = "yes" -o "$wxUSE_LIBJPEG" = "sys" ; then
+ AC_DEFINE(wxUSE_LIBJPEG)
+ if test "$wxUSE_LIBJPEG" = "yes" ; then
+ JPEG_INCLUDE="-I\${top_srcdir}/src/jpeg"
+ else
+ JPEG_LINK=
+ AC_CHECK_HEADER(jpeglib.h, AC_CHECK_LIB(jpeg, jpeg_read_header, JPEG_LINK="-ljpeg"))
+ if test "x$JPEG_LINK" = "x" ; then
+ AC_MSG_ERROR(system jpeg library not found! Use --with-libjpeg=yes to use the built-in one)
+ fi
+ fi
+fi
+
+TIFF_INCLUDE=
+if test "$wxUSE_LIBTIFF" = "yes" -o "$wxUSE_LIBTIFF" = "sys" ; then
+ AC_DEFINE(wxUSE_LIBTIFF)
+ if test "$wxUSE_LIBTIFF" = "yes" ; then
+ TIFF_INCLUDE="-I\${top_srcdir}/src/tiff"
+ else
+ TIFF_LINK=
+ AC_CHECK_HEADER(tiffio.h, AC_CHECK_LIB(tiff, TIFFError,
+ TIFF_LINK="-ltiff",
+ ,
+ -lm))
+ if test "x$TIFF_LINK" = "x" ; then
+ AC_MSG_ERROR(system tiff library not found! Use --with-libtiff=yes to use the built-in one)
+ fi
+ fi
+fi
+
+if test "$wxUSE_OPENGL" = "yes"; then
+ AC_CHECK_HEADER(GL/gl.h, [
+ AC_DEFINE(wxUSE_OPENGL)
+ AC_DEFINE(wxUSE_GLCANVAS)
+ AC_CHECK_LIB(GL, glFlush, [
+ OPENGL_LINK="-lGL -lGLU"
+ ],[
+ AC_CHECK_LIB(MesaGL, glFlush, [
+ OPENGL_LINK="-lMesaGL -lMesaGLU"
+ ],)
+ ],)
+ ],wxUSE_OPENGL=0)
+fi
+
+dnl ---------------------------------------------------------------------------
+dnl the library may be built without GUI classes at all
+dnl ---------------------------------------------------------------------------
+
+if test "$wxUSE_GUI" = "yes"; then
+ AC_DEFINE(wxUSE_GUI)
+
+ dnl the things we always pull in the GUI version of the library:
+ dnl 1. basic things like wxApp, wxWindow, wxControl, wxFrame, wxDialog (the
+ dnl library really can't be built without those)
+ dnl 2. basic controls: wxButton, wxStaticText, wxTextCtrl (these are used in
+ dnl almost any program and the first 2 are needed to show a message box
+ dnl which want to be always able to do)
+ dnl 3. GDI stuff: icon, cursors and all that. Although it would be very nice
+ dnl to compile without them (if the app doesn't do any drawing, it doesn't
+ dnl need the dcs, pens, brushes, ...), this just can't be done now
+ dnl 4. menu stuff: wxMenu, wxMenuBar, wxMenuItem
+ dnl 5. misc stuff: timers, settings, message box
+else
+ AC_DEFINE(wxUSE_NOGUI)
+fi
+
+dnl ---------------------------------------------------------------------------
+dnl Unix/Windows
+dnl ---------------------------------------------------------------------------
+
+if test "$wxUSE_UNIX" = "yes"; then
+ AC_DEFINE(wxUSE_UNIX)
projects / wxWidgets.git / blobdiff