fi
])
+dnl ---------------------------------------------------------------------------
+dnl WX_CPP_EXPLICIT checks whether the C++ compiler support the explicit
+dnl keyword and defines HAVE_EXPLICIT if this is the case
+dnl ---------------------------------------------------------------------------
+
+AC_DEFUN([WX_CPP_EXPLICIT],
+[
+ AC_CACHE_CHECK([if C++ compiler supports the explicit keyword],
+ wx_cv_explicit,
+ [
+ AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+
+ dnl do the test in 2 steps: first check that the compiler knows about the
+ dnl explicit keyword at all and then verify that it really honours it
+ AC_TRY_COMPILE(
+ [
+ class Foo { public: explicit Foo(int) {} };
+ ],
+ [
+ return 0;
+ ],
+ [
+ AC_TRY_COMPILE(
+ [
+ class Foo { public: explicit Foo(int) {} };
+ static void TakeFoo(const Foo& foo) { }
+ ],
+ [
+ TakeFoo(17);
+ return 0;
+ ],
+ wx_cv_explicit=no,
+ wx_cv_explicit=yes
+ )
+ ],
+ wx_cv_explicit=no
+ )
+
+ AC_LANG_RESTORE
+ ])
+
+ if test "$wx_cv_explicit" = "yes"; then
+ AC_DEFINE(HAVE_EXPLICIT)
+ fi
+])
+
dnl ---------------------------------------------------------------------------
dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
dnl ---------------------------------------------------------------------------
dnl "3rd party" macros included here because they are not widely available
dnl ===========================================================================
-
dnl ---------------------------------------------------------------------------
dnl test for availability of iconv()
dnl ---------------------------------------------------------------------------
AC_SUBST(LIBICONV)
])
-
dnl ---------------------------------------------------------------------------
-dnl test for GTK+ 2.0
+dnl AC_SYS_LARGEFILE (partly based on the code from autoconf 2.5x)
dnl ---------------------------------------------------------------------------
-dnl AM_PATH_GTK_2_0([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, MODULES]]]])
-dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
+dnl WX_SYS_LARGEFILE_TEST
dnl
-AC_DEFUN(AM_PATH_GTK_2_0,
-[dnl
-dnl Get the cflags and libraries from the gtk-config-2.0 script
-dnl
-AC_ARG_WITH(gtk-prefix,[ --with-gtk-prefix=PFX Prefix where GTK is installed (optional)],
- gtk_config_prefix="$withval", gtk_config_prefix="")
-AC_ARG_WITH(gtk-exec-prefix,[ --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
- gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
-AC_ARG_ENABLE(gtktest, [ --disable-gtktest Do not try to compile and run a test GTK program],
- , enable_gtktest=yes)
-
- for module in . $4
- do
- case "$module" in
- gthread)
- gtk_config_args="$gtk_config_args gthread"
- ;;
- esac
- done
+dnl NB: original autoconf test was checking if compiler supported 6 bit off_t
+dnl arithmetic properly but this failed miserably with gcc under Linux
+dnl whereas the system still supports 64 bit files, so now simply check
+dnl that off_t is big enough
+define(WX_SYS_LARGEFILE_TEST,
+[typedef struct {
+ unsigned int field: sizeof(off_t) == 8;
+} wxlf;
+])
- if test x$gtk_config_exec_prefix != x ; then
- gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
- if test x${GTK_CONFIG_2_0+set} != xset ; then
- GTK_CONFIG_2_0=$gtk_config_exec_prefix/bin/gtk-config-2.0
- fi
- fi
- if test x$gtk_config_prefix != x ; then
- gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
- if test x${GTK_CONFIG_2_0+set} != xset ; then
- GTK_CONFIG_2_0=$gtk_config_prefix/bin/gtk-config-2.0
- fi
- fi
- AC_PATH_PROG(GTK_CONFIG_2_0, gtk-config-2.0, no)
- min_gtk_version=ifelse([$1], ,1.3.1,$1)
- AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
- no_gtk=""
- if test "$GTK_CONFIG_2_0" = "no" ; then
- no_gtk=yes
- else
- GTK_CFLAGS=`$GTK_CONFIG_2_0 $gtk_config_args --cflags`
- GTK_LIBS=`$GTK_CONFIG_2_0 $gtk_config_args --libs`
- gtk_config_major_version=`$GTK_CONFIG_2_0 $gtk_config_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
- gtk_config_minor_version=`$GTK_CONFIG_2_0 $gtk_config_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
- gtk_config_micro_version=`$GTK_CONFIG_2_0 $gtk_config_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
- if test "x$enable_gtktest" = "xyes" ; then
- ac_save_CFLAGS="$CFLAGS"
- ac_save_LIBS="$LIBS"
- CFLAGS="$CFLAGS $GTK_CFLAGS"
- LIBS="$GTK_LIBS $LIBS"
-dnl
-dnl Now check if the installed GTK is sufficiently new. (Also sanity
-dnl checks the results of gtk-config-2.0 to some extent
-dnl
- rm -f conf.gtktest
- AC_TRY_RUN([
-#include <gtk/gtk.h>
-#include <stdio.h>
-#include <stdlib.h>
+dnl WX_SYS_LARGEFILE_MACRO_VALUE(C-MACRO, VALUE, CACHE-VAR)
+define(WX_SYS_LARGEFILE_MACRO_VALUE,
+[
+ AC_CACHE_CHECK([for $1 value needed for large files], [$3],
+ [
+ AC_TRY_COMPILE([#define $1 $2
+ #include <sys/types.h>],
+ WX_SYS_LARGEFILE_TEST,
+ [$3=$2],
+ [$3=no])
+ ]
+ )
-int
-main ()
-{
- int major, minor, micro;
- char *tmp_version;
-
- system ("touch conf.gtktest");
-
- /* HP/UX 9 (%@#!) writes to sscanf strings */
- tmp_version = g_strdup("$min_gtk_version");
- if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
- printf("%s, bad version string\n", "$min_gtk_version");
- exit(1);
- }
-
- if ((gtk_major_version != $gtk_config_major_version) ||
- (gtk_minor_version != $gtk_config_minor_version) ||
- (gtk_micro_version != $gtk_config_micro_version))
- {
- printf("\n*** 'gtk-config-2.0 --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
- $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
- gtk_major_version, gtk_minor_version, gtk_micro_version);
- printf ("*** was found! If gtk-config-2.0 was correct, then it is best\n");
- printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
- printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
- printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
- printf("*** required on your system.\n");
- printf("*** If gtk-config-2.0 was wrong, set the environment variable GTK_CONFIG_2_0\n");
- printf("*** to point to the correct copy of gtk-config-2.0, and remove the file config.cache\n");
- printf("*** before re-running configure\n");
- }
-#if defined (GTK_MAJOR_VERSION) && defined (GTK_MINOR_VERSION) && defined (GTK_MICRO_VERSION)
- else if ((gtk_major_version != GTK_MAJOR_VERSION) ||
- (gtk_minor_version != GTK_MINOR_VERSION) ||
- (gtk_micro_version != GTK_MICRO_VERSION))
- {
- printf("*** GTK+ header files (version %d.%d.%d) do not match\n",
- GTK_MAJOR_VERSION, GTK_MINOR_VERSION, GTK_MICRO_VERSION);
- printf("*** library (version %d.%d.%d)\n",
- gtk_major_version, gtk_minor_version, gtk_micro_version);
- }
-#endif /* defined (GTK_MAJOR_VERSION) ... */
- else
- {
- if ((gtk_major_version > major) ||
- ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
- ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
- {
- return 0;
- }
- else
- {
- printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
- gtk_major_version, gtk_minor_version, gtk_micro_version);
- printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
- major, minor, micro);
- printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
- printf("***\n");
- printf("*** If you have already installed a sufficiently new version, this error\n");
- printf("*** probably means that the wrong copy of the gtk-config-2.0 shell script is\n");
- printf("*** being found. The easiest way to fix this is to remove the old version\n");
- printf("*** of GTK+, but you can also set the GTK_CONFIG_2_0 environment to point to the\n");
- printf("*** correct copy of gtk-config-2.0. (In this case, you will have to\n");
- printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
- printf("*** so that the correct libraries are found at run-time))\n");
- }
- }
- return 1;
-}
-],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
- CFLAGS="$ac_save_CFLAGS"
- LIBS="$ac_save_LIBS"
- fi
- fi
- if test "x$no_gtk" = x ; then
- AC_MSG_RESULT(yes (version $gtk_config_major_version.$gtk_config_minor_version.$gtk_config_micro_version))
- ifelse([$2], , :, [$2])
- else
- AC_MSG_RESULT(no)
- if test "$GTK_CONFIG_2_0" = "no" ; then
- echo "*** The gtk-config-2.0 script installed by GTK could not be found"
- echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
- echo "*** your path, or set the GTK_CONFIG_2_0 environment variable to the"
- echo "*** full path to gtk-config-2.0."
- else
- if test -f conf.gtktest ; then
- :
- else
- echo "*** Could not run GTK test program, checking why..."
- CFLAGS="$CFLAGS $GTK_CFLAGS"
- LIBS="$LIBS $GTK_LIBS"
- AC_TRY_LINK([
-#include <gtk/gtk.h>
-#include <stdio.h>
-], [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
- [ echo "*** The test program compiled, but did not run. This usually means"
- echo "*** that the run-time linker is not finding GTK or finding the wrong"
- echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
- echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
- echo "*** to the installed location Also, make sure you have run ldconfig if that"
- echo "*** is required on your system"
- echo "***"
- echo "*** If you have an old version installed, it is best to remove it, although"
- echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
- echo "***"
- echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
- echo "*** came with the system with the command"
- echo "***"
- echo "*** rpm --erase --nodeps gtk gtk-devel" ],
- [ echo "*** The test program failed to compile or link. See the file config.log for the"
- echo "*** exact error that occured. This usually means GTK was incorrectly installed"
- echo "*** or that you have moved GTK since it was installed. In the latter case, you"
- echo "*** may want to edit the gtk-config-2.0 script: $GTK_CONFIG_2_0" ])
- CFLAGS="$ac_save_CFLAGS"
- LIBS="$ac_save_LIBS"
- fi
- fi
- GTK_CFLAGS=""
- GTK_LIBS=""
- ifelse([$3], , :, [$3])
- fi
- AC_SUBST(GTK_CFLAGS)
- AC_SUBST(GTK_LIBS)
- rm -f conf.gtktest
+ if test "$$3" != no; then
+ wx_largefile=yes
+ AC_DEFINE_UNQUOTED([$1], [$$3])
+ fi
+])
+
+
+dnl AC_SYS_LARGEFILE
+dnl ----------------
+dnl By default, many hosts won't let programs access large files;
+dnl one must use special compiler options to get large-file access to work.
+dnl For more details about this brain damage please see:
+dnl http://www.sas.com/standards/large.file/x_open.20Mar96.html
+AC_DEFUN([AC_SYS_LARGEFILE],
+[AC_ARG_ENABLE(largefile,
+ [ --disable-largefile omit support for large files])
+if test "$enable_largefile" != no; then
+ dnl _FILE_OFFSET_BITS==64 is needed for Linux, Solaris, ...
+ dnl _LARGE_FILES -- for AIX
+ wx_largefile=no
+ WX_SYS_LARGEFILE_MACRO_VALUE(_FILE_OFFSET_BITS, 64, ac_cv_sys_file_offset_bits)
+ if test "x$wx_largefile" != "xyes"; then
+ WX_SYS_LARGEFILE_MACRO_VALUE(_LARGE_FILES, 1, ac_cv_sys_large_files)
+ fi
+
+ AC_MSG_CHECKING(if large file support is available)
+ if test "x$wx_largefile" = "xyes"; then
+ AC_DEFINE(HAVE_LARGEFILE_SUPPORT)
+ fi
+ AC_MSG_RESULT($wx_largefile)
+fi
])
projects / wxWidgets.git / blobdiff