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wxWidgets/acinclude.m4
Vadim Zeitlin 1c405bb510 oops, fixed typo breaking iconv constness detection in the previous commit 
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@13798 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2002-01-25 12:24:44 +00:00

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dnl ---------------------------------------------------------------------------
dnl
dnl Macros for configure.in for wxWindows by Robert Roebling, Phil Blecker,
dnl Vadim Zeitlin and Ron Lee
dnl
dnl This script is under the wxWindows licence.
dnl
dnl Version: $Id$
dnl ---------------------------------------------------------------------------
dnl ===========================================================================
dnl macros to find the a file in the list of include/lib paths
dnl ===========================================================================
dnl ---------------------------------------------------------------------------
dnl call WX_PATH_FIND_INCLUDES(search path, header name), sets ac_find_includes
dnl to the full name of the file that was found or leaves it empty if not found
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_PATH_FIND_INCLUDES],
[
ac_find_includes=
for ac_dir in $1;
do
if test -f "$ac_dir/$2"; then
ac_find_includes=$ac_dir
break
fi
done
])
dnl ---------------------------------------------------------------------------
dnl call WX_PATH_FIND_LIBRARIES(search path, header name), sets ac_find_libraries
dnl to the full name of the file that was found or leaves it empty if not found
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_PATH_FIND_LIBRARIES],
[
ac_find_libraries=
for ac_dir in $1;
do
for ac_extension in a so sl dylib; do
if test -f "$ac_dir/lib$2.$ac_extension"; then
ac_find_libraries=$ac_dir
break 2
fi
done
done
])
dnl ---------------------------------------------------------------------------
dnl Path to include, already defined
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_INCLUDE_PATH_EXIST],
[
ac_path_to_include=$1
echo "$2" | grep "\-I$1" > /dev/null
result=$?
if test $result = 0; then
ac_path_to_include=""
else
ac_path_to_include=" -I$1"
fi
])
dnl ---------------------------------------------------------------------------
dnl Path to link, already defined
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_LINK_PATH_EXIST],
[
echo "$2" | grep "\-L$1" > /dev/null
result=$?
if test $result = 0; then
ac_path_to_link=""
else
ac_path_to_link=" -L$1"
fi
])
dnl ===========================================================================
dnl C++ features test
dnl ===========================================================================
dnl ---------------------------------------------------------------------------
dnl WX_CPP_NEW_HEADERS checks whether the compiler has "new" <iostream> header
dnl or only the old <iostream.h> one - it may be generally assumed that if
dnl <iostream> exists, the other "new" headers (without .h) exist too.
dnl
dnl call WX_CPP_NEW_HEADERS(actiof-if-true, action-if-false-or-cross-compiling)
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_CPP_NEW_HEADERS],
[
if test "$cross_compiling" = "yes"; then
ifelse([$2], , :, [$2])
else
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CHECK_HEADERS(iostream)
if test "$ac_cv_header_iostream" = "yes" ; then
ifelse([$1], , :, [$1])
else
ifelse([$2], , :, [$2])
fi
AC_LANG_RESTORE
fi
])
dnl ---------------------------------------------------------------------------
dnl WX_CPP_BOOL checks whether the C++ compiler has a built in bool type
dnl
dnl call WX_CPP_BOOL - will define HAVE_BOOL if the compiler supports bool
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_CPP_BOOL],
[
AC_CACHE_CHECK([if C++ compiler supports bool], wx_cv_cpp_bool,
[
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_COMPILE(
[
],
[
bool b = true;
return 0;
],
[
wx_cv_cpp_bool=yes
],
[
wx_cv_cpp_bool=no
]
)
AC_LANG_RESTORE
])
if test "$wx_cv_cpp_bool" = "yes"; then
AC_DEFINE(HAVE_BOOL)
fi
])
dnl ---------------------------------------------------------------------------
dnl a slightly better AC_C_BIGENDIAN macro which allows cross-compiling
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_C_BIGENDIAN],
[AC_CACHE_CHECK([whether byte ordering is bigendian], ac_cv_c_bigendian,
[ac_cv_c_bigendian=unknown
# See if sys/param.h defines the BYTE_ORDER macro.
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/param.h>], [
#if !BYTE_ORDER || !BIG_ENDIAN || !LITTLE_ENDIAN
bogus endian macros
#endif], [# It does; now see whether it defined to BIG_ENDIAN or not.
AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/param.h>], [
#if BYTE_ORDER != BIG_ENDIAN
not big endian
#endif], ac_cv_c_bigendian=yes, ac_cv_c_bigendian=no)])
if test $ac_cv_c_bigendian = unknown; then
AC_TRY_RUN([main () {
/* Are we little or big endian? From Harbison&Steele. */
union
{
long l;
char c[sizeof (long)];
} u;
u.l = 1;
exit (u.c[sizeof (long) - 1] == 1);
}], [ac_cv_c_bigendian=no], [ac_cv_c_bigendian=yes], [ac_cv_c_bigendian=unknown])
fi])
if test $ac_cv_c_bigendian = unknown; then
AC_MSG_WARN([Assuming little-endian target machine - this may be overriden by adding the line "ac_cv_c_bigendian=${ac_cv_c_bigendian='yes'}" to config.cache file])
fi
if test $ac_cv_c_bigendian = yes; then
AC_DEFINE(WORDS_BIGENDIAN)
fi
])
dnl ---------------------------------------------------------------------------
dnl override AC_ARG_ENABLE/WITH to cache the results in .cache file
dnl ---------------------------------------------------------------------------
AC_DEFUN([WX_ARG_CACHE_INIT],
[
wx_arg_cache_file="configarg.cache"
echo "loading argument cache $wx_arg_cache_file"
rm -f ${wx_arg_cache_file}.tmp
touch ${wx_arg_cache_file}.tmp
touch ${wx_arg_cache_file}
])
AC_DEFUN([WX_ARG_CACHE_FLUSH],
[
echo "saving argument cache $wx_arg_cache_file"
mv ${wx_arg_cache_file}.tmp ${wx_arg_cache_file}
])
dnl this macro checks for a three-valued command line --with argument:
dnl possible arguments are 'yes', 'no', 'sys', or 'builtin'
dnl usage: WX_ARG_SYS_WITH(option, helpmessage, variable-name)
AC_DEFUN([WX_ARG_SYS_WITH],
[
AC_MSG_CHECKING([for --with-$1])
no_cache=0
AC_ARG_WITH($1, [$2],
[
if test "$withval" = yes; then
ac_cv_use_$1='$3=yes'
elif test "$withval" = no; then
ac_cv_use_$1='$3=no'
elif test "$withval" = sys; then
ac_cv_use_$1='$3=sys'
elif test "$withval" = builtin; then
ac_cv_use_$1='$3=builtin'
else
AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
fi
],
[
LINE=`grep "$3" ${wx_arg_cache_file}`
if test "x$LINE" != x ; then
eval "DEFAULT_$LINE"
else
no_cache=1
fi
ac_cv_use_$1='$3='$DEFAULT_$3
])
eval "$ac_cv_use_$1"
if test "$no_cache" != 1; then
echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
fi
if test "$$3" = yes; then
AC_MSG_RESULT(yes)
elif test "$$3" = no; then
AC_MSG_RESULT(no)
elif test "$$3" = sys; then
AC_MSG_RESULT([system version])
elif test "$$3" = builtin; then
AC_MSG_RESULT([builtin version])
else
AC_MSG_ERROR([Invalid value for --with-$1: should be yes, no, sys, or builtin])
fi
])
dnl this macro checks for a command line argument and caches the result
dnl usage: WX_ARG_WITH(option, helpmessage, variable-name)
AC_DEFUN([WX_ARG_WITH],
[
AC_MSG_CHECKING([for --with-$1])
no_cache=0
AC_ARG_WITH($1, [$2],
[
if test "$withval" = yes; then
ac_cv_use_$1='$3=yes'
else
ac_cv_use_$1='$3=no'
fi
],
[
LINE=`grep "$3" ${wx_arg_cache_file}`
if test "x$LINE" != x ; then
eval "DEFAULT_$LINE"
else
no_cache=1
fi
ac_cv_use_$1='$3='$DEFAULT_$3
])
eval "$ac_cv_use_$1"
if test "$no_cache" != 1; then
echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
fi
if test "$$3" = yes; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
])
dnl like WX_ARG_WITH but uses AC_ARG_ENABLE instead of AC_ARG_WITH
dnl usage: WX_ARG_ENABLE(option, helpmessage, variable-name)
AC_DEFUN([WX_ARG_ENABLE],
[
AC_MSG_CHECKING([for --enable-$1])
no_cache=0
AC_ARG_ENABLE($1, [$2],
[
if test "$enableval" = yes; then
ac_cv_use_$1='$3=yes'
else
ac_cv_use_$1='$3=no'
fi
],
[
LINE=`grep "$3" ${wx_arg_cache_file}`
if test "x$LINE" != x ; then
eval "DEFAULT_$LINE"
else
no_cache=1
fi
ac_cv_use_$1='$3='$DEFAULT_$3
])
eval "$ac_cv_use_$1"
if test "$no_cache" != 1; then
echo $ac_cv_use_$1 >> ${wx_arg_cache_file}.tmp
fi
if test "$$3" = yes; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
])
dnl ===========================================================================
dnl "3rd party" macros included here because they are not widely available
dnl ===========================================================================
dnl ---------------------------------------------------------------------------
dnl test for availability of iconv()
dnl ---------------------------------------------------------------------------
dnl From Bruno Haible.
AC_DEFUN([AM_ICONV],
[
dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
dnl those with the standalone portable GNU libiconv installed).
AC_ARG_WITH([libiconv-prefix],
[ --with-libiconv-prefix=DIR search for libiconv in DIR/include and DIR/lib], [
for dir in `echo "$withval" | tr : ' '`; do
if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
done
])
AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
am_cv_func_iconv="no, consider installing GNU libiconv"
am_cv_lib_iconv=no
AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
am_cv_func_iconv=yes)
if test "$am_cv_func_iconv" != yes; then
am_save_LIBS="$LIBS"
LIBS="$LIBS -liconv"
AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
[iconv_t cd = iconv_open("","");
iconv(cd,NULL,NULL,NULL,NULL);
iconv_close(cd);],
am_cv_lib_iconv=yes
am_cv_func_iconv=yes)
LIBS="$am_save_LIBS"
fi
])
if test "$am_cv_func_iconv" = yes; then
AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
AC_CACHE_CHECK([if iconv needs const], wx_cv_func_iconv_const,
AC_TRY_COMPILE([
#include <stdlib.h>
#include <iconv.h>
extern
#ifdef __cplusplus
"C"
#endif
#if defined(__STDC__) || defined(__cplusplus)
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
#else
size_t iconv();
#endif
],
[],
wx_cv_func_iconv_const="no",
wx_cv_func_iconv_const="yes"
)
)
iconv_const=
if test "x$wx_cv_func_iconv_const" = "xyes"; then
iconv_const="const"
fi
AC_DEFINE_UNQUOTED(ICONV_CONST, $iconv_const,
[Define as const if the declaration of iconv() needs const.])
fi
LIBICONV=
if test "$am_cv_lib_iconv" = yes; then
LIBICONV="-liconv"
fi
AC_SUBST(LIBICONV)
])
dnl ---------------------------------------------------------------------------
dnl test for GTK+ 2.0
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
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="$gtk_config_args gthread"
;;
esac
done
if test x$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 $LIBS"
dnl
dnl Now check if the installed GTK is sufficiently new. (Also sanity
dnl checks the results of gtk-config-2.0 to some extent
dnl
rm -f conf.gtktest
AC_TRY_RUN([
#include <gtk/gtk.h>
#include <stdio.h>
#include <stdlib.h>
int
main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.gtktest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = g_strdup("$min_gtk_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 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
])
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