/usr/share/aclocal/gtkglextmm-1.2.m4 is in libgtkglextmm-x11-1.2-dev 1.2.0-8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Naofumi Yasufuku
#
# Shamelessly stolen from gtk-2.0.m4
# Configure paths for GTK+
# Owen Taylor 1997-2001
dnl AM_PATH_GTKGLEXTMM_1_2([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for gtkglextmm, and define GTKGLEXTMM_CXXFLAGS and GTKGLEXTMM_LIBS.
dnl
AC_DEFUN([AM_PATH_GTKGLEXTMM_1_2],
[ no_gtkglextmm=""
GTKGLEXTMM_CXXFLAGS=""
GTKGLEXTMM_LIBS=""
# gtkglextmm pkg-config module
gtkglextmm_module=gtkglextmm-1.2
# minimum gtkglextmm version
gtkglextmm_min_version=ifelse([$1], ,1.1.0,$1)
# minimum pkg-config version
pkgconfig_min_version=0.7
AC_ARG_ENABLE(gtkglextmm-test,
[ --disable-gtkglextmm-test do not try to compile and run a test gtkglextmm
program],
, enable_gtkglextmm_test=yes)
dnl
dnl Get the cflags and libraries from pkg-config
dnl
pkg_config_modules=$gtkglextmm_module
AC_PATH_PROG(PKG_CONFIG, pkg-config, no)
if test x$PKG_CONFIG != xno ; then
if pkg-config --atleast-pkgconfig-version $pkgconfig_min_version ; then
:
else
echo ""
echo "*** pkg-config too old; version $pkgconfig_min_version or better required."
no_gtkglextmm=yes
PKG_CONFIG=no
fi
else
no_gtkglextmm=yes
fi
AC_MSG_CHECKING(for gtkglextmm - version >= $gtkglextmm_min_version)
if test x$PKG_CONFIG != xno ; then
## don't try to run the test against uninstalled libtool libs
if $PKG_CONFIG --uninstalled $pkg_config_modules; then
echo ""
echo "Will use uninstalled version of gtkglextmm found in PKG_CONFIG_PATH"
enable_gtkglextmm_test=no
fi
if $PKG_CONFIG --atleast-version $gtkglextmm_min_version $pkg_config_modules; then
:
else
echo ""
echo "*** pkg-config cannot find $gtkglextmm_module >= $gtkglextmm_min_version"
echo "*** Set the environment variable PKG_CONFIG_PATH to point to the correct"
echo "*** configuration files."
no_gtkglextmm=yes
enable_gtkglextmm_test=no
fi
fi
if test x"$no_gtkglextmm" = x ; then
GTKGLEXTMM_CXXFLAGS=`$PKG_CONFIG --cflags $pkg_config_modules`
GTKGLEXTMM_LIBS=`$PKG_CONFIG --libs $pkg_config_modules`
gtkglextmm_config_major_version=`$PKG_CONFIG --modversion $gtkglextmm_module | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
gtkglextmm_config_minor_version=`$PKG_CONFIG --modversion $gtkglextmm_module | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
gtkglextmm_config_micro_version=`$PKG_CONFIG --modversion $gtkglextmm_module | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_gtkglextmm_test" = "xyes" ; then
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
ac_save_LIBS="$LIBS"
CXXFLAGS="$CXXFLAGS $GTKGLEXTMM_CXXFLAGS"
LIBS="$GTKGLEXTMM_LIBS $LIBS"
dnl
dnl Now check if the installed gtkglextmm is sufficiently new. (Also sanity
dnl checks the results of pkg-config to some extent)
dnl
rm -f conf.gtkgltest
AC_TRY_RUN([
#include <gtkmm.h>
#include <gtkglmm.h>
#include <stdio.h>
#include <stdlib.h>
int
main ()
{
int major, minor, micro;
char *tmp_version;
system ("touch conf.gtkgltest");
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = g_strdup ("$gtkglextmm_min_version");
if (sscanf (tmp_version, "%d.%d.%d", &major, &minor, µ) != 3)
{
printf ("%s, bad version string\n", "$gtkglextmm_min_version");
exit (1);
}
if ((gtkglextmm_major_version != $gtkglextmm_config_major_version) ||
(gtkglextmm_minor_version != $gtkglextmm_config_minor_version) ||
(gtkglextmm_micro_version != $gtkglextmm_config_micro_version))
{
printf ("\n*** 'pkg-config --modversion $gtkglextmm_module' returned %d.%d.%d, but gtkglextmm\n",
$gtkglextmm_config_major_version, $gtkglextmm_config_minor_version, $gtkglextmm_config_micro_version);
printf ("*** library %d.%d.%d was found!\n",
gtkglextmm_major_version, gtkglextmm_minor_version, gtkglextmm_micro_version);
printf ("***\n");
printf ("*** If pkg-config was correct, then it is best to remove the old version\n");
printf ("*** of gtkglextmm. You may also be able to fix the error by modifying your\n");
printf ("*** LD_LIBRARY_PATH enviroment variable, or by editing /etc/ld.so.conf.\n");
printf ("*** Make sure you have run ldconfig if that is required on your system.\n");
printf ("***\n");
printf ("*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH\n");
printf ("*** to point to the correct configuration files.\n");
}
else if ((gtkglextmm_major_version != GTKGLEXTMM_MAJOR_VERSION) ||
(gtkglextmm_minor_version != GTKGLEXTMM_MINOR_VERSION) ||
(gtkglextmm_micro_version != GTKGLEXTMM_MICRO_VERSION))
{
printf ("\n*** gtkglextmm header files (version %d.%d.%d) do not match library (version %d.%d.%d).\n",
GTKGLEXTMM_MAJOR_VERSION, GTKGLEXTMM_MINOR_VERSION, GTKGLEXTMM_MICRO_VERSION,
gtkglextmm_major_version, gtkglextmm_minor_version, gtkglextmm_micro_version);
}
else
{
if ((gtkglextmm_major_version > major) ||
((gtkglextmm_major_version == major) && (gtkglextmm_minor_version > minor)) ||
((gtkglextmm_major_version == major) && (gtkglextmm_minor_version == minor) && (gtkglextmm_micro_version >= micro)))
{
return 0;
}
else
{
printf ("\n*** An old version of gtkglextmm library (%d.%d.%d) was found.\n",
gtkglextmm_major_version, gtkglextmm_minor_version, gtkglextmm_micro_version);
printf ("*** You need a version of gtkglextmm newer than %d.%d.%d. The latest version of\n",
major, minor, micro);
printf ("*** gtkglextmm is always available from http://gtkglext.sourceforge.net/.\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 pkg-config shell script is\n");
printf ("*** being found. The easiest way to fix this is to remove the old version\n");
printf ("*** of gtkglextmm, but you can also set the PKG_CONFIG environment to point\n");
printf ("*** to the correct copy of pkg-config. (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_gtkglextmm=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
AC_LANG_RESTORE
fi
fi
if test "x$no_gtkglextmm" = x ; then
AC_MSG_RESULT(yes (version $gtkglextmm_config_major_version.$gtkglextmm_config_minor_version.$gtkglextmm_config_micro_version))
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$PKG_CONFIG" = "no" ; then
echo "*** A new enough version of pkg-config was not found."
echo "*** See http://www.freedesktop.org/software/pkgconfig/."
elif test "x$enable_gtkglextmm_test" = "xyes" ; then
if test -f conf.gtkgltest ; then
:
else
echo "*** Could not run gtkglextmm test program, checking why..."
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
ac_save_CXXFLAGS="$CXXFLAGS"
ac_save_LIBS="$LIBS"
CXXFLAGS="$CXXFLAGS $GTKGLEXTMM_CXXFLAGS"
LIBS="$LIBS $GTKGLEXTMM_LIBS"
AC_TRY_LINK([
#include <gtkmm.h>
#include <gtkglmm.h>
#include <stdio.h>
], [ return ((gtkglextmm_major_version) || (gtkglextmm_minor_version) || (gtkglextmm_micro_version)); ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding gtkglextmm or finding the wrong"
echo "*** version of gtkglextmm. If it is not finding gtkglextmm, you'll need to set your"
echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
echo "*** to the installed location Also, make sure you have run ldconfig if that"
echo "*** is required on your system"
echo "***"
echo "*** If you have an old version installed, it is best to remove it, although"
echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH" ],
[ echo "*** The test program failed to compile or link. See the file config.log for the"
echo "*** exact error that occured. This usually means gtkglextmm is incorrectly installed."])
CXXFLAGS="$ac_save_CXXFLAGS"
LIBS="$ac_save_LIBS"
AC_LANG_RESTORE
fi
fi
GTKGLEXTMM_CXXFLAGS=""
GTKGLEXTMM_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(GTKGLEXTMM_CXXFLAGS)
AC_SUBST(GTKGLEXTMM_LIBS)
rm -f conf.gtkgltest
])
dnl AC_GTKGLEXTMM_SUPPORTS_MULTIHEAD([ACTION-IF-SUPPORTED [, ACTION-IF-NOT-SUPPORTED]])
dnl Checks whether gtkglextmm supports multihead.
dnl
AC_DEFUN([AC_GTKGLEXTMM_SUPPORTS_MULTIHEAD],
[ AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_CACHE_CHECK([whether gtkglextmm supports multihead],
[ac_cv_gtkglextmm_supports_multihead],
[AC_TRY_LINK([#include <gdkmm/gl/query.h>],
[Gdk::GL::query_extension(Gdk::Display::get_default());],
[ac_cv_gtkglextmm_supports_multihead=yes],
[ac_cv_gtkglextmm_supports_multihead=no])])
AC_LANG_RESTORE
if test "x$ac_cv_gtkglextmm_supports_multihead" = "xyes" ; then
ifelse([$1], , :, [$1])
else
ifelse([$2], , :, [$2])
fi
])
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