# Configure paths for SDL
# Sam Lantinga 9/21/99
# stolen from Manish Singh
# stolen back from Frank Belew
# stolen from Manish Singh
# Shamelessly stolen from Owen Taylor
AC_DEFUN([AC_DEFINE_DIR], [
prefix_NONE=
exec_prefix_NONE=
test "x$prefix" = xNONE && prefix_NONE=yes &&
prefix=$ac_default_prefix
test "x$exec_prefix" = xNONE && exec_prefix_NONE=yes &&
exec_prefix=$prefix
dnl In Autoconf 2.60, ${datadir} refers to ${datarootdir}, which in turn
dnl refers to ${prefix}. Thus we have to use `eval' twice.
eval ac_define_dir="\"[$]$2\""
eval ac_define_dir="\"$ac_define_dir\""
AC_SUBST($1, "$ac_define_dir")
AC_DEFINE_UNQUOTED($1, "$ac_define_dir", [$3])
test "$prefix_NONE" && prefix=NONE
test "$exec_prefix_NONE" && exec_prefix=NONE
])
dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
dnl
AC_DEFUN(AM_PATH_SDL,
[dnl
dnl Get the cflags and libraries from the sdl-config script
dnl
AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)],
sdl_prefix="$withval", sdl_prefix="")
AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
sdl_exec_prefix="$withval", sdl_exec_prefix="")
AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program],
, enable_sdltest=yes)
if test x$sdl_exec_prefix != x ; then
sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
if test x${SDL_CONFIG+set} != xset ; then
SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
fi
fi
if test x$sdl_prefix != x ; then
sdl_args="$sdl_args --prefix=$sdl_prefix"
if test x${SDL_CONFIG+set} != xset ; then
SDL_CONFIG=$sdl_prefix/bin/sdl-config
fi
fi
AC_PATH_PROG(SDL_CONFIG, sdl-config, no)
min_sdl_version=ifelse([$1], ,0.11.0,$1)
AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
no_sdl=""
if test "$SDL_CONFIG" = "no" ; then
no_sdl=yes
else
SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
if test "x$enable_sdltest" = "xyes" ; then
ac_save_CFLAGS="$CFLAGS"
ac_save_LIBS="$LIBS"
CFLAGS="$CFLAGS $SDL_CFLAGS"
LIBS="$LIBS $SDL_LIBS"
dnl
dnl Now check if the installed SDL is sufficiently new. (Also sanity
dnl checks the results of sdl-config to some extent
dnl
rm -f conf.sdltest
AC_TRY_RUN([
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "SDL.h"
char*
my_strdup (char *str)
{
char *new_str;
if (str)
{
new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
strcpy (new_str, str);
}
else
new_str = NULL;
return new_str;
}
int main (int argc, char *argv[])
{
int major, minor, micro;
char *tmp_version;
/* This hangs on some systems (?)
system ("touch conf.sdltest");
*/
{ FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
/* HP/UX 9 (%@#!) writes to sscanf strings */
tmp_version = my_strdup("$min_sdl_version");
if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) {
printf("%s, bad version string\n", "$min_sdl_version");
exit(1);
}
if (($sdl_major_version > major) ||
(($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
(($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
{
return 0;
}
else
{
printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
printf("*** best to upgrade to the required version.\n");
printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
printf("*** to point to the correct copy of sdl-config, and remove the file\n");
printf("*** config.cache before re-running configure\n");
return 1;
}
}
],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
if test "x$no_sdl" = x ; then
AC_MSG_RESULT(yes)
ifelse([$2], , :, [$2])
else
AC_MSG_RESULT(no)
if test "$SDL_CONFIG" = "no" ; then
echo "*** The sdl-config script installed by SDL could not be found"
echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
echo "*** your path, or set the SDL_CONFIG environment variable to the"
echo "*** full path to sdl-config."
else
if test -f conf.sdltest ; then
:
else
echo "*** Could not run SDL test program, checking why..."
CFLAGS="$CFLAGS $SDL_CFLAGS"
LIBS="$LIBS $SDL_LIBS"
AC_TRY_LINK([
#include <stdio.h>
#include "SDL.h"
], [ return 0; ],
[ echo "*** The test program compiled, but did not run. This usually means"
echo "*** that the run-time linker is not finding SDL or finding the wrong"
echo "*** version of SDL. If it is not finding SDL, 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 SDL was incorrectly installed"
echo "*** or that you have moved SDL since it was installed. In the latter case, you"
echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
CFLAGS="$ac_save_CFLAGS"
LIBS="$ac_save_LIBS"
fi
fi
SDL_CFLAGS=""
SDL_LIBS=""
ifelse([$3], , :, [$3])
fi
AC_SUBST(SDL_CFLAGS)
AC_SUBST(SDL_LIBS)
rm -f conf.sdltest
])
dnl Available from the GNU Autoconf Macro Archive at:
dnl http://www.gnu.org/software/ac-archive/htmldoc/mdl_have_opengl.html
dnl
AC_DEFUN([MDL_HAVE_OPENGL],
[
AC_REQUIRE([AC_PROG_CC])
AC_REQUIRE([AC_PATH_X])
AC_REQUIRE([AC_PATH_XTRA])
AC_CACHE_CHECK([for OpenGL], mdl_cv_have_OpenGL,
[
dnl Don't check for Mesa first, vendor specific is usually more optimized
dnl Check for Mesa first, unless we were asked not to.
dnl AC_ARG_WITH([--with-Mesa],
dnl [Prefer the Mesa library over a vendors native OpenGL library (default=yes)],
dnl with_Mesa_help_string)
dnl AC_ARG_ENABLE(Mesa, $with_Mesa_help_string, use_Mesa=$enableval, use_Mesa=yes)
dnl if test x"$use_Mesa" = xyes; then
dnl GL_search_list="MesaGL GL"
dnl GLU_search_list="MesaGLU GLU"
dnl GLX_search_list="MesaGLX GLX"
dnl else
GL_search_list="GL MesaGL"
GLU_search_list="GLU MesaGLU"
GLX_search_list="GLX MesaGLX"
dnl fi
AC_LANG_SAVE
AC_LANG_C
dnl If we are running under X11 then add in the appropriate libraries.
if test x"$no_x" != xyes; then
dnl Add everything we need to compile and link X programs to GL_X_CFLAGS
dnl and GL_X_LIBS.
GL_CFLAGS="$X_CFLAGS"
GL_X_LIBS="$X_PRE_LIBS $X_LIBS -lX11 -lXext -lXmu -lXt -lXi $X_EXTRA_LIBS"
fi
GL_save_CPPFLAGS="$CPPFLAGS"
CPPFLAGS="$GL_CFLAGS"
GL_save_LIBS="$LIBS"
LIBS="$GL_X_LIBS"
# Save the "AC_MSG_RESULT file descriptor" to FD 8.
exec 8>&AC_FD_MSG
# Temporarily turn off AC_MSG_RESULT so that the user gets pretty
# messages.
exec AC_FD_MSG>/dev/null
AC_SEARCH_LIBS(glAccum, $GL_search_list, have_GL=yes, have_GL=no)
AC_SEARCH_LIBS(gluBeginCurve, $GLU_search_list, have_GLU=yes, have_GLU=no)
AC_SEARCH_LIBS(glXChooseVisual, $GLX_search_list, have_GLX=yes, have_GLX=no)
AC_SEARCH_LIBS(glutInit, glut, have_glut=yes, have_glut=no)
# Restore pretty messages.
exec AC_FD_MSG>&8
if test -n "$LIBS"; then
mdl_cv_have_OpenGL=yes
GL_LIBS="$LIBS"
AC_SUBST(GL_CFLAGS)
AC_SUBST(GL_LIBS)
else
mdl_cv_have_OpenGL=no
GL_CFLAGS=
fi
dnl Reset GL_X_LIBS regardless, since it was just a temporary variable
dnl and we don't want to be global namespace polluters.
GL_X_LIBS=
LIBS="$GL_save_LIBS"
CPPFLAGS="$GL_save_CPPFLAGS"
AC_LANG_RESTORE
dnl bugfix: dont forget to cache this variables, too
mdl_cv_GL_CFLAGS="$GL_CFLAGS"
mdl_cv_GL_LIBS="$GL_LIBS"
mdl_cv_have_GL="$have_GL"
mdl_cv_have_GLU="$have_GLU"
mdl_cv_have_GLX="$have_GLX"
mdl_cv_have_glut="$have_glut"
])
GL_CFLAGS="$mdl_cv_GL_CFLAGS"
GL_LIBS="$mdl_cv_GL_LIBS"
have_GL="$mdl_cv_have_GL"
have_GLU="$mdl_cv_have_GLU"
have_GLX="$mdl_cv_have_GLX"
have_glut="$mdl_cv_have_glut"
])
dnl endof bugfix -ainan