0,0 → 1,165 |
# 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 |
|
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 $SDL_LIBS" |
dnl |
dnl Now check if the installed SDL is sufficiently new. (Also sanity |
dnl checks the results of sdl-config to some extent |
dnl |
rm -f conf.sdltest |
AC_TRY_RUN([ |
#include <stdio.h> |
#include <stdlib.h> |
#include <string.h> |
#include "SDL.h" |
|
char* |
my_strdup (char *str) |
{ |
char *new_str; |
|
if (str) |
{ |
new_str = malloc ((strlen (str) + 1) * sizeof(char)); |
strcpy (new_str, str); |
} |
else |
new_str = NULL; |
|
return new_str; |
} |
|
int main () |
{ |
int major, minor, micro; |
char *tmp_version; |
|
system ("touch conf.sdltest"); |
|
/* HP/UX 9 (%@#!) writes to sscanf strings */ |
tmp_version = my_strdup("$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 |
]) |