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Rather than code which doesn't even work properly when cross compiling,
lets just use pkg-config instead. Its a little simpler.
RP 2014/6/20
Upstream-Status: Pending
Index: SDL-1.2.15/sdl.m4
===================================================================
--- SDL-1.2.15.orig/sdl.m4
+++ SDL-1.2.15/sdl.m4
@@ -12,174 +12,8 @@ dnl Test for SDL, and define SDL_CFLAGS
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$sdl_exec_prefix != x ; then
- sdl_config_args="$sdl_config_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_config_args="$sdl_config_args --prefix=$sdl_prefix"
- if test x${SDL_CONFIG+set} != xset ; then
- SDL_CONFIG=$sdl_prefix/bin/sdl-config
- fi
- fi
-
- as_save_PATH="$PATH"
- if test "x$prefix" != xNONE; then
- PATH="$prefix/bin:$prefix/usr/bin:$PATH"
- fi
- AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
- PATH="$as_save_PATH"
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 $sdl_config_args --cflags`
- SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs`
-
- sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
- sdl_minor_version=`$SDL_CONFIG $sdl_config_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_CXXFLAGS="$CXXFLAGS"
- ac_save_LIBS="$LIBS"
- CFLAGS="$CFLAGS $SDL_CFLAGS"
- CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
- LIBS="$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"
- CXXFLAGS="$ac_save_CXXFLAGS"
- LIBS="$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 $SDL_CFLAGS"
- CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
- LIBS="$LIBS $SDL_LIBS"
- AC_TRY_LINK([
-#include <stdio.h>
-#include "SDL.h"
-
-int main(int argc, char *argv[])
-{ return 0; }
-#undef main
-#define main K_and_R_C_main
-], [ 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"
- CXXFLAGS="$ac_save_CXXFLAGS"
- LIBS="$ac_save_LIBS"
- fi
- fi
- SDL_CFLAGS=""
- SDL_LIBS=""
- ifelse([$3], , :, [$3])
- fi
+ PKG_CHECK_MODULES([SDL], [sdl >= $min_sdl_version])
AC_SUBST(SDL_CFLAGS)
AC_SUBST(SDL_LIBS)
- rm -f conf.sdltest
])
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