I raised an issue with the libSDL project that their provided automake
macro is incapable of detecting and configuring their provided runtime
framework. Sam Lantinga responded with: "I typically build and install SDL on
Mac OS X using the unix style configure/install which works fine. Can you
submit a patch for sdl.m4 which does the right thing for you? I'm attaching
the file for you." I don't speak M4 and have only rudimentary understanding of
frameworks. However, it does seem like the macro is searching for a file
called 'sdl-config' and i don't see such a file inside the SDL framework. At
this point i'm not sure if:
1) 'sdl-config' is in the framework but hidden.
2) The framework needs to be built differently to include 'sdl-config'.
3) The macro needs to test for some other file inside the framework.
Here is the M4 file:
> # 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
>
> # serial 1
>
> 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_SDL2],
> [dnl
> dnl Get the cflags and libraries from the sdl2-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)
>
> min_sdl_version=ifelse([$1], ,0.9.0,$1)
>
> if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
> PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version],
> [sdl_pc=yes],
> [sdl_pc=no])
> else
> sdl_pc=no
> if test x$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/sdl2-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=$sdl_prefix/bin/sdl2-config
> fi
> fi
> fi
>
> if test "x$sdl_pc" = xyes ; then
> no_sdl=""
> SDL_CONFIG="pkg-config sdl2"
> else
> as_save_PATH="$PATH"
> if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then
> PATH="$prefix/bin:$prefix/usr/bin:$PATH"
> fi
> AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH])
> PATH="$as_save_PATH"
> 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 $SDL_LIBS"
> dnl
> dnl Now check if the installed SDL is sufficiently new. (Also sanity
> dnl checks the results of sdl2-config to some extent
> dnl
> rm -f conf.sdltest
> AC_TRY_RUN([
> #include <stdio.h>
> #include <stdlib.h>
> #include <string.h>
> #include "SDL.h"
>
> char*
> my_strdup (char *str)
> {
> char *new_str;
>
> if (str)
> {
> new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
> strcpy (new_str, str);
> }
> else
> new_str = NULL;
>
> return new_str;
> }
>
> int main (int argc, char *argv[])
> {
> int major, minor, micro;
> char *tmp_version;
>
> /* This hangs on some systems (?)
> system ("touch conf.sdltest");
> */
> { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
>
> /* HP/UX 9 (%@#!) writes to sscanf strings */
> tmp_version = my_strdup("$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*** 'sdl2-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 sdl2-config is correct,
> then it is\n", major, minor, micro);
> printf("*** best to upgrade to the required version.\n");
> printf("*** If sdl2-config was wrong, set the environment variable
> SDL_CONFIG\n");
> printf("*** to point to the correct copy of sdl2-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$no_sdl" = x ; then
> AC_MSG_RESULT(yes)
> else
> AC_MSG_RESULT(no)
> fi
> fi
> if test "x$no_sdl" = x ; then
> ifelse([$2], , :, [$2])
> else
> if test "$SDL_CONFIG" = "no" ; then
> echo "*** The sdl2-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 sdl2-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 sdl2-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
> AC_SUBST(SDL_CFLAGS)
> AC_SUBST(SDL_LIBS)
> rm -f conf.sdltest
> ])
All pointers and assistance gratefully accepted.
sent from Lion
Mal: "Next time you want to stab me in the back, have the guts to do it to my
face."
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