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359 lines
12 KiB
359 lines
12 KiB
# Configure paths for SDL |
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# Sam Lantinga 9/21/99 |
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# stolen from Manish Singh |
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# stolen back from Frank Belew |
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# stolen from Manish Singh |
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# Shamelessly stolen from Owen Taylor |
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# serial 1 |
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dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) |
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dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS |
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dnl |
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AC_DEFUN([AM_PATH_SDL2], |
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[dnl |
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dnl Get the cflags and libraries from the sdl2-config script |
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dnl |
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AC_ARG_WITH(sdl-prefix,[ --with-sdl-prefix=PFX Prefix where SDL is installed (optional)], |
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sdl_prefix="$withval", sdl_prefix="") |
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AC_ARG_WITH(sdl-exec-prefix,[ --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)], |
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sdl_exec_prefix="$withval", sdl_exec_prefix="") |
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AC_ARG_ENABLE(sdltest, [ --disable-sdltest Do not try to compile and run a test SDL program], |
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, enable_sdltest=yes) |
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min_sdl_version=ifelse([$1], ,0.9.0,$1) |
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if test "x$sdl_prefix$sdl_exec_prefix" = x ; then |
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PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version], |
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[sdl_pc=yes], |
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[sdl_pc=no]) |
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else |
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sdl_pc=no |
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if test x$sdl_exec_prefix != x ; then |
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sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix" |
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if test x${SDL_CONFIG+set} != xset ; then |
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SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config |
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fi |
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fi |
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if test x$sdl_prefix != x ; then |
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sdl_config_args="$sdl_config_args --prefix=$sdl_prefix" |
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if test x${SDL_CONFIG+set} != xset ; then |
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SDL_CONFIG=$sdl_prefix/bin/sdl2-config |
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fi |
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fi |
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fi |
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if test "x$sdl_pc" = xyes ; then |
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no_sdl="" |
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SDL_CONFIG="pkg-config sdl2" |
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else |
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as_save_PATH="$PATH" |
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if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then |
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PATH="$prefix/bin:$prefix/usr/bin:$PATH" |
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fi |
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AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH]) |
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PATH="$as_save_PATH" |
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AC_MSG_CHECKING(for SDL - version >= $min_sdl_version) |
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no_sdl="" |
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if test "$SDL_CONFIG" = "no" ; then |
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no_sdl=yes |
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else |
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SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags` |
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SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs` |
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sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \ |
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'` |
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sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \ |
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'` |
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sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \ |
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sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'` |
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if test "x$enable_sdltest" = "xyes" ; then |
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ac_save_CFLAGS="$CFLAGS" |
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ac_save_CXXFLAGS="$CXXFLAGS" |
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ac_save_LIBS="$LIBS" |
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CFLAGS="$CFLAGS $SDL_CFLAGS" |
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CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" |
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LIBS="$LIBS $SDL_LIBS" |
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dnl |
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dnl Now check if the installed SDL is sufficiently new. (Also sanity |
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dnl checks the results of sdl2-config to some extent |
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dnl |
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rm -f conf.sdltest |
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AC_TRY_RUN([ |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include "SDL.h" |
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char* |
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my_strdup (char *str) |
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{ |
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char *new_str; |
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if (str) |
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{ |
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new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char)); |
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strcpy (new_str, str); |
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} |
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else |
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new_str = NULL; |
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return new_str; |
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} |
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int main (int argc, char *argv[]) |
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{ |
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int major, minor, micro; |
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char *tmp_version; |
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/* This hangs on some systems (?) |
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system ("touch conf.sdltest"); |
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*/ |
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{ FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); } |
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/* HP/UX 9 (%@#!) writes to sscanf strings */ |
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tmp_version = my_strdup("$min_sdl_version"); |
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if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, µ) != 3) { |
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printf("%s, bad version string\n", "$min_sdl_version"); |
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exit(1); |
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} |
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if (($sdl_major_version > major) || |
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(($sdl_major_version == major) && ($sdl_minor_version > minor)) || |
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(($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro))) |
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{ |
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return 0; |
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} |
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else |
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{ |
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printf("\n*** 'sdl2-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version); |
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printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro); |
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printf("*** best to upgrade to the required version.\n"); |
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printf("*** If sdl2-config was wrong, set the environment variable SDL_CONFIG\n"); |
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printf("*** to point to the correct copy of sdl2-config, and remove the file\n"); |
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printf("*** config.cache before re-running configure\n"); |
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return 1; |
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} |
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} |
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],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"]) |
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CFLAGS="$ac_save_CFLAGS" |
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CXXFLAGS="$ac_save_CXXFLAGS" |
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LIBS="$ac_save_LIBS" |
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fi |
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fi |
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if test "x$no_sdl" = x ; then |
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AC_MSG_RESULT(yes) |
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else |
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AC_MSG_RESULT(no) |
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fi |
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fi |
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if test "x$no_sdl" = x ; then |
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ifelse([$2], , :, [$2]) |
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else |
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if test "$SDL_CONFIG" = "no" ; then |
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echo "*** The sdl2-config script installed by SDL could not be found" |
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echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in" |
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echo "*** your path, or set the SDL_CONFIG environment variable to the" |
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echo "*** full path to sdl2-config." |
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else |
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if test -f conf.sdltest ; then |
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: |
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else |
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echo "*** Could not run SDL test program, checking why..." |
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CFLAGS="$CFLAGS $SDL_CFLAGS" |
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CXXFLAGS="$CXXFLAGS $SDL_CFLAGS" |
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LIBS="$LIBS $SDL_LIBS" |
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AC_TRY_LINK([ |
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#include <stdio.h> |
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#include "SDL.h" |
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int main(int argc, char *argv[]) |
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{ return 0; } |
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#undef main |
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#define main K_and_R_C_main |
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], [ return 0; ], |
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[ echo "*** The test program compiled, but did not run. This usually means" |
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echo "*** that the run-time linker is not finding SDL or finding the wrong" |
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echo "*** version of SDL. If it is not finding SDL, you'll need to set your" |
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echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point" |
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echo "*** to the installed location Also, make sure you have run ldconfig if that" |
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echo "*** is required on your system" |
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echo "***" |
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echo "*** If you have an old version installed, it is best to remove it, although" |
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echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"], |
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[ echo "*** The test program failed to compile or link. See the file config.log for the" |
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echo "*** exact error that occured. This usually means SDL was incorrectly installed" |
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echo "*** or that you have moved SDL since it was installed. In the latter case, you" |
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echo "*** may want to edit the sdl2-config script: $SDL_CONFIG" ]) |
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CFLAGS="$ac_save_CFLAGS" |
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CXXFLAGS="$ac_save_CXXFLAGS" |
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LIBS="$ac_save_LIBS" |
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fi |
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fi |
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SDL_CFLAGS="" |
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SDL_LIBS="" |
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ifelse([$3], , :, [$3]) |
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fi |
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AC_SUBST(SDL_CFLAGS) |
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AC_SUBST(SDL_LIBS) |
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rm -f conf.sdltest |
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]) |
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# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*- |
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# serial 1 (pkg-config-0.24) |
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# |
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# Copyright © 2004 Scott James Remnant <scott@netsplit.com>. |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# This program is distributed in the hope that it will be useful, but |
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# WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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# General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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# |
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# As a special exception to the GNU General Public License, if you |
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# distribute this file as part of a program that contains a |
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# configuration script generated by Autoconf, you may include it under |
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# the same distribution terms that you use for the rest of that program. |
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# PKG_PROG_PKG_CONFIG([MIN-VERSION]) |
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# ---------------------------------- |
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AC_DEFUN([PKG_PROG_PKG_CONFIG], |
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[m4_pattern_forbid([^_?PKG_[A-Z_]+$]) |
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m4_pattern_allow([^PKG_CONFIG(_PATH)?$]) |
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AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility]) |
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AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path]) |
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AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path]) |
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if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then |
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AC_PATH_TOOL([PKG_CONFIG], [pkg-config]) |
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fi |
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if test -n "$PKG_CONFIG"; then |
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_pkg_min_version=m4_default([$1], [0.9.0]) |
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AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version]) |
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if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then |
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AC_MSG_RESULT([yes]) |
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else |
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AC_MSG_RESULT([no]) |
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PKG_CONFIG="" |
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fi |
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fi[]dnl |
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])# PKG_PROG_PKG_CONFIG |
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# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) |
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# |
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# Check to see whether a particular set of modules exists. Similar |
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# to PKG_CHECK_MODULES(), but does not set variables or print errors. |
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# |
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# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
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# only at the first occurence in configure.ac, so if the first place |
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# it's called might be skipped (such as if it is within an "if", you |
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# have to call PKG_CHECK_EXISTS manually |
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# -------------------------------------------------------------- |
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AC_DEFUN([PKG_CHECK_EXISTS], |
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
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if test -n "$PKG_CONFIG" && \ |
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AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then |
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m4_default([$2], [:]) |
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m4_ifvaln([$3], [else |
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$3])dnl |
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fi]) |
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# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES]) |
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# --------------------------------------------- |
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m4_define([_PKG_CONFIG], |
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[if test -n "$$1"; then |
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pkg_cv_[]$1="$$1" |
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elif test -n "$PKG_CONFIG"; then |
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PKG_CHECK_EXISTS([$3], |
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[pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`], |
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[pkg_failed=yes]) |
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else |
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pkg_failed=untried |
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fi[]dnl |
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])# _PKG_CONFIG |
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# _PKG_SHORT_ERRORS_SUPPORTED |
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# ----------------------------- |
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AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED], |
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG]) |
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if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then |
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_pkg_short_errors_supported=yes |
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else |
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_pkg_short_errors_supported=no |
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fi[]dnl |
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])# _PKG_SHORT_ERRORS_SUPPORTED |
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# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND], |
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# [ACTION-IF-NOT-FOUND]) |
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# |
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# |
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# Note that if there is a possibility the first call to |
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# PKG_CHECK_MODULES might not happen, you should be sure to include an |
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# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac |
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# |
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# |
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# -------------------------------------------------------------- |
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AC_DEFUN([PKG_CHECK_MODULES], |
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl |
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AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl |
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AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl |
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pkg_failed=no |
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AC_MSG_CHECKING([for $1]) |
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_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2]) |
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_PKG_CONFIG([$1][_LIBS], [libs], [$2]) |
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m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS |
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and $1[]_LIBS to avoid the need to call pkg-config. |
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See the pkg-config man page for more details.]) |
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if test $pkg_failed = yes; then |
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AC_MSG_RESULT([no]) |
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_PKG_SHORT_ERRORS_SUPPORTED |
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if test $_pkg_short_errors_supported = yes; then |
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$1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1` |
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else |
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$1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1` |
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fi |
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# Put the nasty error message in config.log where it belongs |
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echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD |
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m4_default([$4], [AC_MSG_ERROR( |
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[Package requirements ($2) were not met: |
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$$1_PKG_ERRORS |
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Consider adjusting the PKG_CONFIG_PATH environment variable if you |
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installed software in a non-standard prefix. |
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_PKG_TEXT])dnl |
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]) |
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elif test $pkg_failed = untried; then |
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AC_MSG_RESULT([no]) |
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m4_default([$4], [AC_MSG_FAILURE( |
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[The pkg-config script could not be found or is too old. Make sure it |
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is in your PATH or set the PKG_CONFIG environment variable to the full |
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path to pkg-config. |
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_PKG_TEXT |
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To get pkg-config, see <http://pkg-config.freedesktop.org/>.])dnl |
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]) |
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else |
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$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS |
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$1[]_LIBS=$pkg_cv_[]$1[]_LIBS |
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AC_MSG_RESULT([yes]) |
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$3 |
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fi[]dnl |
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])# PKG_CHECK_MODULES
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