test/acinclude.m4
author Sam Lantinga <slouken@libsdl.org>
Tue, 04 Sep 2001 23:22:23 +0000
changeset 170 9427fb48592a
parent 1 cf2af46e9e2a
child 172 37e3ca9254c7
permissions -rw-r--r--
*** empty log message ***
     1 # Configure paths for SDL
     2 # Sam Lantinga 9/21/99
     3 # stolen from Manish Singh
     4 # stolen back from Frank Belew
     5 # stolen from Manish Singh
     6 # Shamelessly stolen from Owen Taylor
     7 
     8 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
     9 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
    10 dnl
    11 AC_DEFUN(AM_PATH_SDL,
    12 [dnl 
    13 dnl Get the cflags and libraries from the sdl-config script
    14 dnl
    15 AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
    16             sdl_prefix="$withval", sdl_prefix="")
    17 AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
    18             sdl_exec_prefix="$withval", sdl_exec_prefix="")
    19 AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
    20 		    , enable_sdltest=yes)
    21 
    22   if test x$sdl_exec_prefix != x ; then
    23      sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
    24      if test x${SDL_CONFIG+set} != xset ; then
    25         SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
    26      fi
    27   fi
    28   if test x$sdl_prefix != x ; then
    29      sdl_args="$sdl_args --prefix=$sdl_prefix"
    30      if test x${SDL_CONFIG+set} != xset ; then
    31         SDL_CONFIG=$sdl_prefix/bin/sdl-config
    32      fi
    33   fi
    34 
    35   AC_PATH_PROG(SDL_CONFIG, sdl-config, no)
    36   min_sdl_version=ifelse([$1], ,0.11.0,$1)
    37   AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
    38   no_sdl=""
    39   if test "$SDL_CONFIG" = "no" ; then
    40     no_sdl=yes
    41   else
    42     SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
    43     SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
    44 
    45     sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
    46            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
    47     sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
    48            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
    49     sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
    50            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
    51     if test "x$enable_sdltest" = "xyes" ; then
    52       ac_save_CFLAGS="$CFLAGS"
    53       ac_save_LIBS="$LIBS"
    54       CFLAGS="$CFLAGS $SDL_CFLAGS"
    55       LIBS="$LIBS $SDL_LIBS"
    56 dnl
    57 dnl Now check if the installed SDL is sufficiently new. (Also sanity
    58 dnl checks the results of sdl-config to some extent
    59 dnl
    60       rm -f conf.sdltest
    61       case "$target" in
    62           *-*-darwin*)
    63             cp -r `$SDL_CONFIG --nib` .
    64             dnl create an Info.plist file, unless one exists
    65             if test -f Info.plist ; then
    66              :
    67             else
    68              cp `$SDL_CONFIG --plist` .
    69             fi
    70               ;;
    71       esac
    72       AC_TRY_RUN([
    73 #include <stdio.h>
    74 #include <stdlib.h>
    75 #include <string.h>
    76 #include "SDL.h"
    77 
    78 char*
    79 my_strdup (char *str)
    80 {
    81   char *new_str;
    82   
    83   if (str)
    84     {
    85       new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
    86       strcpy (new_str, str);
    87     }
    88   else
    89     new_str = NULL;
    90   
    91   return new_str;
    92 }
    93 
    94 int main (int argc, char *argv[])
    95 {
    96   int major, minor, micro;
    97   char *tmp_version;
    98 
    99   /* This hangs on some systems (?)
   100   system ("touch conf.sdltest");
   101   */
   102   { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
   103 
   104   /* HP/UX 9 (%@#!) writes to sscanf strings */
   105   tmp_version = my_strdup("$min_sdl_version");
   106   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
   107      printf("%s, bad version string\n", "$min_sdl_version");
   108      exit(1);
   109    }
   110 
   111    if (($sdl_major_version > major) ||
   112       (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
   113       (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
   114     {
   115       return 0;
   116     }
   117   else
   118     {
   119       printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
   120       printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
   121       printf("*** best to upgrade to the required version.\n");
   122       printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
   123       printf("*** to point to the correct copy of sdl-config, and remove the file\n");
   124       printf("*** config.cache before re-running configure\n");
   125       return 1;
   126     }
   127 }
   128 
   129 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
   130        CFLAGS="$ac_save_CFLAGS"
   131        LIBS="$ac_save_LIBS"
   132      fi
   133   fi
   134   if test "x$no_sdl" = x ; then
   135      AC_MSG_RESULT(yes)
   136      ifelse([$2], , :, [$2])     
   137   else
   138      AC_MSG_RESULT(no)
   139      if test "$SDL_CONFIG" = "no" ; then
   140        echo "*** The sdl-config script installed by SDL could not be found"
   141        echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
   142        echo "*** your path, or set the SDL_CONFIG environment variable to the"
   143        echo "*** full path to sdl-config."
   144      else
   145        if test -f conf.sdltest ; then
   146         :
   147        else
   148           echo "*** Could not run SDL test program, checking why..."
   149           CFLAGS="$CFLAGS $SDL_CFLAGS"
   150           LIBS="$LIBS $SDL_LIBS"
   151           AC_TRY_LINK([
   152 #include <stdio.h>
   153 #include "SDL.h"
   154 
   155 int main(int argc, char *argv[])
   156 { return 0; }
   157 #undef  main
   158 #define main K_and_R_C_main
   159 ],      [ return 0; ],
   160         [ echo "*** The test program compiled, but did not run. This usually means"
   161           echo "*** that the run-time linker is not finding SDL or finding the wrong"
   162           echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
   163           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
   164           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
   165           echo "*** is required on your system"
   166 	  echo "***"
   167           echo "*** If you have an old version installed, it is best to remove it, although"
   168           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
   169         [ echo "*** The test program failed to compile or link. See the file config.log for the"
   170           echo "*** exact error that occured. This usually means SDL was incorrectly installed"
   171           echo "*** or that you have moved SDL since it was installed. In the latter case, you"
   172           echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
   173           CFLAGS="$ac_save_CFLAGS"
   174           LIBS="$ac_save_LIBS"
   175        fi
   176      fi
   177      SDL_CFLAGS=""
   178      SDL_LIBS=""
   179      ifelse([$3], , :, [$3])
   180   fi
   181   AC_SUBST(SDL_CFLAGS)
   182   AC_SUBST(SDL_LIBS)
   183       case "$target" in
   184           *-*-darwin*)
   185               SDL_APPLE_CREATOR="????"
   186               AC_SUBST(SDL_APPLE_CREATOR)
   187               ;;
   188       esac
   189   rm -f conf.sdltest
   190 ])