test/acinclude.m4
author Sam Lantinga <slouken@libsdl.org>
Fri, 29 Feb 2008 13:58:37 +0000
branchSDL-1.2
changeset 4141 8b10a6efad41
parent 1755 91063c450171
child 6250 cce0ddcf6747
permissions -rw-r--r--
Added patch note for Sylvain's patch
slouken@0
     1
# Configure paths for SDL
slouken@0
     2
# Sam Lantinga 9/21/99
slouken@0
     3
# stolen from Manish Singh
slouken@0
     4
# stolen back from Frank Belew
slouken@0
     5
# stolen from Manish Singh
slouken@0
     6
# Shamelessly stolen from Owen Taylor
slouken@0
     7
slouken@0
     8
dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
slouken@0
     9
dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
slouken@0
    10
dnl
slouken@794
    11
AC_DEFUN([AM_PATH_SDL],
slouken@0
    12
[dnl 
slouken@0
    13
dnl Get the cflags and libraries from the sdl-config script
slouken@0
    14
dnl
slouken@0
    15
AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
slouken@0
    16
            sdl_prefix="$withval", sdl_prefix="")
slouken@0
    17
AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
slouken@0
    18
            sdl_exec_prefix="$withval", sdl_exec_prefix="")
slouken@0
    19
AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
slouken@0
    20
		    , enable_sdltest=yes)
slouken@0
    21
slouken@0
    22
  if test x$sdl_exec_prefix != x ; then
slouken@1755
    23
    sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
slouken@1755
    24
    if test x${SDL_CONFIG+set} != xset ; then
slouken@1755
    25
       SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
slouken@1755
    26
    fi
slouken@0
    27
  fi
slouken@0
    28
  if test x$sdl_prefix != x ; then
slouken@1755
    29
    sdl_args="$sdl_args --prefix=$sdl_prefix"
slouken@1755
    30
    if test x${SDL_CONFIG+set} != xset ; then
slouken@1755
    31
       SDL_CONFIG=$sdl_prefix/bin/sdl-config
slouken@1755
    32
    fi
slouken@0
    33
  fi
slouken@0
    34
slouken@1755
    35
  if test "x$prefix" != xNONE; then
slouken@1755
    36
    PATH="$prefix/bin:$prefix/usr/bin:$PATH"
slouken@1755
    37
  fi
slouken@489
    38
  AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
slouken@0
    39
  min_sdl_version=ifelse([$1], ,0.11.0,$1)
slouken@0
    40
  AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
slouken@0
    41
  no_sdl=""
slouken@0
    42
  if test "$SDL_CONFIG" = "no" ; then
slouken@0
    43
    no_sdl=yes
slouken@0
    44
  else
slouken@0
    45
    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
slouken@0
    46
    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
slouken@0
    47
slouken@0
    48
    sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
slouken@0
    49
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
slouken@0
    50
    sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
slouken@0
    51
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
slouken@0
    52
    sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
slouken@0
    53
           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
slouken@0
    54
    if test "x$enable_sdltest" = "xyes" ; then
slouken@0
    55
      ac_save_CFLAGS="$CFLAGS"
slouken@1380
    56
      ac_save_CXXFLAGS="$CXXFLAGS"
slouken@0
    57
      ac_save_LIBS="$LIBS"
slouken@0
    58
      CFLAGS="$CFLAGS $SDL_CFLAGS"
slouken@1380
    59
      CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
slouken@0
    60
      LIBS="$LIBS $SDL_LIBS"
slouken@0
    61
dnl
slouken@0
    62
dnl Now check if the installed SDL is sufficiently new. (Also sanity
slouken@0
    63
dnl checks the results of sdl-config to some extent
slouken@0
    64
dnl
slouken@0
    65
      rm -f conf.sdltest
slouken@0
    66
      AC_TRY_RUN([
slouken@0
    67
#include <stdio.h>
slouken@0
    68
#include <stdlib.h>
slouken@0
    69
#include <string.h>
slouken@0
    70
#include "SDL.h"
slouken@0
    71
slouken@0
    72
char*
slouken@0
    73
my_strdup (char *str)
slouken@0
    74
{
slouken@0
    75
  char *new_str;
slouken@0
    76
  
slouken@0
    77
  if (str)
slouken@0
    78
    {
slouken@0
    79
      new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
slouken@0
    80
      strcpy (new_str, str);
slouken@0
    81
    }
slouken@0
    82
  else
slouken@0
    83
    new_str = NULL;
slouken@0
    84
  
slouken@0
    85
  return new_str;
slouken@0
    86
}
slouken@0
    87
slouken@0
    88
int main (int argc, char *argv[])
slouken@0
    89
{
slouken@0
    90
  int major, minor, micro;
slouken@0
    91
  char *tmp_version;
slouken@0
    92
slouken@0
    93
  /* This hangs on some systems (?)
slouken@0
    94
  system ("touch conf.sdltest");
slouken@0
    95
  */
slouken@0
    96
  { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
slouken@0
    97
slouken@0
    98
  /* HP/UX 9 (%@#!) writes to sscanf strings */
slouken@0
    99
  tmp_version = my_strdup("$min_sdl_version");
slouken@0
   100
  if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
slouken@0
   101
     printf("%s, bad version string\n", "$min_sdl_version");
slouken@0
   102
     exit(1);
slouken@0
   103
   }
slouken@0
   104
slouken@0
   105
   if (($sdl_major_version > major) ||
slouken@0
   106
      (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
slouken@0
   107
      (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
slouken@0
   108
    {
slouken@0
   109
      return 0;
slouken@0
   110
    }
slouken@0
   111
  else
slouken@0
   112
    {
slouken@0
   113
      printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
slouken@0
   114
      printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
slouken@0
   115
      printf("*** best to upgrade to the required version.\n");
slouken@0
   116
      printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
slouken@0
   117
      printf("*** to point to the correct copy of sdl-config, and remove the file\n");
slouken@0
   118
      printf("*** config.cache before re-running configure\n");
slouken@0
   119
      return 1;
slouken@0
   120
    }
slouken@0
   121
}
slouken@0
   122
slouken@0
   123
],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
slouken@0
   124
       CFLAGS="$ac_save_CFLAGS"
slouken@1550
   125
       CXXFLAGS="$ac_save_CXXFLAGS"
slouken@0
   126
       LIBS="$ac_save_LIBS"
slouken@0
   127
     fi
slouken@0
   128
  fi
slouken@0
   129
  if test "x$no_sdl" = x ; then
slouken@0
   130
     AC_MSG_RESULT(yes)
slouken@0
   131
     ifelse([$2], , :, [$2])     
slouken@0
   132
  else
slouken@0
   133
     AC_MSG_RESULT(no)
slouken@0
   134
     if test "$SDL_CONFIG" = "no" ; then
slouken@0
   135
       echo "*** The sdl-config script installed by SDL could not be found"
slouken@0
   136
       echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
slouken@0
   137
       echo "*** your path, or set the SDL_CONFIG environment variable to the"
slouken@0
   138
       echo "*** full path to sdl-config."
slouken@0
   139
     else
slouken@0
   140
       if test -f conf.sdltest ; then
slouken@0
   141
        :
slouken@0
   142
       else
slouken@0
   143
          echo "*** Could not run SDL test program, checking why..."
slouken@0
   144
          CFLAGS="$CFLAGS $SDL_CFLAGS"
slouken@1380
   145
          CXXFLAGS="$CXXFLAGS $SDL_CFLAGS"
slouken@0
   146
          LIBS="$LIBS $SDL_LIBS"
slouken@0
   147
          AC_TRY_LINK([
slouken@0
   148
#include <stdio.h>
slouken@0
   149
#include "SDL.h"
slouken@1
   150
slouken@1
   151
int main(int argc, char *argv[])
slouken@1
   152
{ return 0; }
slouken@1
   153
#undef  main
slouken@1
   154
#define main K_and_R_C_main
slouken@0
   155
],      [ return 0; ],
slouken@0
   156
        [ echo "*** The test program compiled, but did not run. This usually means"
slouken@0
   157
          echo "*** that the run-time linker is not finding SDL or finding the wrong"
slouken@0
   158
          echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
slouken@0
   159
          echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
slouken@0
   160
          echo "*** to the installed location  Also, make sure you have run ldconfig if that"
slouken@0
   161
          echo "*** is required on your system"
slouken@0
   162
	  echo "***"
slouken@0
   163
          echo "*** If you have an old version installed, it is best to remove it, although"
slouken@0
   164
          echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
slouken@0
   165
        [ echo "*** The test program failed to compile or link. See the file config.log for the"
slouken@0
   166
          echo "*** exact error that occured. This usually means SDL was incorrectly installed"
slouken@0
   167
          echo "*** or that you have moved SDL since it was installed. In the latter case, you"
slouken@0
   168
          echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
slouken@0
   169
          CFLAGS="$ac_save_CFLAGS"
slouken@1380
   170
          CXXFLAGS="$ac_save_CXXFLAGS"
slouken@0
   171
          LIBS="$ac_save_LIBS"
slouken@0
   172
       fi
slouken@0
   173
     fi
slouken@0
   174
     SDL_CFLAGS=""
slouken@0
   175
     SDL_LIBS=""
slouken@0
   176
     ifelse([$3], , :, [$3])
slouken@0
   177
  fi
slouken@0
   178
  AC_SUBST(SDL_CFLAGS)
slouken@0
   179
  AC_SUBST(SDL_LIBS)
slouken@0
   180
  rm -f conf.sdltest
slouken@0
   181
])