sdl.m4
author Sam Lantinga <slouken@libsdl.org>
Thu, 06 May 2004 15:55:06 +0000
changeset 886 05c551e5bc64
parent 794 a5defa3b93e1
child 1118 65f4b2dd46b7
permissions -rw-r--r--
Date: Sat, 24 Apr 2004 15:13:32 +0300 From: "Mike Gorchak" Subject: SDL updates for the QNX6 1. Updated the README.QNX 2. Updated libtool scripts, which are shipped with SDL for QNX6 support. 3. Added some code to support the new QNX 6.3.0, which is in beta now. 4. Added code to detect the hw features, which driver supports. 5. Added hw alpha blits code. 6. Fixed bug when application switches to fullscreen more the 2 times. (afte\ r that window becames always stay on top). 7. Updated a bit README for the tests. 8. Added information about acceleration show in the testalpha.c test. 9. Added small fixes to the testoverlay2.c test. 10. Added alpha and cc+alpha blits benchmarks to the testvidinfo.c test.
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# 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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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_SDL],
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[dnl 
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dnl Get the cflags and libraries from the sdl-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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  if test x$sdl_exec_prefix != x ; then
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     sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
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     if test x${SDL_CONFIG+set} != xset ; then
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        SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
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     fi
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  fi
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  if test x$sdl_prefix != x ; then
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     sdl_args="$sdl_args --prefix=$sdl_prefix"
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     if test x${SDL_CONFIG+set} != xset ; then
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        SDL_CONFIG=$sdl_prefix/bin/sdl-config
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     fi
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  fi
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37e3ca9254c7 Date: Sat, 8 Sep 2001 04:42:23 +0200
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  AC_REQUIRE([AC_CANONICAL_TARGET])
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  PATH="$prefix/bin:$prefix/usr/bin:$PATH"
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  AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
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  min_sdl_version=ifelse([$1], ,0.11.0,$1)
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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 $sdlconf_args --cflags`
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    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
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    sdl_major_version=`$SDL_CONFIG $sdl_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_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_LIBS="$LIBS"
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      CFLAGS="$CFLAGS $SDL_CFLAGS"
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      LIBS="$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 sdl-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, &micro) != 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*** 'sdl-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 sdl-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 sdl-config was wrong, set the environment variable SDL_CONFIG\n");
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      printf("*** to point to the correct copy of sdl-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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       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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     ifelse([$2], , :, [$2])     
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  else
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     AC_MSG_RESULT(no)
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     if test "$SDL_CONFIG" = "no" ; then
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       echo "*** The sdl-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 sdl-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 $SDL_CFLAGS"
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          LIBS="$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
0
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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 sdl-config script: $SDL_CONFIG" ])
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          CFLAGS="$ac_save_CFLAGS"
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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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])