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	revert replace AM_PATH_SDL2 usage with corresponding PKG_CHECK_MODULES.
Reference issue: https://github.com/libsdl-org/SDL/issues/6494 .
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						 | 
				
			
			@ -1,6 +1,186 @@
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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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# serial 2
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dnl AM_PATH_SDL2([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], ,2.0.0,$1)
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  if test "x$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${SDL2_CONFIG+set} != xset ; then
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        SDL2_CONFIG=$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=$sdl_prefix"
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      if test x${SDL2_CONFIG+set} != xset ; then
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        SDL2_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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    SDL2_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(SDL2_CONFIG, sdl2-config, no, [$PATH])
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    PATH="$as_save_PATH"
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    AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
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    no_sdl=""
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    if test "$SDL2_CONFIG" = "no" ; then
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      no_sdl=yes
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    else
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      SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags`
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      SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs`
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      sdl_major_version=`$SDL2_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=`$SDL2_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=`$SDL2_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 $SDL_LIBS"
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dnl
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dnl Now check if the installed SDL is sufficiently new. (Also sanity
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dnl checks the results of sdl2-config to some extent
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dnl
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      rm -f conf.sdltest
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      AC_RUN_IFELSE([AC_LANG_SOURCE([[
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#include <stdio.h>
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#include <stdlib.h>
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#include "SDL.h"
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int main (int argc, char *argv[])
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{
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  int major, minor, micro;
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  FILE *fp = fopen("conf.sdltest", "w");
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  if (fp) fclose(fp);
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  if (sscanf("$min_sdl_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 SDL2_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], , :, [$2])
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  else
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     if test "$SDL2_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 SDL2_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_LINK_IFELSE([AC_LANG_PROGRAM([[
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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: $SDL2_CONFIG" ])
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          CFLAGS="$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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# 
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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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			@ -90,6 +270,7 @@ else
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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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		|||
							
								
								
									
										335
									
								
								test/configure
									
									
									
									
										vendored
									
									
								
							
							
						
						
									
										335
									
								
								test/configure
									
									
									
									
										vendored
									
									
								
							| 
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			@ -627,6 +627,7 @@ OPENGLES2_TARGETS
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OPENGLES1_TARGETS
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CPP
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XMKMF
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SDL2_CONFIG
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SDL_LIBS
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SDL_CFLAGS
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PKG_CONFIG_LIBDIR
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			@ -696,6 +697,9 @@ SHELL'
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ac_subst_files=''
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ac_user_opts='
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enable_option_checking
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with_sdl_prefix
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with_sdl_exec_prefix
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enable_sdltest
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with_x
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enable_werror
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'
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| 
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			@ -1340,11 +1344,14 @@ Optional Features:
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  --disable-option-checking  ignore unrecognized --enable/--with options
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  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
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  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
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  --disable-sdltest       Do not try to compile and run a test SDL program
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  --enable-werror         treat warnings as errors [default=no]
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Optional Packages:
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  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
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  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
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  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)
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  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)
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  --with-x                use the X Window System
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Some influential environment variables:
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			@ -1536,6 +1543,49 @@ fi
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} # ac_fn_c_try_link
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# ac_fn_c_try_run LINENO
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# ----------------------
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# Try to run conftest.$ac_ext, and return whether this succeeded. Assumes that
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# executables *can* be run.
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ac_fn_c_try_run ()
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{
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  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
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  if { { ac_try="$ac_link"
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case "(($ac_try" in
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  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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  *) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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printf "%s\n" "$ac_try_echo"; } >&5
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  (eval "$ac_link") 2>&5
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  ac_status=$?
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  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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  test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
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  { { case "(($ac_try" in
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  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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  *) ac_try_echo=$ac_try;;
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esac
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eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
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printf "%s\n" "$ac_try_echo"; } >&5
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  (eval "$ac_try") 2>&5
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  ac_status=$?
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  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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		||||
  test $ac_status = 0; }; }
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then :
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  ac_retval=0
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else $as_nop
 | 
			
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  printf "%s\n" "$as_me: program exited with status $ac_status" >&5
 | 
			
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       printf "%s\n" "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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       ac_retval=$ac_status
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fi
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  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
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		||||
  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
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  as_fn_set_status $ac_retval
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		||||
} # ac_fn_c_try_run
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		||||
# ac_fn_c_try_cpp LINENO
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		||||
# ----------------------
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		||||
# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
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| 
						 | 
				
			
			@ -3800,20 +3850,50 @@ printf "%s\n" "no" >&6; }
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	fi
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fi
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 | 
			
		||||
# Check whether --with-sdl-prefix was given.
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		||||
if test ${with_sdl_prefix+y}
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		||||
then :
 | 
			
		||||
  withval=$with_sdl_prefix; sdl_prefix="$withval"
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		||||
else $as_nop
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		||||
  sdl_prefix=""
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		||||
fi
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		||||
 | 
			
		||||
# Check whether --with-sdl-exec-prefix was given.
 | 
			
		||||
if test ${with_sdl_exec_prefix+y}
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		||||
then :
 | 
			
		||||
  withval=$with_sdl_exec_prefix; sdl_exec_prefix="$withval"
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else $as_nop
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		||||
  sdl_exec_prefix=""
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fi
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		||||
# Check whether --enable-sdltest was given.
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		||||
if test ${enable_sdltest+y}
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then :
 | 
			
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  enableval=$enable_sdltest;
 | 
			
		||||
else $as_nop
 | 
			
		||||
  enable_sdltest=yes
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		||||
fi
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		||||
 | 
			
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  min_sdl_version=$SDL_VERSION
 | 
			
		||||
 | 
			
		||||
  if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
 | 
			
		||||
 | 
			
		||||
pkg_failed=no
 | 
			
		||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sdl2 >= $SDL_VERSION" >&5
 | 
			
		||||
printf %s "checking for sdl2 >= $SDL_VERSION... " >&6; }
 | 
			
		||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for sdl2 >= $min_sdl_version" >&5
 | 
			
		||||
printf %s "checking for sdl2 >= $min_sdl_version... " >&6; }
 | 
			
		||||
 | 
			
		||||
if test -n "$SDL_CFLAGS"; then
 | 
			
		||||
    pkg_cv_SDL_CFLAGS="$SDL_CFLAGS"
 | 
			
		||||
 elif test -n "$PKG_CONFIG"; then
 | 
			
		||||
    if test -n "$PKG_CONFIG" && \
 | 
			
		||||
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$SDL_VERSION\""; } >&5
 | 
			
		||||
  ($PKG_CONFIG --exists --print-errors "sdl2 >= $SDL_VERSION") 2>&5
 | 
			
		||||
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
 | 
			
		||||
  ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
 | 
			
		||||
  ac_status=$?
 | 
			
		||||
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 | 
			
		||||
  test $ac_status = 0; }; then
 | 
			
		||||
  pkg_cv_SDL_CFLAGS=`$PKG_CONFIG --cflags "sdl2 >= $SDL_VERSION" 2>/dev/null`
 | 
			
		||||
  pkg_cv_SDL_CFLAGS=`$PKG_CONFIG --cflags "sdl2 >= $min_sdl_version" 2>/dev/null`
 | 
			
		||||
else
 | 
			
		||||
  pkg_failed=yes
 | 
			
		||||
fi
 | 
			
		||||
| 
						 | 
				
			
			@ -3824,12 +3904,12 @@ if test -n "$SDL_LIBS"; then
 | 
			
		|||
    pkg_cv_SDL_LIBS="$SDL_LIBS"
 | 
			
		||||
 elif test -n "$PKG_CONFIG"; then
 | 
			
		||||
    if test -n "$PKG_CONFIG" && \
 | 
			
		||||
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$SDL_VERSION\""; } >&5
 | 
			
		||||
  ($PKG_CONFIG --exists --print-errors "sdl2 >= $SDL_VERSION") 2>&5
 | 
			
		||||
    { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\""; } >&5
 | 
			
		||||
  ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
 | 
			
		||||
  ac_status=$?
 | 
			
		||||
  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
 | 
			
		||||
  test $ac_status = 0; }; then
 | 
			
		||||
  pkg_cv_SDL_LIBS=`$PKG_CONFIG --libs "sdl2 >= $SDL_VERSION" 2>/dev/null`
 | 
			
		||||
  pkg_cv_SDL_LIBS=`$PKG_CONFIG --libs "sdl2 >= $min_sdl_version" 2>/dev/null`
 | 
			
		||||
else
 | 
			
		||||
  pkg_failed=yes
 | 
			
		||||
fi
 | 
			
		||||
| 
						 | 
				
			
			@ -3849,25 +3929,254 @@ else
 | 
			
		|||
        _pkg_short_errors_supported=no
 | 
			
		||||
fi
 | 
			
		||||
        if test $_pkg_short_errors_supported = yes; then
 | 
			
		||||
	        SDL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "sdl2 >= $SDL_VERSION" 2>&1`
 | 
			
		||||
	        SDL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "sdl2 >= $min_sdl_version" 2>&1`
 | 
			
		||||
        else
 | 
			
		||||
	        SDL_PKG_ERRORS=`$PKG_CONFIG --print-errors "sdl2 >= $SDL_VERSION" 2>&1`
 | 
			
		||||
	        SDL_PKG_ERRORS=`$PKG_CONFIG --print-errors "sdl2 >= $min_sdl_version" 2>&1`
 | 
			
		||||
        fi
 | 
			
		||||
	# Put the nasty error message in config.log where it belongs
 | 
			
		||||
	echo "$SDL_PKG_ERRORS" >&5
 | 
			
		||||
 | 
			
		||||
	as_fn_error $? "*** SDL version $SDL_VERSION not found!" "$LINENO" 5
 | 
			
		||||
	sdl_pc=no
 | 
			
		||||
elif test $pkg_failed = untried; then
 | 
			
		||||
     	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 | 
			
		||||
printf "%s\n" "no" >&6; }
 | 
			
		||||
	as_fn_error $? "*** SDL version $SDL_VERSION not found!" "$LINENO" 5
 | 
			
		||||
	sdl_pc=no
 | 
			
		||||
else
 | 
			
		||||
	SDL_CFLAGS=$pkg_cv_SDL_CFLAGS
 | 
			
		||||
	SDL_LIBS=$pkg_cv_SDL_LIBS
 | 
			
		||||
        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 | 
			
		||||
printf "%s\n" "yes" >&6; }
 | 
			
		||||
 | 
			
		||||
	sdl_pc=yes
 | 
			
		||||
fi
 | 
			
		||||
  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${SDL2_CONFIG+set} != xset ; then
 | 
			
		||||
        SDL2_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${SDL2_CONFIG+set} != xset ; then
 | 
			
		||||
        SDL2_CONFIG=$sdl_prefix/bin/sdl2-config
 | 
			
		||||
      fi
 | 
			
		||||
    fi
 | 
			
		||||
  fi
 | 
			
		||||
 | 
			
		||||
  if test "x$sdl_pc" = xyes ; then
 | 
			
		||||
    no_sdl=""
 | 
			
		||||
    SDL2_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
 | 
			
		||||
    # Extract the first word of "sdl2-config", so it can be a program name with args.
 | 
			
		||||
set dummy sdl2-config; ac_word=$2
 | 
			
		||||
{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
 | 
			
		||||
printf %s "checking for $ac_word... " >&6; }
 | 
			
		||||
if test ${ac_cv_path_SDL2_CONFIG+y}
 | 
			
		||||
then :
 | 
			
		||||
  printf %s "(cached) " >&6
 | 
			
		||||
else $as_nop
 | 
			
		||||
  case $SDL2_CONFIG in
 | 
			
		||||
  [\\/]* | ?:[\\/]*)
 | 
			
		||||
  ac_cv_path_SDL2_CONFIG="$SDL2_CONFIG" # Let the user override the test with a path.
 | 
			
		||||
  ;;
 | 
			
		||||
  *)
 | 
			
		||||
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 | 
			
		||||
for as_dir in $PATH
 | 
			
		||||
do
 | 
			
		||||
  IFS=$as_save_IFS
 | 
			
		||||
  case $as_dir in #(((
 | 
			
		||||
    '') as_dir=./ ;;
 | 
			
		||||
    */) ;;
 | 
			
		||||
    *) as_dir=$as_dir/ ;;
 | 
			
		||||
  esac
 | 
			
		||||
    for ac_exec_ext in '' $ac_executable_extensions; do
 | 
			
		||||
  if as_fn_executable_p "$as_dir$ac_word$ac_exec_ext"; then
 | 
			
		||||
    ac_cv_path_SDL2_CONFIG="$as_dir$ac_word$ac_exec_ext"
 | 
			
		||||
    printf "%s\n" "$as_me:${as_lineno-$LINENO}: found $as_dir$ac_word$ac_exec_ext" >&5
 | 
			
		||||
    break 2
 | 
			
		||||
  fi
 | 
			
		||||
done
 | 
			
		||||
  done
 | 
			
		||||
IFS=$as_save_IFS
 | 
			
		||||
 | 
			
		||||
  test -z "$ac_cv_path_SDL2_CONFIG" && ac_cv_path_SDL2_CONFIG="no"
 | 
			
		||||
  ;;
 | 
			
		||||
esac
 | 
			
		||||
fi
 | 
			
		||||
SDL2_CONFIG=$ac_cv_path_SDL2_CONFIG
 | 
			
		||||
if test -n "$SDL2_CONFIG"; then
 | 
			
		||||
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $SDL2_CONFIG" >&5
 | 
			
		||||
printf "%s\n" "$SDL2_CONFIG" >&6; }
 | 
			
		||||
else
 | 
			
		||||
  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 | 
			
		||||
printf "%s\n" "no" >&6; }
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
    PATH="$as_save_PATH"
 | 
			
		||||
    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for SDL - version >= $min_sdl_version" >&5
 | 
			
		||||
printf %s "checking for SDL - version >= $min_sdl_version... " >&6; }
 | 
			
		||||
    no_sdl=""
 | 
			
		||||
 | 
			
		||||
    if test "$SDL2_CONFIG" = "no" ; then
 | 
			
		||||
      no_sdl=yes
 | 
			
		||||
    else
 | 
			
		||||
      SDL_CFLAGS=`$SDL2_CONFIG $sdl_config_args --cflags`
 | 
			
		||||
      SDL_LIBS=`$SDL2_CONFIG $sdl_config_args --libs`
 | 
			
		||||
 | 
			
		||||
      sdl_major_version=`$SDL2_CONFIG $sdl_config_args --version | \
 | 
			
		||||
             sed 's/\([0-9]*\).\([0-9]*\).\([0-9]*\)/\1/'`
 | 
			
		||||
      sdl_minor_version=`$SDL2_CONFIG $sdl_config_args --version | \
 | 
			
		||||
             sed 's/\([0-9]*\).\([0-9]*\).\([0-9]*\)/\2/'`
 | 
			
		||||
      sdl_micro_version=`$SDL2_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"
 | 
			
		||||
      rm -f conf.sdltest
 | 
			
		||||
      if test "$cross_compiling" = yes
 | 
			
		||||
then :
 | 
			
		||||
  echo $ac_n "cross compiling; assumed OK... $ac_c"
 | 
			
		||||
else $as_nop
 | 
			
		||||
  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 | 
			
		||||
/* end confdefs.h.  */
 | 
			
		||||
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
#include "SDL.h"
 | 
			
		||||
 | 
			
		||||
int main (int argc, char *argv[])
 | 
			
		||||
{
 | 
			
		||||
  int major, minor, micro;
 | 
			
		||||
  FILE *fp = fopen("conf.sdltest", "w");
 | 
			
		||||
 | 
			
		||||
  if (fp) fclose(fp);
 | 
			
		||||
 | 
			
		||||
  if (sscanf("$min_sdl_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 SDL2_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;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
_ACEOF
 | 
			
		||||
if ac_fn_c_try_run "$LINENO"
 | 
			
		||||
then :
 | 
			
		||||
 | 
			
		||||
else $as_nop
 | 
			
		||||
  no_sdl=yes
 | 
			
		||||
fi
 | 
			
		||||
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
 | 
			
		||||
  conftest.$ac_objext conftest.beam conftest.$ac_ext
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
        CFLAGS="$ac_save_CFLAGS"
 | 
			
		||||
        CXXFLAGS="$ac_save_CXXFLAGS"
 | 
			
		||||
        LIBS="$ac_save_LIBS"
 | 
			
		||||
      fi
 | 
			
		||||
    fi
 | 
			
		||||
    if test "x$no_sdl" = x ; then
 | 
			
		||||
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: yes" >&5
 | 
			
		||||
printf "%s\n" "yes" >&6; }
 | 
			
		||||
    else
 | 
			
		||||
      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: no" >&5
 | 
			
		||||
printf "%s\n" "no" >&6; }
 | 
			
		||||
    fi
 | 
			
		||||
  fi
 | 
			
		||||
  if test "x$no_sdl" = x ; then
 | 
			
		||||
     :
 | 
			
		||||
  else
 | 
			
		||||
     if test "$SDL2_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 SDL2_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"
 | 
			
		||||
          cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 | 
			
		||||
/* end confdefs.h.  */
 | 
			
		||||
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
#include "SDL.h"
 | 
			
		||||
 | 
			
		||||
int main(int argc, char *argv[])
 | 
			
		||||
{ return 0; }
 | 
			
		||||
#undef  main
 | 
			
		||||
#define main K_and_R_C_main
 | 
			
		||||
 | 
			
		||||
int
 | 
			
		||||
main (void)
 | 
			
		||||
{
 | 
			
		||||
 return 0;
 | 
			
		||||
  ;
 | 
			
		||||
  return 0;
 | 
			
		||||
}
 | 
			
		||||
_ACEOF
 | 
			
		||||
if ac_fn_c_try_link "$LINENO"
 | 
			
		||||
then :
 | 
			
		||||
   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"
 | 
			
		||||
else $as_nop
 | 
			
		||||
   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: $SDL2_CONFIG"
 | 
			
		||||
fi
 | 
			
		||||
rm -f core conftest.err conftest.$ac_objext conftest.beam \
 | 
			
		||||
    conftest$ac_exeext conftest.$ac_ext
 | 
			
		||||
          CFLAGS="$ac_save_CFLAGS"
 | 
			
		||||
          CXXFLAGS="$ac_save_CXXFLAGS"
 | 
			
		||||
          LIBS="$ac_save_LIBS"
 | 
			
		||||
       fi
 | 
			
		||||
     fi
 | 
			
		||||
     SDL_CFLAGS=""
 | 
			
		||||
     SDL_LIBS=""
 | 
			
		||||
     as_fn_error $? "*** SDL version $SDL_VERSION not found!" "$LINENO" 5
 | 
			
		||||
 | 
			
		||||
  fi
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
  rm -f conf.sdltest
 | 
			
		||||
 | 
			
		||||
CFLAGS="$CFLAGS $SDL_CFLAGS"
 | 
			
		||||
LIBS="$LIBS -lSDL2_test $SDL_LIBS"
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
| 
						 | 
				
			
			@ -101,7 +101,10 @@ AC_SUBST(ISOS2)
 | 
			
		|||
 | 
			
		||||
dnl Check for SDL
 | 
			
		||||
SDL_VERSION=2.0.18
 | 
			
		||||
PKG_CHECK_MODULES([SDL], [sdl2 >= $SDL_VERSION],, AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!]))
 | 
			
		||||
AM_PATH_SDL2($SDL_VERSION,
 | 
			
		||||
            :,
 | 
			
		||||
	    AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])
 | 
			
		||||
)
 | 
			
		||||
CFLAGS="$CFLAGS $SDL_CFLAGS"
 | 
			
		||||
LIBS="$LIBS -lSDL2_test $SDL_LIBS"
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
		Loading…
	
		Reference in a new issue