Updated to SDL 2.0, and SDL 2.0 can now be installed coexisting with SDL 1.2

--HG--
rename : sdl-config.in => sdl2-config.in
rename : sdl.m4 => sdl2.m4
rename : sdl.pc.in => sdl2.pc.in

4 files changed, 738 insertions, 156 deletions

diff --git a/test/acinclude.m4 b/test/acinclude.m4
index b6df43f0..1124207c 100644
--- a/test/acinclude.m4
+++ b/test/acinclude.m4
@@ -5,12 +5,14 @@
 # stolen from Manish Singh
 # Shamelessly stolen from Owen Taylor
 
+# serial 1
+
 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 dnl
 AC_DEFUN([AM_PATH_SDL],
 [dnl 
-dnl Get the cflags and libraries from the sdl-config script
+dnl Get the cflags and libraries from the sdl2-config script
 dnl
 AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
             sdl_prefix="$withval", sdl_prefix="")
@@ -19,48 +21,63 @@ AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL
 AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
 		    , enable_sdltest=yes)
 
-  if test x$sdl_exec_prefix != x ; then
-    sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
-    if test x${SDL_CONFIG+set} != xset ; then
-       SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
+  min_sdl_version=ifelse([$1], ,0.9.0,$1)
+
+  if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
+    PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version],
+           [sdl_pc=yes],
+           [sdl_pc=no])
+  else
+    sdl_pc=no
+    if test x$sdl_exec_prefix != x ; then
+      sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix"
+      if test x${SDL_CONFIG+set} != xset ; then
+        SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config
+      fi
     fi
-  fi
-  if test x$sdl_prefix != x ; then
-    sdl_args="$sdl_args --prefix=$sdl_prefix"
-    if test x${SDL_CONFIG+set} != xset ; then
-       SDL_CONFIG=$sdl_prefix/bin/sdl-config
+    if test x$sdl_prefix != x ; then
+      sdl_config_args="$sdl_config_args --prefix=$sdl_prefix"
+      if test x${SDL_CONFIG+set} != xset ; then
+        SDL_CONFIG=$sdl_prefix/bin/sdl2-config
+      fi
     fi
   fi
 
-  if test "x$prefix" != xNONE; then
-    PATH="$prefix/bin:$prefix/usr/bin:$PATH"
-  fi
-  AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
-  min_sdl_version=ifelse([$1], ,0.11.0,$1)
-  AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
-  no_sdl=""
-  if test "$SDL_CONFIG" = "no" ; then
-    no_sdl=yes
+  if test "x$sdl_pc" = xyes ; then
+    no_sdl=""
+    SDL_CONFIG="pkg-config sdl2"
   else
-    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
-    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
-
-    sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
-    sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
-    sdl_micro_version=`$SDL_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 $SDL_LIBS"
+    as_save_PATH="$PATH"
+    if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then
+      PATH="$prefix/bin:$prefix/usr/bin:$PATH"
+    fi
+    AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH])
+    PATH="$as_save_PATH"
+    AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
+    no_sdl=""
+
+    if test "$SDL_CONFIG" = "no" ; then
+      no_sdl=yes
+    else
+      SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags`
+      SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs`
+
+      sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \
+             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+      sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \
+             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+      sdl_micro_version=`$SDL_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"
 dnl
 dnl Now check if the installed SDL is sufficiently new. (Also sanity
-dnl checks the results of sdl-config to some extent
+dnl checks the results of sdl2-config to some extent
 dnl
       rm -f conf.sdltest
       AC_TRY_RUN([
@@ -110,32 +127,36 @@ int main (int argc, char *argv[])
     }
   else
     {
-      printf("\n*** 'sdl-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 sdl-config is correct, then it is\n", major, minor, micro);
+      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 sdl-config was wrong, set the environment variable SDL_CONFIG\n");
-      printf("*** to point to the correct copy of sdl-config, and remove the file\n");
+      printf("*** If sdl2-config was wrong, set the environment variable SDL_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;
     }
 }
 
 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
-       CFLAGS="$ac_save_CFLAGS"
-       CXXFLAGS="$ac_save_CXXFLAGS"
-       LIBS="$ac_save_LIBS"
-     fi
+        CFLAGS="$ac_save_CFLAGS"
+        CXXFLAGS="$ac_save_CXXFLAGS"
+        LIBS="$ac_save_LIBS"
+      fi
+    fi
+    if test "x$no_sdl" = x ; then
+      AC_MSG_RESULT(yes)
+    else
+      AC_MSG_RESULT(no)
+    fi
   fi
   if test "x$no_sdl" = x ; then
-     AC_MSG_RESULT(yes)
-     ifelse([$2], , :, [$2])     
+     ifelse([$2], , :, [$2])
   else
-     AC_MSG_RESULT(no)
      if test "$SDL_CONFIG" = "no" ; then
-       echo "*** The sdl-config script installed by SDL could not be found"
+       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 SDL_CONFIG environment variable to the"
-       echo "*** full path to sdl-config."
+       echo "*** full path to sdl2-config."
      else
        if test -f conf.sdltest ; then
         :
@@ -165,7 +186,7 @@ int main(int argc, char *argv[])
         [ 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 sdl-config script: $SDL_CONFIG" ])
+          echo "*** may want to edit the sdl2-config script: $SDL_CONFIG" ])
           CFLAGS="$ac_save_CFLAGS"
           CXXFLAGS="$ac_save_CXXFLAGS"
           LIBS="$ac_save_LIBS"
@@ -179,3 +200,160 @@ int main(int argc, char *argv[])
   AC_SUBST(SDL_LIBS)
   rm -f conf.sdltest
 ])
+# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+# serial 1 (pkg-config-0.24)
+# 
+# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# PKG_PROG_PKG_CONFIG([MIN-VERSION])
+# ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
+AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
+AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=m4_default([$1], [0.9.0])
+	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		AC_MSG_RESULT([yes])
+	else
+		AC_MSG_RESULT([no])
+		PKG_CONFIG=""
+	fi
+fi[]dnl
+])# PKG_PROG_PKG_CONFIG
+
+# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# Check to see whether a particular set of modules exists.  Similar
+# to PKG_CHECK_MODULES(), but does not set variables or print errors.
+#
+# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+# only at the first occurence in configure.ac, so if the first place
+# it's called might be skipped (such as if it is within an "if", you
+# have to call PKG_CHECK_EXISTS manually
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+  m4_default([$2], [:])
+m4_ifvaln([$3], [else
+  $3])dnl
+fi])
+
+# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+# ---------------------------------------------
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+    pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+    PKG_CHECK_EXISTS([$3],
+                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
+		     [pkg_failed=yes])
+ else
+    pkg_failed=untried
+fi[]dnl
+])# _PKG_CONFIG
+
+# _PKG_SHORT_ERRORS_SUPPORTED
+# -----------------------------
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi[]dnl
+])# _PKG_SHORT_ERRORS_SUPPORTED
+
+
+# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+# [ACTION-IF-NOT-FOUND])
+#
+#
+# Note that if there is a possibility the first call to
+# PKG_CHECK_MODULES might not happen, you should be sure to include an
+# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+#
+#
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+   	AC_MSG_RESULT([no])
+        _PKG_SHORT_ERRORS_SUPPORTED
+        if test $_pkg_short_errors_supported = yes; then
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
+        else 
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+	m4_default([$4], [AC_MSG_ERROR(
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT])dnl
+        ])
+elif test $pkg_failed = untried; then
+     	AC_MSG_RESULT([no])
+	m4_default([$4], [AC_MSG_FAILURE(
+[The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])dnl
+        ])
+else
+	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+        AC_MSG_RESULT([yes])
+	$3
+fi[]dnl
+])# PKG_CHECK_MODULES
diff --git a/test/aclocal.m4 b/test/aclocal.m4
index b6df43f0..1124207c 100644
--- a/test/aclocal.m4
+++ b/test/aclocal.m4
@@ -5,12 +5,14 @@
 # stolen from Manish Singh
 # Shamelessly stolen from Owen Taylor
 
+# serial 1
+
 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 dnl
 AC_DEFUN([AM_PATH_SDL],
 [dnl 
-dnl Get the cflags and libraries from the sdl-config script
+dnl Get the cflags and libraries from the sdl2-config script
 dnl
 AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
             sdl_prefix="$withval", sdl_prefix="")
@@ -19,48 +21,63 @@ AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL
 AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
 		    , enable_sdltest=yes)
 
-  if test x$sdl_exec_prefix != x ; then
-    sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
-    if test x${SDL_CONFIG+set} != xset ; then
-       SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
+  min_sdl_version=ifelse([$1], ,0.9.0,$1)
+
+  if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
+    PKG_CHECK_MODULES([SDL], [sdl2 >= $min_sdl_version],
+           [sdl_pc=yes],
+           [sdl_pc=no])
+  else
+    sdl_pc=no
+    if test x$sdl_exec_prefix != x ; then
+      sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix"
+      if test x${SDL_CONFIG+set} != xset ; then
+        SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config
+      fi
     fi
-  fi
-  if test x$sdl_prefix != x ; then
-    sdl_args="$sdl_args --prefix=$sdl_prefix"
-    if test x${SDL_CONFIG+set} != xset ; then
-       SDL_CONFIG=$sdl_prefix/bin/sdl-config
+    if test x$sdl_prefix != x ; then
+      sdl_config_args="$sdl_config_args --prefix=$sdl_prefix"
+      if test x${SDL_CONFIG+set} != xset ; then
+        SDL_CONFIG=$sdl_prefix/bin/sdl2-config
+      fi
     fi
   fi
 
-  if test "x$prefix" != xNONE; then
-    PATH="$prefix/bin:$prefix/usr/bin:$PATH"
-  fi
-  AC_PATH_PROG(SDL_CONFIG, sdl-config, no, [$PATH])
-  min_sdl_version=ifelse([$1], ,0.11.0,$1)
-  AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
-  no_sdl=""
-  if test "$SDL_CONFIG" = "no" ; then
-    no_sdl=yes
+  if test "x$sdl_pc" = xyes ; then
+    no_sdl=""
+    SDL_CONFIG="pkg-config sdl2"
   else
-    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
-    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
-
-    sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
-    sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
-           sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
-    sdl_micro_version=`$SDL_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 $SDL_LIBS"
+    as_save_PATH="$PATH"
+    if test "x$prefix" != xNONE && test "$cross_compiling" != yes; then
+      PATH="$prefix/bin:$prefix/usr/bin:$PATH"
+    fi
+    AC_PATH_PROG(SDL_CONFIG, sdl2-config, no, [$PATH])
+    PATH="$as_save_PATH"
+    AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
+    no_sdl=""
+
+    if test "$SDL_CONFIG" = "no" ; then
+      no_sdl=yes
+    else
+      SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags`
+      SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs`
+
+      sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \
+             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
+      sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \
+             sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
+      sdl_micro_version=`$SDL_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"
 dnl
 dnl Now check if the installed SDL is sufficiently new. (Also sanity
-dnl checks the results of sdl-config to some extent
+dnl checks the results of sdl2-config to some extent
 dnl
       rm -f conf.sdltest
       AC_TRY_RUN([
@@ -110,32 +127,36 @@ int main (int argc, char *argv[])
     }
   else
     {
-      printf("\n*** 'sdl-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 sdl-config is correct, then it is\n", major, minor, micro);
+      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 sdl-config was wrong, set the environment variable SDL_CONFIG\n");
-      printf("*** to point to the correct copy of sdl-config, and remove the file\n");
+      printf("*** If sdl2-config was wrong, set the environment variable SDL_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;
     }
 }
 
 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
-       CFLAGS="$ac_save_CFLAGS"
-       CXXFLAGS="$ac_save_CXXFLAGS"
-       LIBS="$ac_save_LIBS"
-     fi
+        CFLAGS="$ac_save_CFLAGS"
+        CXXFLAGS="$ac_save_CXXFLAGS"
+        LIBS="$ac_save_LIBS"
+      fi
+    fi
+    if test "x$no_sdl" = x ; then
+      AC_MSG_RESULT(yes)
+    else
+      AC_MSG_RESULT(no)
+    fi
   fi
   if test "x$no_sdl" = x ; then
-     AC_MSG_RESULT(yes)
-     ifelse([$2], , :, [$2])     
+     ifelse([$2], , :, [$2])
   else
-     AC_MSG_RESULT(no)
      if test "$SDL_CONFIG" = "no" ; then
-       echo "*** The sdl-config script installed by SDL could not be found"
+       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 SDL_CONFIG environment variable to the"
-       echo "*** full path to sdl-config."
+       echo "*** full path to sdl2-config."
      else
        if test -f conf.sdltest ; then
         :
@@ -165,7 +186,7 @@ int main(int argc, char *argv[])
         [ 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 sdl-config script: $SDL_CONFIG" ])
+          echo "*** may want to edit the sdl2-config script: $SDL_CONFIG" ])
           CFLAGS="$ac_save_CFLAGS"
           CXXFLAGS="$ac_save_CXXFLAGS"
           LIBS="$ac_save_LIBS"
@@ -179,3 +200,160 @@ int main(int argc, char *argv[])
   AC_SUBST(SDL_LIBS)
   rm -f conf.sdltest
 ])
+# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
+# serial 1 (pkg-config-0.24)
+# 
+# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# PKG_PROG_PKG_CONFIG([MIN-VERSION])
+# ----------------------------------
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
+AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
+AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=m4_default([$1], [0.9.0])
+	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		AC_MSG_RESULT([yes])
+	else
+		AC_MSG_RESULT([no])
+		PKG_CONFIG=""
+	fi
+fi[]dnl
+])# PKG_PROG_PKG_CONFIG
+
+# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+#
+# Check to see whether a particular set of modules exists.  Similar
+# to PKG_CHECK_MODULES(), but does not set variables or print errors.
+#
+# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+# only at the first occurence in configure.ac, so if the first place
+# it's called might be skipped (such as if it is within an "if", you
+# have to call PKG_CHECK_EXISTS manually
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+  m4_default([$2], [:])
+m4_ifvaln([$3], [else
+  $3])dnl
+fi])
+
+# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+# ---------------------------------------------
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+    pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+    PKG_CHECK_EXISTS([$3],
+                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
+		     [pkg_failed=yes])
+ else
+    pkg_failed=untried
+fi[]dnl
+])# _PKG_CONFIG
+
+# _PKG_SHORT_ERRORS_SUPPORTED
+# -----------------------------
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+else
+        _pkg_short_errors_supported=no
+fi[]dnl
+])# _PKG_SHORT_ERRORS_SUPPORTED
+
+
+# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+# [ACTION-IF-NOT-FOUND])
+#
+#
+# Note that if there is a possibility the first call to
+# PKG_CHECK_MODULES might not happen, you should be sure to include an
+# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+#
+#
+# --------------------------------------------------------------
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+   	AC_MSG_RESULT([no])
+        _PKG_SHORT_ERRORS_SUPPORTED
+        if test $_pkg_short_errors_supported = yes; then
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
+        else 
+	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
+        fi
+	# Put the nasty error message in config.log where it belongs
+	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+	m4_default([$4], [AC_MSG_ERROR(
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT])dnl
+        ])
+elif test $pkg_failed = untried; then
+     	AC_MSG_RESULT([no])
+	m4_default([$4], [AC_MSG_FAILURE(
+[The pkg-config script could not be found or is too old.  Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])dnl
+        ])
+else
+	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+        AC_MSG_RESULT([yes])
+	$3
+fi[]dnl
+])# PKG_CHECK_MODULES
diff --git a/test/configure b/test/configure
index ce85af5b..9902ccf1 100755
--- a/test/configure
+++ b/test/configure
@@ -632,9 +632,12 @@ OBJEXT
 OSMESA_CONFIG
 EXE
 MATHLIB
-SDL_CONFIG
+PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR
 SDL_CFLAGS
 SDL_LIBS
+SDL_CONFIG
 XMKMF
 CPP
 GLLIB
@@ -650,6 +653,11 @@ CFLAGS
 LDFLAGS
 LIBS
 CPPFLAGS
+PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR
+SDL_CFLAGS
+SDL_LIBS
 XMKMF
 CPP'
 
@@ -1245,6 +1253,13 @@ Some influential environment variables:
   LIBS        libraries to pass to the linker, e.g. -l<library>
   CPPFLAGS    C/C++/Objective C preprocessor flags, e.g. -I<include dir> if
               you have headers in a nonstandard directory <include dir>
+  PKG_CONFIG  path to pkg-config utility
+  PKG_CONFIG_PATH
+              directories to add to pkg-config's search path
+  PKG_CONFIG_LIBDIR
+              path overriding pkg-config's built-in search path
+  SDL_CFLAGS  C compiler flags for SDL, overriding pkg-config
+  SDL_LIBS    linker flags for SDL, overriding pkg-config
   XMKMF       Path to xmkmf, Makefile generator for X Window System
   CPP         C preprocessor
 
@@ -2906,7 +2921,130 @@ esac
 
 
 
-SDL_VERSION=1.3.0
+SDL_VERSION=2.0.0
+
+
+
+
+
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+	if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_path_PKG_CONFIG+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_PKG_CONFIG="$PKG_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
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+  { echo "$as_me:$LINENO: result: $PKG_CONFIG" >&5
+echo "${ECHO_T}$PKG_CONFIG" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKG_CONFIG"; then
+  ac_pt_PKG_CONFIG=$PKG_CONFIG
+  # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ echo "$as_me:$LINENO: checking for $ac_word" >&5
+echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
+if test "${ac_cv_path_ac_pt_PKG_CONFIG+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  case $ac_pt_PKG_CONFIG in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_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
+  test -z "$as_dir" && as_dir=.
+  for ac_exec_ext in '' $ac_executable_extensions; do
+  if { test -f "$as_dir/$ac_word$ac_exec_ext" && $as_test_x "$as_dir/$ac_word$ac_exec_ext"; }; then
+    ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+    echo "$as_me:$LINENO: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
+if test -n "$ac_pt_PKG_CONFIG"; then
+  { echo "$as_me:$LINENO: result: $ac_pt_PKG_CONFIG" >&5
+echo "${ECHO_T}$ac_pt_PKG_CONFIG" >&6; }
+else
+  { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+fi
+
+  if test "x$ac_pt_PKG_CONFIG" = x; then
+    PKG_CONFIG=""
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ echo "$as_me:$LINENO: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&5
+echo "$as_me: WARNING: In the future, Autoconf will not detect cross-tools
+whose name does not start with the host triplet.  If you think this
+configuration is useful to you, please write to autoconf@gnu.org." >&2;}
+ac_tool_warned=yes ;;
+esac
+    PKG_CONFIG=$ac_pt_PKG_CONFIG
+  fi
+else
+  PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+fi
+
+fi
+if test -n "$PKG_CONFIG"; then
+	_pkg_min_version=0.9.0
+	{ echo "$as_me:$LINENO: checking pkg-config is at least version $_pkg_min_version" >&5
+echo $ECHO_N "checking pkg-config is at least version $_pkg_min_version... $ECHO_C" >&6; }
+	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+		{ echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+	else
+		{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+		PKG_CONFIG=""
+	fi
+fi
 
 # Check whether --with-sdl-prefix was given.
 if test "${with_sdl_prefix+set}" = set; then
@@ -2931,24 +3069,104 @@ else
 fi
 
 
-  if test x$sdl_exec_prefix != x ; then
-    sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
-    if test x${SDL_CONFIG+set} != xset ; then
-       SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
+  min_sdl_version=$SDL_VERSION
+
+  if test "x$sdl_prefix$sdl_exec_prefix" = x ; then
+
+pkg_failed=no
+{ echo "$as_me:$LINENO: checking for SDL" >&5
+echo $ECHO_N "checking for SDL... $ECHO_C" >&6; }
+
+if test -n "$SDL_CFLAGS"; then
+    pkg_cv_SDL_CFLAGS="$SDL_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\"") >&5
+  ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  pkg_cv_SDL_CFLAGS=`$PKG_CONFIG --cflags "sdl2 >= $min_sdl_version" 2>/dev/null`
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+if test -n "$SDL_LIBS"; then
+    pkg_cv_SDL_LIBS="$SDL_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+    if test -n "$PKG_CONFIG" && \
+    { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"sdl2 >= \$min_sdl_version\"") >&5
+  ($PKG_CONFIG --exists --print-errors "sdl2 >= $min_sdl_version") 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; then
+  pkg_cv_SDL_LIBS=`$PKG_CONFIG --libs "sdl2 >= $min_sdl_version" 2>/dev/null`
+else
+  pkg_failed=yes
+fi
+ else
+    pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+   	{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+        _pkg_short_errors_supported=yes
+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 >= $min_sdl_version" 2>&1`
+        else
+	        SDL_PKG_ERRORS=`$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
+
+	sdl_pc=no
+elif test $pkg_failed = untried; then
+     	{ echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+	sdl_pc=no
+else
+	SDL_CFLAGS=$pkg_cv_SDL_CFLAGS
+	SDL_LIBS=$pkg_cv_SDL_LIBS
+        { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+	sdl_pc=yes
+fi
+  else
+    sdl_pc=no
+    if test x$sdl_exec_prefix != x ; then
+      sdl_config_args="$sdl_config_args --exec-prefix=$sdl_exec_prefix"
+      if test x${SDL_CONFIG+set} != xset ; then
+        SDL_CONFIG=$sdl_exec_prefix/bin/sdl2-config
+      fi
     fi
-  fi
-  if test x$sdl_prefix != x ; then
-    sdl_args="$sdl_args --prefix=$sdl_prefix"
-    if test x${SDL_CONFIG+set} != xset ; then
-       SDL_CONFIG=$sdl_prefix/bin/sdl-config
+    if test x$sdl_prefix != x ; then
+      sdl_config_args="$sdl_config_args --prefix=$sdl_prefix"
+      if test x${SDL_CONFIG+set} != xset ; then
+        SDL_CONFIG=$sdl_prefix/bin/sdl2-config
+      fi
     fi
   fi
 
-  if test "x$prefix" != xNONE; then
-    PATH="$prefix/bin:$prefix/usr/bin:$PATH"
-  fi
-  # Extract the first word of "sdl-config", so it can be a program name with args.
-set dummy sdl-config; ac_word=$2
+  if test "x$sdl_pc" = xyes ; then
+    no_sdl=""
+    SDL_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=$2
 { echo "$as_me:$LINENO: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6; }
 if test "${ac_cv_path_SDL_CONFIG+set}" = set; then
@@ -2988,29 +3206,30 @@ echo "${ECHO_T}no" >&6; }
 fi
 
 
-  min_sdl_version=$SDL_VERSION
-  { echo "$as_me:$LINENO: checking for SDL - version >= $min_sdl_version" >&5
+    PATH="$as_save_PATH"
+    { echo "$as_me:$LINENO: checking for SDL - version >= $min_sdl_version" >&5
 echo $ECHO_N "checking for SDL - version >= $min_sdl_version... $ECHO_C" >&6; }
-  no_sdl=""
-  if test "$SDL_CONFIG" = "no" ; then
-    no_sdl=yes
-  else
-    SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
-    SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
-
-    sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
-           sed 's/\([0-9]*\).\([0-9]*\).\([0-9]*\)/\1/'`
-    sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
-           sed 's/\([0-9]*\).\([0-9]*\).\([0-9]*\)/\2/'`
-    sdl_micro_version=`$SDL_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 $SDL_LIBS"
+    no_sdl=""
+
+    if test "$SDL_CONFIG" = "no" ; then
+      no_sdl=yes
+    else
+      SDL_CFLAGS=`$SDL_CONFIG $sdl_config_args --cflags`
+      SDL_LIBS=`$SDL_CONFIG $sdl_config_args --libs`
+
+      sdl_major_version=`$SDL_CONFIG $sdl_config_args --version | \
+             sed 's/\([0-9]*\).\([0-9]*\).\([0-9]*\)/\1/'`
+      sdl_minor_version=`$SDL_CONFIG $sdl_config_args --version | \
+             sed 's/\([0-9]*\).\([0-9]*\).\([0-9]*\)/\2/'`
+      sdl_micro_version=`$SDL_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"
@@ -3068,11 +3287,11 @@ int main (int argc, char *argv[])
     }
   else
     {
-      printf("\n*** 'sdl-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 sdl-config is correct, then it is\n", major, minor, micro);
+      printf("\n*** 'sdl2-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
+      printf("*** of SDL required is %d.%d.%d. If sdl2-config is correct, then it is\n", major, minor, micro);
       printf("*** best to upgrade to the required version.\n");
-      printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
-      printf("*** to point to the correct copy of sdl-config, and remove the file\n");
+      printf("*** If sdl2-config was wrong, set the environment variable SDL_CONFIG\n");
+      printf("*** to point to the correct copy of sdl2-config, and remove the file\n");
       printf("*** config.cache before re-running configure\n");
       return 1;
     }
@@ -3113,23 +3332,27 @@ rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext conftest.$a
 fi
 
 
-       CFLAGS="$ac_save_CFLAGS"
-       CXXFLAGS="$ac_save_CXXFLAGS"
-       LIBS="$ac_save_LIBS"
-     fi
+        CFLAGS="$ac_save_CFLAGS"
+        CXXFLAGS="$ac_save_CXXFLAGS"
+        LIBS="$ac_save_LIBS"
+      fi
+    fi
+    if test "x$no_sdl" = x ; then
+      { echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6; }
+    else
+      { echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6; }
+    fi
   fi
   if test "x$no_sdl" = x ; then
-     { echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6; }
      :
   else
-     { echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6; }
      if test "$SDL_CONFIG" = "no" ; then
-       echo "*** The sdl-config script installed by SDL could not be found"
+       echo "*** The sdl2-config script installed by SDL could not be found"
        echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
        echo "*** your path, or set the SDL_CONFIG environment variable to the"
-       echo "*** full path to sdl-config."
+       echo "*** full path to sdl2-config."
      else
        if test -f conf.sdltest ; then
         :
@@ -3195,7 +3418,7 @@ sed 's/^/| /' conftest.$ac_ext >&5
 	 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 sdl-config script: $SDL_CONFIG"
+          echo "*** may want to edit the sdl2-config script: $SDL_CONFIG"
 fi
 
 rm -f core conftest.err conftest.$ac_objext conftest_ipa8_conftest.oo \
@@ -4567,9 +4790,12 @@ OBJEXT!$OBJEXT$ac_delim
 OSMESA_CONFIG!$OSMESA_CONFIG$ac_delim
 EXE!$EXE$ac_delim
 MATHLIB!$MATHLIB$ac_delim
-SDL_CONFIG!$SDL_CONFIG$ac_delim
+PKG_CONFIG!$PKG_CONFIG$ac_delim
+PKG_CONFIG_PATH!$PKG_CONFIG_PATH$ac_delim
+PKG_CONFIG_LIBDIR!$PKG_CONFIG_LIBDIR$ac_delim
 SDL_CFLAGS!$SDL_CFLAGS$ac_delim
 SDL_LIBS!$SDL_LIBS$ac_delim
+SDL_CONFIG!$SDL_CONFIG$ac_delim
 XMKMF!$XMKMF$ac_delim
 CPP!$CPP$ac_delim
 GLLIB!$GLLIB$ac_delim
@@ -4578,7 +4804,7 @@ LIBOBJS!$LIBOBJS$ac_delim
 LTLIBOBJS!$LTLIBOBJS$ac_delim
 _ACEOF
 
-  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 64; then
+  if test `sed -n "s/.*$ac_delim\$/X/p" conf$$subs.sed | grep -c X` = 67; then
     break
   elif $ac_last_try; then
     { { echo "$as_me:$LINENO: error: could not make $CONFIG_STATUS" >&5
diff --git a/test/configure.in b/test/configure.in
index a808d664..8af776f5 100644
--- a/test/configure.in
+++ b/test/configure.in
@@ -65,7 +65,7 @@ AC_SUBST(EXE)
 AC_SUBST(MATHLIB)
 
 dnl Check for SDL
-SDL_VERSION=1.3.0
+SDL_VERSION=2.0.0
 AM_PATH_SDL($SDL_VERSION,
             :,
 	    AC_MSG_ERROR([*** SDL version $SDL_VERSION not found!])