From de9869e2a71656d6a35d412fdabbf66b0a81df4a Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 30 Jun 2007 08:09:53 +0000
Subject: [PATCH] OpenGL is in the X11 directory on some systems.

---
 test/configure.in | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/test/configure.in b/test/configure.in
index 057c11e26..4455bb9c0 100644
--- a/test/configure.in
+++ b/test/configure.in
@@ -68,6 +68,21 @@ AM_PATH_SDL($SDL_VERSION,
 CFLAGS="$CFLAGS $SDL_CFLAGS"
 LIBS="$LIBS $SDL_LIBS"
 
+dnl Check for X11 path, needed for OpenGL on some systems
+AC_PATH_X
+if test x$have_x = xyes; then
+    if test x$ac_x_includes = xno || test x$ac_x_includes = x; then
+        :
+    else
+        CFLAGS="$CFLAGS -I$ac_x_includes"
+    fi
+    if test x$ac_x_libraries = xno || test x$ac_x_libraries = x; then
+        :
+    else
+        XPATH="-L$ac_x_libraries"
+    fi
+fi
+
 dnl Check for OpenGL
 AC_MSG_CHECKING(for OpenGL support)
 have_opengl=no
@@ -80,7 +95,7 @@ have_opengl=yes
 AC_MSG_RESULT($have_opengl)
 if test x$have_opengl = xyes; then
     CFLAGS="$CFLAGS -DHAVE_OPENGL"
-    GLLIB="$SYS_GL_LIBS"
+    GLLIB="$XPATH $SYS_GL_LIBS"
 else
     GLLIB=""
 fi