From e5afca739a0bfbcf2daab905b0db2427c350e206 Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Fri, 15 Jun 2007 12:26:29 +0000
Subject: [PATCH] Make sure to check for glu.h before enabling glX support. We
 don't  directly need GLU, but SDL_opengl.h tries to include it, and it shows
 that  the workstation is misconfigured or incompletely configured if just
 this  one header is missing.

   Fixes Bugzilla #336.
---
 configure.in | 1 +
 1 file changed, 1 insertion(+)

diff --git a/configure.in b/configure.in
index 5d0e33ab7..f702c74f9 100644
--- a/configure.in
+++ b/configure.in
@@ -1550,6 +1550,7 @@ CheckOpenGLX11()
         AC_TRY_COMPILE([
          #include <GL/gl.h>
          #include <GL/glx.h>
+         #include <GL/glu.h>
         ],[
         ],[
         video_opengl=yes