From f6c5cd184a7d5cc81c0db83b1e02b2dace6ede0e Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Tue, 2 Oct 2007 20:54:12 +0000
Subject: [PATCH] Changed the GLU_TESS_CALLBACK in an attempt to avoid compile
 problems under OSX.

---
 include/osg/GLU | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/include/osg/GLU b/include/osg/GLU
index 40bc2faee..745618aae 100644
--- a/include/osg/GLU
+++ b/include/osg/GLU
@@ -14,17 +14,14 @@
 #ifndef OSG_GLU
 #define OSG_GLU 1
 
+#include <osg/GL>
+
 #if defined(__APPLE__) || defined (_AIX)
     #include <OpenGL/glu.h>
-    #define GLU_CALLBACK_PARAMETER ...
 #else
     #include <GL/glu.h>
 #endif
 
-#if !defined(GLU_CALLBACK_PARAMETER)
-    #define GLU_CALLBACK_PARAMETER
-#endif
-
-#define GLU_TESS_CALLBACK GLvoid (CALLBACK*)(GLU_CALLBACK_PARAMETER)
+typedef void (APIENTRY *GLU_TESS_CALLBACK)();
 
 #endif  // __osgGLU_h