From e3a1f664b9d0e3e0160b339de48f29c7ff757bf4 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Mon, 22 Feb 2010 08:48:02 +0000
Subject: [PATCH] Seperated out the #define of GL_PERSPECTIVE_CORRECTION_HINT
 to fix GL3 build

---
 src/osgDB/ObjectWrapper.cpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/osgDB/ObjectWrapper.cpp b/src/osgDB/ObjectWrapper.cpp
index 956ed7986..ba77842ba 100644
--- a/src/osgDB/ObjectWrapper.cpp
+++ b/src/osgDB/ObjectWrapper.cpp
@@ -48,8 +48,11 @@
 
 #include <sstream>
 
-#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE)
+#ifndef GL_PERSPECTIVE_CORRECTION_HINT
     #define GL_PERSPECTIVE_CORRECTION_HINT      0x0C50
+#endif
+
+#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE)
     #define GL_POLYGON_SMOOTH_HINT              0x0C53
     #define GL_LINE_SMOOTH_HINT                 0x0C52
     #define GL_FRAGMENT_SHADER_DERIVATIVE_HINT  0x8B8B