From 82f7031ab59e90784eb698d890519df531a2715d Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 18 Jul 2013 16:27:17 +0000
Subject: [PATCH] From Lionel Lagarde, "The extension name is misspelled. It
 conflicts with GLEW."

---
 include/osg/GL2Extensions | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/osg/GL2Extensions b/include/osg/GL2Extensions
index 2c59feee0..39d2c3545 100644
--- a/include/osg/GL2Extensions
+++ b/include/osg/GL2Extensions
@@ -194,8 +194,8 @@ typedef char GLchar;
 #define GL_PROGRAM_POINT_SIZE_EXT                    0x8642
 #endif
 
-// ARB_tesselation_shader
-#ifndef GL_ARB_tesselation_shader
+// ARB_tessellation_shader
+#ifndef GL_ARB_tessellation_shader
 #define GL_PATCHES                                             0x000E
 #define GL_PATCH_VERTICES                                      0x8E72
 #define GL_PATCH_DEFAULT_INNER_LEVEL                           0x8E73