From df2f9f5f7c1a23cbac2e96f32a0e6b1ae83b4419 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Sun, 9 Dec 2007 16:14:07 +0000
Subject: [PATCH] From Ralf Karn, fixed "invalid enumerant" warning on
 TEXTURE_2D_ARRAY_EXT initialization

---
 src/osg/Texture2DArray.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/osg/Texture2DArray.cpp b/src/osg/Texture2DArray.cpp
index 6d7f3b3f0..25940430a 100644
--- a/src/osg/Texture2DArray.cpp
+++ b/src/osg/Texture2DArray.cpp
@@ -546,7 +546,9 @@ void Texture2DArray::Extensions::setupGLExtensions(unsigned int contextID)
     _isTexture2DArraySupported = isGLExtensionSupported(contextID,"GL_EXT_texture_array");
 
     glGetIntegerv(GL_MAX_TEXTURE_SIZE, &_max2DSize);
-    glGetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, &_maxLayerCount);
+    _maxLayerCount = 0;
+    if (_isTexture2DArraySupported)
+        glGetIntegerv(GL_MAX_ARRAY_TEXTURE_LAYERS_EXT, &_maxLayerCount);
 
     setGLExtensionFuncPtr(_glTexImage3D, "glTexImage3D","glTexImage3DEXT");
     setGLExtensionFuncPtr(_glTexSubImage3D, "glTexSubImage3D","glTexSubImage3DEXT");