Updated external OpenGL headers.

external/GLES2/gl2ext.h

@@ -1,7 +1,7 @@
 #ifndef __gl2ext_h_
 #define __gl2ext_h_
 
-/* $Revision: 19436 $ on $Date:: 2012-10-10 10:37:04 -0700 #$ */
+/* $Revision: 20040 $ on $Date:: 2013-01-03 01:43:00 -0800 #$ */
 
 #ifdef __cplusplus
 extern "C" {
@@ -1167,6 +1167,7 @@ typedef void (GL_APIENTRYP PFNGLRENDERBUFFERSTORAGEMULTISAMPLEANGLEPROC) (GLenum
 #endif
 
 #ifndef GL_ANGLE_instanced_arrays
+#define GL_ANGLE_instanced_arrays 1
 #ifdef GL_GLEXT_PROTOTYPES
 GL_APICALL void GL_APIENTRY glDrawArraysInstancedANGLE (GLenum mode, GLint first, GLsizei count, GLsizei primcount);
 GL_APICALL void GL_APIENTRY glDrawElementsInstancedANGLE (GLenum mode, GLsizei count, GLenum type, const void *indices, GLsizei primcount);

external/GLES3/gl3.h

@@ -2,7 +2,7 @@
 #define __gl3_h_
 
 /*
- * gl3.h last updated on $Date: 2012-09-12 10:13:02 -0700 (Wed, 12 Sep 2012) $
+ * gl3.h last updated on $Date: 2012-10-03 07:52:40 -0700 (Wed, 03 Oct 2012) $
  */
 
 #include <GLES3/gl3platform.h>
@@ -796,7 +796,7 @@ typedef struct __GLsync *GLsync;
 #define GL_TEXTURE_IMMUTABLE_FORMAT                      0x912F
 #define GL_MAX_ELEMENT_INDEX                             0x8D6B
 #define GL_NUM_SAMPLE_COUNTS                             0x9380
-#define GL_TEXTURE_IMMUTABLE_LEVELS                      0x8D63
+#define GL_TEXTURE_IMMUTABLE_LEVELS                      0x82DF
 
 /*-------------------------------------------------------------------------
  * Entrypoint definitions