diff --git a/include/osg/Texture b/include/osg/Texture
index 72d0c7068..8035732b7 100644
--- a/include/osg/Texture
+++ b/include/osg/Texture
@@ -305,6 +305,25 @@
     #define GL_RGBA_INTEGER_MODE_EXT                           0x8D9E
 #endif
 
+#ifndef GL_VERSION_1_1
+#define GL_R3_G3_B2                       0x2A10
+#define GL_RGB4                           0x804F
+#define GL_RGB5                           0x8050
+#define GL_RGB8                           0x8051
+#define GL_RGB10                          0x8052
+#define GL_RGB12                          0x8053
+#define GL_RGB16                          0x8054
+#define GL_RGBA2                          0x8055
+#define GL_RGBA4                          0x8056
+#define GL_RGB5_A1                        0x8057
+#define GL_RGBA8                          0x8058
+#define GL_RGB10_A2                       0x8059
+#define GL_RGBA12                         0x805A
+#define GL_RGBA16                         0x805B
+#define GL_BGR_EXT                        0x80E0
+#define GL_BGRA_EXT                       0x80E1
+#endif
+
 #ifndef GL_ARB_texture_rg
     #define GL_RG                             0x8227
     #define GL_RG_INTEGER                     0x8228