GL_MESA_pack_invert.spec
GL_PACK_INVERT_MESA 0x8758
+GL_MESA_shader_debug.spec:
+ GL_DEBUG_OBJECT_MESA 0x8759
+ GL_DEBUG_PRINT_MESA 0x875A
+ GL_DEBUG_ASSERT_MESA 0x875B
+
GL_MESA_program_debug.spec:
GL_FRAGMENT_PROGRAM_CALLBACK_MESA 0x????
GL_VERTEX_PROGRAM_CALLBACK_MESA 0x????