EXT(EXT_unpack_subimage , dummy_true , x , x , x , ES2, 2011)
EXT(EXT_vertex_array , dummy_true , GLL, x , x , x , 1995)
EXT(EXT_vertex_array_bgra , EXT_vertex_array_bgra , GLL, GLC, x , x , 2008)
+EXT(EXT_vertex_attrib_64bit , ARB_vertex_attrib_64bit , 32, GLC, x , x , 2010)
EXT(EXT_window_rectangles , EXT_window_rectangles , GLL, GLC, x , 30, 2016)
EXT(GREMEDY_string_marker , GREMEDY_string_marker , GLL, GLC, x , x , 2007)