+# ifndef GLX_NONE_EXT /* Hooray for gratuitious name changes. */
+# define GLX_NONE_EXT GLX_NONE
+# define GLX_TRANSPARENT_TYPE_EXT GLX_TRANSPARENT_TYPE
+# define GLX_TRANSPARENT_INDEX_EXT GLX_TRANSPARENT_INDEX
+# define GLX_TRANSPARENT_INDEX_VALUE_EXT GLX_TRANSPARENT_INDEX_VALUE
+# define GLX_TRANSPARENT_RGB_EXT GLX_TRANSPARENT_RGB
+# define GLX_TRANSPARENT_RED_VALUE_EXT GLX_TRANSPARENT_RED_VALUE
+# define GLX_TRANSPARENT_GREEN_VALUE_EXT GLX_TRANSPARENT_GREEN_VALUE
+# define GLX_TRANSPARENT_BLUE_VALUE_EXT GLX_TRANSPARENT_BLUE_VALUE
+# define GLX_TRANSPARENT_ALPHA_VALUE_EXT GLX_TRANSPARENT_ALPHA_VALUE
+# endif
+