/* Define if we have the PNG library. */
#undef HAVE_PNG
-/* Define if we have the JPEG library. */
+/* Define if we have the JPEG library (version 6b or later). */
#undef HAVE_JPEG
/* Define if we have the TIFF library. */
#undef HAVE_TIFF
-/* Define if we have the GIF library. */
+/* Define if we have the GIF library (version 4.1.0b1 or later). */
#undef HAVE_GIF
/* Define if libXaw3d is available. */