+ * Revision 1.6 1997-09-05 15:30:10 adam
+ * Changed prototype for chr_map_input - added const.
+ * Added support for C++, headers uses extern "C" for public definitions.
+ *
+ * Revision 1.5 1996/03/11 14:52:25 quinn
+ * Fixed update bug. Repeated insertion in the same area sometimes caused
+ * problems.
+ *
+ * Revision 1.4 1995/12/06 15:48:47 quinn