+ * Revision 1.9 1999-07-14 10:59:26 adam
+ * Changed functions isc_getmethod, isams_getmethod.
+ * Improved fatal error handling (such as missing EXPLAIN schema).
+ *
+ * Revision 1.8 1999/06/30 09:08:23 adam
+ * Added coder to reset.
+ *
+ * Revision 1.7 1998/03/13 15:30:50 adam
+ * New functions isc_block_used and isc_block_size. Fixed 'leak'
+ * in isc_alloc_block.
+ *
+ * Revision 1.6 1997/09/17 12:19:10 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.5 1997/09/05 15:30:00 adam
+ * Changed prototype for chr_map_input - added const.
+ * Added support for C++, headers uses extern "C" for public definitions.
+ *
+ * Revision 1.4 1996/11/08 11:08:01 adam
+ * New internal release.
+ *
+ * Revision 1.3 1996/11/01 13:35:03 adam
+ * New element, max_blocks_mem, that control how many blocks of max size
+ * to store in memory during isc_merge.
+ *
+ * Revision 1.2 1996/10/29 16:44:42 adam
+ * Added isc_type, isc_block macros.
+ *
+ * Revision 1.1 1996/10/29 13:40:37 adam