+ * Revision 1.51 1997-10-27 14:33:06 adam
+ * Moved towards generic character mapping depending on "structure"
+ * field in abstract syntax file. Fixed a few memory leaks. Fixed
+ * bug with negative integers when doing searches with relational
+ * operators.
+ *
+ * Revision 1.50 1997/09/29 09:08:36 adam
+ * Revised locking system to be thread safe for the server.
+ *
+ * Revision 1.49 1997/09/25 14:57:23 adam
+ * Windows NT port.
+ *
+ * Revision 1.48 1997/09/17 12:19:19 adam
+ * Zebra version corresponds to YAZ version 1.4.
+ * Changed Zebra server so that it doesn't depend on global common_resource.
+ *
+ * Revision 1.47 1997/09/04 13:58:36 adam
+ * New retrieve/extract method tellf (added).
+ * Added O_BINARY for open calls.
+ *
+ * Revision 1.46 1997/07/28 08:30:47 adam