+ * Revision 1.10 1999-11-30 13:48:04 adam
+ * Improved installation. Updated for inclusion of YAZ header files.
+ *
+ * Revision 1.9 1999/07/13 14:45:42 adam
+ * Fixed memory leak.
+ *
+ * Revision 1.8 1999/05/26 07:49:14 adam
+ * C++ compilation.
+ *
+ * Revision 1.7 1998/09/22 10:03:46 adam
+ * Changed result sets to be persistent in the sense that they can
+ * be re-searched if needed.
+ * Fixed memory leak in rsm_or.
+ *
+ * Revision 1.6 1998/03/05 08:36:28 adam
+ * New result set model.
+ *
+ * Revision 1.5 1997/12/18 10:54:25 adam
+ * New method result set method rs_hits that returns the number of
+ * hits in result-set (if known). The ranked result set returns real
+ * number of hits but only when not combined with other operands.
+ *
+ * Revision 1.4 1997/10/31 12:37:55 adam
+ * Code calls xfree() instead of free().
+ *
+ * Revision 1.3 1997/09/09 13:38:16 adam
+ * Partial port to WIN95/NT.
+ *
+ * Revision 1.2 1996/12/23 15:30:49 adam
+ * Work on truncation.
+ *
+ * Revision 1.1 1996/12/20 11:07:21 adam