+ * Revision 1.18 1997-09-25 14:55:33 adam
+ * Windows port uses stat and not lstat.
+ *
+ * Revision 1.17 1997/09/09 13:38:06 adam
+ * Partial port to WIN95/NT.
+ *
+ * Revision 1.16 1996/10/29 14:06:45 adam
+ * Include zebrautl.h instead of alexutil.h.
+ *
+ * Revision 1.15 1996/06/04 10:18:58 adam
+ * Minor changes - removed include of ctype.h.
+ *
+ * Revision 1.14 1996/04/09 06:49:18 adam
+ * Traversal of directories doesn't follow symbolic links.
+ *
+ * Revision 1.13 1996/03/21 14:50:08 adam
+ * File update uses modify-time instead of change-time.
+ *
+ * Revision 1.12 1996/02/05 12:29:55 adam
+ * Logging reduced a bit.
+ * The remaining running time is estimated during register merge.
+ *
+ * Revision 1.11 1995/11/20 16:59:44 adam
+ * New update method: the 'old' keys are saved for each records.
+ *
+ * Revision 1.10 1995/11/20 11:56:22 adam
+ * Work on new traversal.
+ *
+ * Revision 1.9 1995/10/30 13:42:12 adam