+ * Revision 1.24 2000-09-04 08:58:15 adam
+ * Added prefix yaz_ for most logging utility functions.
+ *
+ * Revision 1.23 2000/03/14 09:06:11 adam
+ * Added POSIX threads support for frontend server.
+ *
+ * Revision 1.22 2000/02/29 13:44:55 adam
+ * Check for config.h (currently not generated).
+ *
+ * Revision 1.21 2000/02/28 11:20:06 adam
+ * Using autoconf. New definitions: YAZ_BEGIN_CDECL/YAZ_END_CDECL.
+ *
+ * Revision 1.20 1999/11/30 13:47:12 adam
+ * Improved installation. Moved header files to include/yaz.
+ *
+ * Revision 1.19 1999/08/27 09:40:32 adam
+ * Renamed logf function to yaz_log. Removed VC++ project files.
+ *
+ * Revision 1.18 1998/10/28 10:27:00 adam
+ * New functions log_init_file, log_init_level, log_init_prefix.
+ *
+ * Revision 1.17 1997/12/09 16:11:02 adam
+ * Assume strerror is defined on Unixes as well. It's standard ANSI.
+ *
+ * Revision 1.16 1997/10/06 08:55:07 adam