+ * Revision 1.28 1999-03-31 11:18:25 adam
+ * Implemented odr_strdup. Added Reference ID to backend server API.
+ *
+ * Revision 1.27 1999/01/08 11:23:17 adam
+ * Added const modifier to some of the BER/ODR encoding routines.
+ *
+ * Revision 1.26 1998/03/20 17:29:20 adam
+ * Include of odr_use.h in odr.h. Added prototype for odr_enum.
+ *
+ * Revision 1.25 1998/02/11 11:53:33 adam
+ * Changed code so that it compiles as C++.
+ *
+ * Revision 1.24 1997/11/24 11:33:56 adam
+ * Using function odr_nullval() instead of global ODR_NULLVAL when
+ * appropriate.
+ *
+ * Revision 1.23 1997/09/01 08:49:49 adam
+ * New windows NT/95 port using MSV5.0. To export DLL functions the
+ * YAZ_EXPORT modifier was added. Defined in yconfig.h.
+ *
+ * Revision 1.22 1997/07/21 12:44:30 adam
+ * Moved definitions of nmem_block and nmem_control.
+ *
+ * Revision 1.21 1997/05/14 06:53:41 adam
+ * C++ support.
+ *
+ * Revision 1.20 1997/04/30 08:52:08 quinn