+YAZ_EXPORT
+Z_RPNQuery *yaz_clone_z_RPNQuery(Z_RPNQuery *q, NMEM out);
+
+YAZ_EXPORT
+Z_Query *yaz_clone_z_Query(Z_Query *q, NMEM out);
+
+YAZ_EXPORT
+Z_NamePlusRecord *yaz_clone_z_NamePlusRecord(Z_NamePlusRecord *s, NMEM out);
+
+YAZ_EXPORT
+Z_RecordComposition *yaz_clone_z_RecordComposition(Z_RecordComposition *s,
+ NMEM out);
+