-int z_External(ODR o, Z_External **p, int opt);
-Z_ext_typeent *z_ext_getentbyref(oid_value val);
+YAZ_EXPORT int z_External(ODR o, Z_External **p, int opt, const char *name);
+YAZ_EXPORT Z_ext_typeent *z_ext_getentbyref(oid_value val);
+YAZ_EXPORT Z_External *z_ext_record(ODR o, int format, const char *buf,
+ int len);
+
+#ifdef __cplusplus
+}
+#endif