+
+#ifdef MACRO_PREDEF
+
+/* Dummy values */
+void auth_heimdal_init(auth_instance *ablock) {}
+int auth_heimdal_server(auth_instance *ablock, uschar *data) {return 0;}
+int auth_heimdal_client(auth_instance *ablock, smtp_inblock *inblock,
+ smtp_outblock *outblock, int timeout, uschar *buffer, int buffsize) {return 0;}
+
+#else /*!MACRO_PREDEF*/
+
+
+