pull in rpc/pmap_clnt.h to silence gcc and prototype xdr_opaque_auth for the same reason

src/include/rpc/rpc.h

@@ -1,4 +1,4 @@
-/*	$OpenBSD: rpc.h,v 1.6 1997/09/21 10:46:13 niklas Exp $	*/
+/*	$OpenBSD: rpc.h,v 1.7 1998/12/20 23:43:18 millert Exp $	*/
 /*	$NetBSD: rpc.h,v 1.5 1994/12/04 01:15:30 cgd Exp $	*/
 
 /*
@@ -54,6 +54,9 @@
 /* Client side (mostly) remote procedure call */
 #include <rpc/clnt.h>		/* generic rpc stuff */
 
+/* Client side (mostly) pmap functions */
+#include <rpc/pmap_clnt.h>	/* generic pmap stuff */
+
 /* semi-private protocol headers */
 #include <rpc/rpc_msg.h>	/* protocol for rpc messages */
 #include <rpc/auth_unix.h>	/* protocol for unix style cred */
@@ -96,6 +99,7 @@ extern int callrpc __P((char *, int, int, int, xdrproc_t, char *,
 	xdrproc_t , char *));
 extern int getrpcport __P((char *, int, int, int));
 
+extern bool_t xdr_opaque_auth __P((XDR *, struct opaque_auth *));
 __END_DECLS
 
 #endif /* !_RPC_RPC_H */