diff --git a/include/rpcsvc/ypclnt.h b/include/rpcsvc/ypclnt.h
index a0de83857296..2040459c8689 100644
--- a/include/rpcsvc/ypclnt.h
+++ b/include/rpcsvc/ypclnt.h
@@ -26,12 +26,14 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: ypclnt.h,v 1.4 1996/12/30 14:01:12 peter Exp $
+ *	$Id: ypclnt.h,v 1.9 1997/05/28 04:38:25 wpaul Exp $
  */
 
 #ifndef _RPCSVC_YPCLNT_H_
 #define _RPCSVC_YPCLNT_H_
 
+#include <sys/cdefs.h>
+
 #define YPERR_BADARGS	1		/* args to function are bad */
 #define YPERR_RPC	2		/* RPC failure */
 #define YPERR_DOMAIN	3		/* can't bind to a server for domain */
@@ -59,10 +61,12 @@
 
 struct ypall_callback {
 	/* return non-0 to stop getting called */
-	int (*foreach) __P((u_long, char *, int, char *, int, void *));
+	int (*foreach) __P((unsigned long, char *, int, char *, int, void *));
 	char *data;		/* opaque pointer for use of callback fn */
 };
 
+struct dom_binding;
+
 __BEGIN_DECLS
 int	yp_bind		__P((char *dom));
 int	_yp_dobind	__P((char *dom, struct dom_binding **ypdb));