getpublickey.c: ifdef out yp headers

If we don't compile in YP support, don't include YP

Signed-off-by: Thorsten Kukuk <kukuk@thkukuk.de>
Signed-off-by: Steve Dickson <steved@redhat.com>
diff --git a/lib/libc/rpc/getpublickey.c b/lib/libc/rpc/getpublickey.c
index d2994bbcc400..6b5345fb7108 100644
--- a/lib/libc/rpc/getpublickey.c
+++ b/lib/libc/rpc/getpublickey.c
@@ -44,8 +44,10 @@ static char sccsid[] = "@(#)publickey.c 1.10 91/03/11 Copyr 1986 Sun Micro";
 #include <pwd.h>
 #include <rpc/rpc.h>
 #include <rpc/key_prot.h>
+#ifdef YP
 #include <rpcsvc/yp_prot.h>
 #include <rpcsvc/ypclnt.h>
+#endif
 #include <string.h>
 #include <stdlib.h>
 #include "un-namespace.h"