--- makedbm/makedbm.c.headers	2017-02-21 13:57:23.933293831 +0100
+++ makedbm/makedbm.c	2017-02-21 13:57:48.141286207 +0100
@@ -30,6 +30,7 @@
 #include <netdb.h>
 #include <rpc/rpc.h>
 #include <rpcsvc/yp_prot.h>
+#include "yp.h"
 
 #if defined (__NetBSD__) || (defined(__GLIBC__) && (__GLIBC__ == 2 && __GLIBC_MINOR__ == 0))
 /* <rpc/rpc.h> is missing the prototype */