===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/auth2-chall.c,v
retrieving revision 1.51
retrieving revision 1.52
diff -u -r1.51 -r1.52
--- src/usr.bin/ssh/auth2-chall.c	2019/09/06 04:53:27	1.51
+++ src/usr.bin/ssh/auth2-chall.c	2019/11/13 04:47:52	1.52
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth2-chall.c,v 1.51 2019/09/06 04:53:27 djm Exp $ */
+/* $OpenBSD: auth2-chall.c,v 1.52 2019/11/13 04:47:52 deraadt Exp $ */
 /*
  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
  * Copyright (c) 2001 Per Allansson.  All rights reserved.
@@ -29,6 +29,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <stdarg.h>
 
 #include "xmalloc.h"
 #include "ssh2.h"