===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/auth2-chall.c,v
retrieving revision 1.50
retrieving revision 1.51
diff -u -r1.50 -r1.51
--- src/usr.bin/ssh/auth2-chall.c	2018/07/11 18:55:11	1.50
+++ src/usr.bin/ssh/auth2-chall.c	2019/09/06 04:53:27	1.51
@@ -1,4 +1,4 @@
-/* $OpenBSD: auth2-chall.c,v 1.50 2018/07/11 18:55:11 markus Exp $ */
+/* $OpenBSD: auth2-chall.c,v 1.51 2019/09/06 04:53:27 djm Exp $ */
 /*
  * Copyright (c) 2001 Markus Friedl.  All rights reserved.
  * Copyright (c) 2001 Per Allansson.  All rights reserved.
@@ -26,6 +26,7 @@
 
 #include <sys/types.h>
 
+#include <stdlib.h>
 #include <stdio.h>
 #include <string.h>