$NetBSD: patch-ab,v 1.3 2013/10/24 11:31:10 jperkin Exp $

--- ssmtp.c.orig	2013-10-21 16:32:47.439696367 +0000
+++ ssmtp.c
@@ -13,6 +13,7 @@
 #define VERSION "2.64"
 #define _GNU_SOURCE
 
+#include <sys/types.h>
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <sys/param.h>