From: Robert Luberda <robert@debian.org>
Date: Mon, 25 Aug 2014 21:41:11 +0200
Subject: 26 Add missing include

Add #include <bsd/err.h> to fix implicit declaration of
function 'warnc' warning.
---
 lex.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lex.c b/lex.c
index 2ad3ea3..c4fbad1 100644
--- a/lex.c
+++ b/lex.c
@@ -34,6 +34,7 @@
 #include <errno.h>
 #include <fcntl.h>
 #include "extern.h"
+#include <bsd/err.h>
 
 /*
  * Mail -- a mail program