$NetBSD: patch-aa,v 1.3 2013/06/09 06:30:14 ryoon Exp $

--- src/options.cpp.orig	2013-06-09 06:21:13.000000000 +0000
+++ src/options.cpp
@@ -24,6 +24,7 @@ Permission is granted to anyone to use t
 #include<map>
 #include<algorithm>
 #include<string>
+#include <unistd.h>
 
 using std::string;