$OpenBSD: patch-src_directory_h,v 1.1 2018/10/28 07:48:25 bentley Exp $

Index: src/directory.h
--- src/directory.h.orig
+++ src/directory.h
@@ -31,6 +31,7 @@
 #include <string>
 #include <ctime>
 #include <stdexcept>
+#include <cstddef>
 
 // #include <boost.h>  Contents of boost.h
 
