$OpenBSD: patch-src_preferences_cpp,v 1.3 2012/04/07 08:32:32 kirby Exp $
--- src/preferences.cpp.orig	Sat Jan  7 06:35:17 2012
+++ src/preferences.cpp	Mon Feb 13 17:17:39 2012
@@ -34,6 +34,8 @@
 
 #include <sys/stat.h> // for setting the permissions of the preferences file
 
+#include <unistd.h>
+
 static lg::log_domain log_filesystem("filesystem");
 #define ERR_FS LOG_STREAM(err, log_filesystem)
 
