/* PSPP - a program for statistical analysis.
- Copyright (C) 1997-9, 2000, 2010, 2011, 2013 Free Software Foundation, Inc.
+ Copyright (C) 1997-9, 2000, 2010, 2011, 2013, 2014 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include <stdbool.h>
#include <stddef.h>
+#include <unistd.h>
#include "data/identifier.h"
#include "data/variable.h"