From ec329c596fdf52f5ce099489cd38dbda9c6213fe Mon Sep 17 00:00:00 2001
From: Daniel O'Connor <darius@dons.net.au>
Date: Mon, 7 Jun 2021 10:16:50 +0930
Subject: [PATCH] Fix compilation under FreeBSD

---
 utilities.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/utilities.cpp b/utilities.cpp
index cd093dd..8770480 100644
--- a/utilities.cpp
+++ b/utilities.cpp
@@ -5,6 +5,7 @@
 #include <stdio.h>
 #include <string.h>
 #include <strings.h>
+#include <unistd.h>
 #include <memory>
 
 #include "ioparport.h"