From 94bf5949f5f9b1b5b271b570357531b081cbc75d Mon Sep 17 00:00:00 2001
From: Dmitry Marakasov <amdmi3@amdmi3.ru>
Date: Mon, 2 Feb 2015 00:08:30 +0300
Subject: [PATCH] Include unistd.h for usleep()

Fixes build on FreeBSD
---
 lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp b/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp
index d646665cd..6846e7912 100644
--- a/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp
+++ b/lib/irrlicht/source/Irrlicht/CIrrDeviceLinux.cpp
@@ -11,6 +11,7 @@ extern bool GLContextDebugBit;
 
 #include <stdio.h>
 #include <stdlib.h>
+#include <unistd.h>
 #include <sys/utsname.h>
 #include <time.h>
 #include "IEventReceiver.h"