--- src/helpers/System.cpp.old	2012-07-03 17:16:43.550896817 +0200
+++ src/helpers/System.cpp	2012-07-03 17:16:50.188902695 +0200
@@ -24,6 +24,7 @@
 #include "Log.h"
 #include "VExcept.h"
 #include <sstream>
+#include <unistd.h>
 
 std::vector<std::string>* System::getDisplayModes(int windowed) {
     std::vector<std::string>* modes = new std::vector<std::string>;