--- smartcardpp-0.3.0/CardBase.cpp~	2011-10-12 20:24:16.000000000 +0200
+++ smartcardpp-0.3.0/CardBase.cpp	2014-01-22 20:15:41.235694879 +0100
@@ -15,6 +15,7 @@
 #include "CardBase.h"
 #include <algorithm>
 #include <time.h>
+#include <unistd.h>
 #include "helperMacro.h"
 #ifdef WIN32
 	#include <Windows.h>