--- a/QTfrontend/hwform.cpp	Tue May 03 22:19:17 2016 +0200
+++ b/QTfrontend/hwform.cpp	Wed May 04 14:09:54 2016 +0300
@@ -103,7 +103,9 @@
 #include "AutoUpdater.h"
 
 #ifdef Q_OS_WIN
+#ifndef WINVER
 #define WINVER 0x0500
+#endif
 #include <windows.h>
 #else
 #include <unistd.h>