--- a/QTfrontend/HWApplication.cpp	Sun Mar 10 02:41:27 2013 +0100
+++ b/QTfrontend/HWApplication.cpp	Sat Mar 09 22:52:17 2013 -0500
@@ -21,6 +21,7 @@
 
 #include "hwform.h"
 #include "MessageDialog.h"
+#include "signal.h"
 
 
 #if !defined(Q_WS_WIN)