--- src/mainwidget.h.orig	2008-06-08 22:01:28.000000000 +0200
+++ src/mainwidget.h	2008-06-08 22:01:50.000000000 +0200
@@ -24,6 +24,8 @@
 #include "MainWidgetBase.h"
 #include "pixelview.h"
 
+
+#include <cstdlib>
 #include <qstring.h>
 #include <qprocess.h>
 #include <qstringlist.h>