--- a/QTfrontend/ui/mouseoverfilter.cpp	Fri May 23 13:37:34 2014 +0400
+++ b/QTfrontend/ui/mouseoverfilter.cpp	Wed May 28 09:05:36 2014 +0400
@@ -22,6 +22,8 @@
 
 bool MouseOverFilter::eventFilter( QObject *dist, QEvent *event )
 {
+    AbstractPage* abstractpage;
+
     if (event->type() == QEvent::Enter)
     {
         QWidget * widget = dynamic_cast<QWidget*>(dist);