diff -r 93b982ccede2 -r 5daf16870df6 src/gui/kernel/qwidget.h
--- a/src/gui/kernel/qwidget.h	Mon Jun 21 22:38:13 2010 +0100
+++ b/src/gui/kernel/qwidget.h	Thu Jul 22 16:41:55 2010 +0100
@@ -773,6 +773,7 @@
 #ifdef Q_WS_X11
     friend void qt_net_update_user_time(QWidget *tlw, unsigned long timestamp);
     friend void qt_net_remove_user_time(QWidget *tlw);
+    friend void qt_set_winid_on_widget(QWidget*, Qt::HANDLE);
 #endif
 
     friend Q_GUI_EXPORT QWidgetData *qt_qwidget_data(QWidget *widget);