diff -r 56cd8111b7f7 -r 41300fa6a67c src/gui/painting/qbackingstore_p.h
--- a/src/gui/painting/qbackingstore_p.h	Tue Jan 26 12:42:25 2010 +0200
+++ b/src/gui/painting/qbackingstore_p.h	Tue Feb 02 00:43:10 2010 +0200
@@ -146,9 +146,11 @@
     {
         if (widget && !widget->d_func()->inDirtyList && !widget->data->in_destructor) {
             QWidgetPrivate *widgetPrivate = widget->d_func();
+#ifndef QT_NO_GRAPHICSEFFECT
             if (widgetPrivate->graphicsEffect)
                 widgetPrivate->dirty = widgetPrivate->effectiveRectFor(rgn.boundingRect());
             else
+#endif //QT_NO_GRAPHICSEFFECT
                 widgetPrivate->dirty = rgn;
             dirtyWidgets.append(widget);
             widgetPrivate->inDirtyList = true;