--- a/demos/affine/xform.cpp	Tue Jan 26 12:42:25 2010 +0200
+++ b/demos/affine/xform.cpp	Tue Feb 02 00:43:10 2010 +0200
@@ -68,8 +68,8 @@
     pts->setBoundingRect(QRectF(0, 0, 500, 500));
     ctrlPoints << QPointF(250, 250) << QPointF(350, 250);
     pts->setPoints(ctrlPoints);
-    connect(pts, SIGNAL(pointsChanged(const QPolygonF&)),
-            this, SLOT(updateCtrlPoints(const QPolygonF &)));
+    connect(pts, SIGNAL(pointsChanged(QPolygonF)),
+            this, SLOT(updateCtrlPoints(QPolygonF)));
     setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 }