--- a/src/gui/painting/qpolygonclipper_p.h	Mon Jun 21 22:38:13 2010 +0100
+++ b/src/gui/painting/qpolygonclipper_p.h	Thu Jul 22 16:41:55 2010 +0100
@@ -62,7 +62,8 @@
 template <typename InType, typename OutType, typename CastType> class QPolygonClipper
 {
 public:
-    QPolygonClipper()
+    QPolygonClipper() :
+        buffer1(0), buffer2(0)
     {
         x1 = y1 = x2 = y2 = 0;
     }