http://www.virtualbox.org/ticket/6715
--- VirtualBox-3.2.0_OSE/src/VBox/VMM/VMMAll/PGMAllGst.h.ark	2010-05-19 14:01:59.307802654 +0200
+++ VirtualBox-3.2.0_OSE/src/VBox/VMM/VMMAll/PGMAllGst.h	2010-05-19 14:07:31.690925013 +0200
@@ -28,6 +28,11 @@ RT_C_DECLS_END
 
 
 
+#if defined(__GNUC__) && __GNUC__ == 4 && __GNUC_MINOR__ == 5
+    // Work around gcc 4.5 producing warnings when a X86PDPE is constructed
+    // while the Makefiles use -Werror
+#pragma GCC diagnostic warning "-Wuninitialized"
+#endif
 /**
  * Gets effective Guest OS page information.
  *