diff -up VTK/Common/vtkPythonUtil.cxx.gcc46 VTK/Common/vtkPythonUtil.cxx
--- VTK/Common/vtkPythonUtil.cxx.gcc46	2010-09-27 14:40:01.000000000 -0600
+++ VTK/Common/vtkPythonUtil.cxx	2011-02-08 11:15:39.596308982 -0700
@@ -31,6 +31,8 @@
 #include <vtkstd/map>
 #include <vtkstd/string>
 
+#include <cstddef>
+
 // Silent warning like
 // "dereferencing type-punned pointer will break strict-aliasing rules"
 // it happens because this kind of expression: (long *)&ptr
diff -up VTK/Utilities/vtkmetaio/metaUtils.cxx.gcc46 VTK/Utilities/vtkmetaio/metaUtils.cxx
--- VTK/Utilities/vtkmetaio/metaUtils.cxx.gcc46	2010-09-27 14:40:10.000000000 -0600
+++ VTK/Utilities/vtkmetaio/metaUtils.cxx	2011-02-08 10:43:25.265499011 -0700
@@ -34,6 +34,7 @@
 #include <arpa/inet.h>
 #endif
 
+#include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 #include <string>