diff -up Box2D-2.0.2b2/Box2D/Box2D_pickling.i.orig Box2D-2.0.2b2/Box2D/Box2D_pickling.i
--- Box2D-2.0.2b2/Box2D/Box2D_pickling.i.orig	2011-03-30 11:44:38.000000000 +0200
+++ Box2D-2.0.2b2/Box2D/Box2D_pickling.i	2015-02-26 14:45:04.310231200 +0100
@@ -542,9 +542,11 @@ def _pickle_get_joint(self, world=None):
 
 %}
 
-# These were originally set programmatically, which is perhaps cleaner,
-# but this will set every class up properly without any unnecessary code
-# execution
+/*
+ * These were originally set programmatically, which is perhaps cleaner,
+ * but this will set every class up properly without any unnecessary code
+ * execution
+ */
 
 %extend b2World {
  %pythoncode %{