Changes for MPL v2

[SVN r13504]

include/boost/python/object/class_converters.hpp

@@ -7,7 +7,7 @@
 # define CLASS_CONVERTERS_DWA2002119_HPP
 
 # include <boost/python/object/class_wrapper.hpp>
-# include <boost/mpl/for_each.hpp>
+# include <boost/mpl/fold.hpp>
 # include <boost/python/reference.hpp>
 # include <boost/python/converter/registry.hpp>
 # include <boost/python/object/find_instance.hpp>
@@ -44,8 +44,7 @@ struct do_nothing
 template <class Derived>
 struct register_base_of
 {
-    // Ignored is needed because mpl::for_each is still actually
-    // accumulate. We're not using any state so it just sits there.
+    // We're not using any state so we supply Ingored argument
     template <class Ignored, class Base>
     struct apply
     {
@@ -60,7 +59,7 @@ struct register_base_of
             register_conversion<Derived,Base>(false);
 
             // Register the down-cast, if appropriate.
-            mpl::select_type<
+            mpl::select_if_c<
                 is_polymorphic<Base>::value
                 , register_downcast<Base,Derived>
                 , do_nothing
@@ -85,7 +84,7 @@ inline void register_class_from_python(Derived* = 0, Bases* = 0)
     register_dynamic_id<Derived>();
 
     // register each base in the sequence
-    mpl::for_each<Bases, void, register_base_of<Derived> >::execute();
+    mpl::fold<Bases, void, register_base_of<Derived> >::execute();
 }
 
 }}} // namespace boost::python::object