fixes

[SVN r12146]

src/converter/unwrapper.cpp

@@ -0,0 +1,24 @@
+// Copyright David Abrahams 2001. Permission to copy, use,
+// modify, sell and distribute this software is granted provided this
+// copyright notice appears in all copies. This software is provided
+// "as is" without express or implied warranty, and with no claim as
+// to its suitability for any purpose.
+#include <boost/python/converter/unwrapper.hpp>
+#include <boost/python/converter/registry.hpp>
+#include <boost/type_traits/same_traits.hpp>
+
+namespace boost { namespace python { namespace converter { 
+
+unwrapper_base::unwrapper_base(type_id_t key)
+    : body(key)
+{
+    registry::insert(*this);
+}
+
+unwrapper_base::~unwrapper_base()
+{
+    if (can_unregister())
+        registry::remove(*this);
+}
+
+}}} // namespace boost::python::converter