--- ./serialization.hpp.orig	2009-08-28 12:15:28.000000000 +0400
+++ ./serialization.hpp	2009-08-28 12:15:34.000000000 +0400
@@ -88,7 +88,7 @@
 // load data required for construction and invoke constructor in place
 template<class Archive, class T>
 inline void load_construct_data(
-    Archive & ar, 
+    Archive &, 
     T * t, 
     const BOOST_PFTO unsigned int /*file_version*/
 ){