diff -up boost_1_54_0/boost/unordered/detail/unique.hpp\~ boost_1_54_0/boost/unordered/detail/unique.hpp
--- boost_1_54_0/boost/unordered/detail/unique.hpp~	2012-12-05 23:06:57.000000000 +0100
+++ boost_1_54_0/boost/unordered/detail/unique.hpp	2013-07-22 23:54:29.222516306 +0200
@@ -334,8 +334,6 @@ namespace boost { namespace unordered { 
 
         value_type& operator[](key_type const& k)
         {
-            typedef typename value_type::second_type mapped_type;
-    
             std::size_t key_hash = this->hash(k);
             iterator pos = this->find_node(key_hash, k);
     

Diff finished.  Mon Jul 22 23:55:15 2013