diff -urp boost_1_54_0-orig/boost/xpressive/regex_algorithms.hpp boost_1_54_0/boost/xpressive/regex_algorithms.hpp
--- boost_1_54_0-orig/boost/xpressive/regex_algorithms.hpp	2013-07-23 00:47:50.804931313 +0200
+++ boost_1_54_0/boost/xpressive/regex_algorithms.hpp	2013-07-23 00:50:40.721961072 +0200
@@ -303,7 +303,6 @@ namespace detail
     )
     {
         typedef core_access<BidiIter> access;
-        typedef typename iterator_value<BidiIter>::type char_type;
         match_results<BidiIter> &what = *state.context_.results_ptr_;
         BOOST_ASSERT(0 != re.regex_id());