diff -up boost_1_57_0/boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp\~ boost_1_57_0/boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp

--- boost_1_57_0/boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp~	2014-10-13 12:21:40.000000000 +0200

+++ boost_1_57_0/boost/spirit/home/classic/core/non_terminal/impl/grammar.ipp	2015-01-20 13:25:50.069710766 +0100

@@ -282,12 +282,12 @@ struct grammar_definition

 #if !defined(BOOST_SPIRIT_SINGLE_GRAMMAR_INSTANCE)

         typedef impl::grammar_helper_base<GrammarT> helper_base_t;

         typedef grammar_helper_list<GrammarT> helper_list_t;

-        typedef typename helper_list_t::vector_t::reverse_iterator iterator_t;

         helper_list_t&  helpers =

         grammartract_helper_list::do_(self);

 # if defined(BOOST_INTEL_CXX_VERSION)

+        typedef typename helper_list_t::vector_t::reverse_iterator iterator_t;

         for (iterator_t i = helpers.rbegin(); i != helpers.rend(); ++i)

             (*i)->undefine(self);

 # else

Diff finished.  Tue Jan 20 13:25:53 2015