Index: algorithm/string/detail/find_format_store.hpp
===================================================================
--- algorithm/string/detail/find_format_store.hpp	(revision 64998)
+++ algorithm/string/detail/find_format_store.hpp	(working copy)
@@ -71,7 +71,7 @@
             };
 
             template<typename InputT, typename FindResultT>
-            bool check_find_result(InputT& Input, FindResultT& FindResult)
+            bool check_find_result(InputT&, FindResultT& FindResult)
             {
                 typedef BOOST_STRING_TYPENAME 
                     range_const_iterator<InputT>::type input_iterator_type;