=== boost/date_time/format_date_parser.hpp
==================================================================
--- boost/date_time/format_date_parser.hpp	(revision 2101)
+++ boost/date_time/format_date_parser.hpp	(local)
@@ -87,7 +87,7 @@
 inline
 int_type
 var_string_to_int(std::istreambuf_iterator<charT>& itr,
-                  std::istreambuf_iterator<charT>& stream_end,
+                  std::istreambuf_iterator<charT>& /* stream_end */,
                   unsigned int max_length)
 {
   typedef std::basic_string<charT>  string_type;
=== boost/date_time/time_facet.hpp
==================================================================
--- boost/date_time/time_facet.hpp	(revision 2101)
+++ boost/date_time/time_facet.hpp	(local)
@@ -197,7 +197,7 @@
 #endif
 
     //! sets default formats for ptime, local_date_time, and time_duration
-    explicit time_facet(::size_t a_ref = 0) 
+    explicit time_facet(::size_t /* a_ref */ = 0) 
       //: base_type(standard_format),
       : base_type(default_time_format), 
         m_time_duration_format(string_type(duration_sign_negative_only) + default_time_duration_format)
=== boost/range/as_literal.hpp
==================================================================
--- boost/range/as_literal.hpp	(revision 2101)
+++ boost/range/as_literal.hpp	(local)
@@ -66,7 +66,7 @@
         }
         
         template< class T >
-        inline long is_char_ptr( T r )
+        inline long is_char_ptr( T /* r */ )
         {
             return 0L;
         }