Ticket #3977: nvp_const_ref.patch

boost/serialization/nvp.hpp

@@ -98 +98 @@
     return nvp<T>(name, t);
 }
 
+template<class T>
+inline
+#ifndef BOOST_NO_FUNCTION_TEMPLATE_ORDERING
+const
+#endif
+nvp<const T> make_nvp(const char * name, const T & t){
+    return nvp<const T>(name, t);
+}
+
 // to maintain efficiency and portability, we want to assign
 // specific serialization traits to all instances of this wrappers.
 // we can't strait forward method below as it depends upon