Index: libs/serialization/src/basic_serializer_map.cpp
===================================================================
--- libs/serialization/src/basic_serializer_map.cpp	(revision 84235)
+++ libs/serialization/src/basic_serializer_map.cpp	(working copy)
@@ -45,6 +45,7 @@
     // attempt to insert serializer into it's map
     const std::pair<map_type::iterator, bool> result =
         m_map.insert(bs);
+    (void)result; // Silence warning
     // the following is commented out - rather than being just
     // deleted as a reminder not to try this.
 
Index: libs/serialization/src/basic_iarchive.cpp
===================================================================
--- libs/serialization/src/basic_iarchive.cpp	(revision 84235)
+++ libs/serialization/src/basic_iarchive.cpp	(working copy)
@@ -456,6 +456,7 @@
         int i = cid;
         cobject_id_vector[i].bpis_ptr = bpis_ptr;
         BOOST_ASSERT(new_cid == cid);
+        (void)new_cid; // Avoid warning when NDEBUG is on
     }
     int i = cid;
     cobject_id & co = cobject_id_vector[i];