Index: boost/mpi/detail/mpi_datatype_oarchive.hpp
===================================================================
--- boost/mpi/detail/mpi_datatype_oarchive.hpp
+++ boost/mpi/detail/mpi_datatype_oarchive.hpp.new
@@ -19,4 +19,5 @@
 #include <boost/mpi/datatype_fwd.hpp>
 #include <boost/mpl/assert.hpp>
+#include <boost/static_assert.hpp>
 #include <boost/integer.hpp>
 #include <boost/archive/detail/register_archive.hpp>
@@ -62,5 +63,5 @@
       // select the right sized integer for the enum
       typedef typename boost::uint_t<8*sizeof(T)>::least int_type;
-      BOOST_MPL_ASSERT((sizeof(T)==sizeof(int_type)));
+      BOOST_STATIC_ASSERT((sizeof(T)==sizeof(int_type)));
       this->save(*reinterpret_cast<int_type const*>(&t));
     }