[Boost-users] serialization with templates

I'm trying to serialize a template class with multiple template parameters. In the header file, I declare something like template class Node { private: std::array first; std::array second; } BOOST_CLASS_EXPORT_KEY(Node<1,1>) In a separate file, I would use the BOOST_CLASS_EXPORT_IMPLEMENT macro. However, when I'm using the BOOST_CLASS_EXPORT_KEY with a class that has more than one template parameter (as in the example above), I get an error message Error: macro "BOOST_CLASS_EXPORT_KEY" passed 2 arguments, but takes just 1 I'm using gcc 4.7.1 with boost 50 Any ideas, how to solve that problem? Jörg F.