[boost] [fusion] noncopyable types in sequences?

Hello, In trying to use noncopyable types in a fusion vector I realized I can't - GCC 4.0.1 complained about, e.g.: fusion::vector<boost::signal<void()> > test; // error: 'boost::noncopyable_::noncopyable::noncopyable(const boost::noncopyable_::noncopyable&)' is private A related question was asked before by Michael Marcin but I didn't find a response: http://lists.boost.org/Archives/boost/2007/10/128868.php Is there a way to make vector (or any other sequence container) hold noncopyable types, or do I need to implement a noncopyable_vector? Thanks for any suggestions! Stjepan