[Boost-users] [variant] declaring recursive variants

Hello, Actually, I don't want a recursive variant in the normal recursive_wrapper sense. What I want is this: typedef std::list<a> alist; typedef std::list<b> blist; typedef boost::variant var; typedef std::vector<var> value; typedef std::map message; typedef std::map config; But of course I can't do that because I have no idea how to forward declare config. I suspect that there is no way to do this, but I am not in the same league as everybody else when it comes to this stuff. Any suggestions? Thank you, Jerry