[Boost-users] [variant] make_recursive_variant and std::map

I would like to be able to use a recursive variant similar to the way it's shown in the documentation but using a std::map instead of std::vector. i.e. boost::make_recursive_variant< int,std::map

::type var;

Is there a way to do this? VC8.1 complains with: utility(54) : error C2079: 'std::pair<_Ty1,_Ty2>::second' uses undefined struct 'boost::recursive_variant_' with [ _Ty1=const float, _Ty2=boost::recursive_variant_ ] Regards, Richard.