BOOST_MPL_DEPENDENT_TEMPLATE_TYPEDEF

I've read on some archived post in the boost mailing list about BOOST_MPL_DEPENDENT_TEMPLATE_TYPEDEF, but seems like it is not in the 1.30 distribution anymore. Anyone knows what happened to it? I'm in need of this sort or workaround. Aleksey, are you there? :) Joaquín M López Muñoz Telefónica, Investigación y Desarrollo