Building xemacs-packages from the top. Possible?

Hi, I'm trying to catch up on beta testing xemacs by picking the sources from CVS. Works fine. When it comes to the packages I fail to find any decent way to build them all from the top. The best I have found is to go around in leaf directories and "make" like this: "make STAGING=/... bindist" Now this is not what you want to do after a cvs update. I would want to be able to build it all from the top. I have really tried to look for documentation both in xemacs and xemacs-packages module but failed to find anything. Since this is beta test stuff I don't know what to expect either but to be frank I was expecting something a bit more polished and I'm sure there is. So how to do it? Yours -- %% Mats