I tried building it, had problems with the auto tools, both libtoolize and autoconf kept hanging here. Not sure if my environment has broke or what. Version 2.8 wants a newer autoconf as well, I tried 2.8 after changing the requirements and 2.7.
As for DLL's there's various versions of libc going back to at least libc04 and various gcc*.dll's, looking I have a dozen EMX gcc*dll's for example. Maybe we should have a archive of all the ones that can be found?