Can you check if the actual binary package lists those dependencies, by fetching it separately and funning pkg_info on it? I have built it locally and also see nothing like this; just wget, gnup2, re2c and a bunch of perl modules. pkg_info -S reports 93 MB. Which is a big, but nothing like what you are seeing. (Basically, we need to first understand if this is a bug in the built package or a bug in pkgin).)