Meanwhile, if you'd like to go back to a version that I'm pretty sure
will work (though I'm still compiling, etc to make sure), try
$ export CVS_RSH="ssh"
$ export CVSROOT="anoncvs%anoncvs.NetBSD.org@localhost:/cvsroot"
$ cd ~/net (if you're following the instructions in the wiki)
$ cvs checkout -D 20080420-UTC src
I actually did this in a different directory (~/net60) to insure that
there wasn't any junk hanging around from previous builds, etc. While
perhaps not as self-satisfying as fixing some bleeding edge NetBSD
stuff, you'll at least get to try it on your Slug.