>The docs I've read seem to >suggest that gcc is kind of "glued onto the side of" Plan 9 proper.
it's kind of unglued off the side of Plan 9 proper: gcc came unstuck (in more ways than one). i'm afraid it's harder to port (or do i mean compile?) than it ever was. and then there's glibc, which you'll certainly also need ... something must be done! (and that's certainly a lot of something.)