Hi! Was checking last year the status of several of the dpkg arch definitions, and whether they are in use and/or useful, and stumbled over the kfreebsd-any ones.
The ports were dropped from Debian, and they never went back to Debian ports. The ports were declared dead, and there's been no further development that I'm aware of, and while that saddens me, I think it should be fine to remove their definitions from dpkg? (If the port ever grows interest again we could always re-add them! :) Thanks, Guillem

