I'm trying to backport the most recent version of openarena available in Debian to Etch. I already did it for version 0.7.0-1 with very few problems. But Sid's current version build-deps on debhelper (version not available in Etch). The problem lies that debhelper build-deps in man-db (again, version not in Etch) which also build-depends in debhelper. It is a circular build-dependency. What should I do?