I would also find this useful, in my case for the mit-scheme package. Please do it!
(Should the Debian BTS have an upvote system? It's already basically reddit, with each package a subreddit and each bug a post.) I also hate having to guess which dh_* commands do substitution and which don't. Please make them all do it except when there's a show stopper. $ grep Substitution: debian/control Scripts-Require-Substitution: dh_installalternatives $ cd ... $ grep Substitution: debian/control Scripts-Require-Substitution: *