[Debian-haskell] Build dependencies too tight?

Hi,

I’ve just uploaded a new build of xmonad to make sure the build-dependencies match the ones in the archive.

I’m wondering if this strictness (setting the build-dependencies on haskell modules exactly to the version currently installed) is really needed. The policy only mentions it is used to keep the architectures in sync, but I don’t really understand the problem this is fixing. I’m also wondering if we can’t keep the archives in sync using binNMUs.

I would think it saves us some work this way. It’s also nicer to our users who try to re-build a certain package on their local machine, without having the very exact build-dependencies installed.

I’m probably missing some point here, but I’d like to learn about it.

Thanks, Joachim