2013/10/15 Bryan O'Sullivan
It's always good to fix this kind of thing early, as doing so makes it possible to find even sooner the real problems that will otherwise remain hidden by mickey mouse stuff like bad package dependencies. Finding problems before a release is cut is way cheaper (even for open source volunteers) than discovering them once the code is in the wild.
Agreed, but how are package maintainers supposed to find out problems early without much hassle? For my part, I am using Travis CI, but AFAICT it supports only GHC 7.4.1 (https://github.com/travis-ci/travis-ci/issues/882). There might be some cruel hacks like downloading some binary builds from somewhere etc., but this is not a real solution and takes ages. It would be very cool if Travis CI supported multiple GHC versions, including a version close to HEAD.