Hi Philip, > Any news on this? Was the branch created? I can't seem to find it on https://git.savannah.gnu.org, and the changes haven't made it into master, as far as I can tell. sorry, I’ve been busy rebasing my new python-build-system (PEP 517) on top of master. I created the branch wip-haskell and pushed zimoun’s v2 – I hope that’s alright with you Philip? (I didn’t check the patches thoroughly, just tried to build attoparsec.) Cheers, Lars