Compiling projects with dependencies using GHC HEAD

Alexis King lexi.lambda at
Sat Oct 5 00:21:59 UTC 2019

> On Oct 1, 2019, at 18:56, Ben Gamari <ben at> wrote:
> Indeed it's just a function of this being a bit work in progress; we
> only started allowing multiple patch versions relatively recently and it
> looks like the constraint file generation hasn't been updated to account
> for this yet. I'll try to fix that tonight.

Thanks for the clarification. I just wanted to follow up and say that this was indeed enough to get me off the ground, and I was eventually able to successfully compile my project with GHC HEAD after updating a few other dependencies for MonadFail compatibility. Thanks again for your efforts!


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