PSA for Cabal 2.2 new-* users regarding .ghc.environment files

Herbert Valerio Riedel hvriedel at
Sat May 12 22:10:56 UTC 2018

On Sat, May 12, 2018 at 10:41 PM, Gershom B <gershomb at> wrote:
> In particular, there is not good information provided by ghc about
> when these files are picked up and used.

Fwiw, there's already an overdue patch up for that at

If there's enough demand, this could in theory even make it into a
future GHC 8.4.3

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