Just a quick follow-up to Building 0.19 from source?, since I missed the ten-day window to reply in-line:
You might have a look at the
nix expression for
elm. It declares all the proper versions of
ghc, the various Haskell libs, etc. needed for a successful build.
If you’re interested in building ancillary elm tools with
nix as well, see Elm tooling for Nix and NixOS users.