I do not have a system GHC installed. For tools that need it (eg cabal), I
have an alias `stack-shell` that does `stack exec --no-ghc-package-path
zsh`. You can use that, with a given resolver (that corresponds to the GHC
version you want) to have a shell open with the GHC you want to use
available "globally." I find that this keeps things clean and easy to
understand.
Matt Parsons
On Thu, Apr 5, 2018 at 12:06 PM, Dennis Raddle
I'm on a MacBook Pro. I'm not very familiar with software installation.
Up until now I've been using Stack for GHC work, and it seems to take care of having the right version of GHC.
Now I'm going to use GHCJS, and I need to have a system GHC installed (I believe). At some point in the past I installed the Haskell Platform for Mac, and I have GHC 8.01. But I want to downgrade that to 7.10 so that I don't have to worry about compatibility with GHCJS.
How do I go about uninstalling GHC 8 and installing 7.10 in its place? Can I use Homebrew?
D
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