[Haskell-cafe] downgrading GHC version on a Mac
dennis.raddle at gmail.com
Thu Apr 5 19:41:38 UTC 2018
Sorry, I don't follow what you're saying. What does 'stack-shell' do? How
do I make or choose a resolver?
And is this going to work with GHCJS? Seems simpler to go along with what
GHCJS expects, as there may be a number of auxiliary programs to GHCJS that
expect the same thing.
On Thu, Apr 5, 2018 at 11:13 AM, Matt <parsonsmatt at gmail.com> wrote:
> 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
> Matt Parsons
> On Thu, Apr 5, 2018 at 12:06 PM, Dennis Raddle <dennis.raddle at gmail.com>
>> 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?
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