[Haskell-beginners] [Haskell-cafe] 2014 haskell cabal update hangs on mac

[Yitzchak Gale]

Daniel Gorín wrote:
> I had the same problem. It turned out to be that for some unknown reason I ended up with:
>
> /Library/Haskell/ghc-7.8.3-x86_64/bin/cabal -> cabal.wrap
> /Library/Haskell/ghc-7.8.3-x86_64/bin/cabal.real -> cabal.wrap
> /Library/Haskell/ghc-7.8.3-x86_64/bin/cabal.wrap
>
> where cabal.wrap is a shell script that checks if a new cabal.config
> should be created and then calls… cabal.real. Replacing cabal.real with a binary version of cabal solves it.
>
> I don’t know why this happened, I suspect that it might occur if you had ghc 7.8.2 already installed...

I believe this is a bug in the scripts activate-hs and uninstall-hs
provided by the Haskell Platform installer for Mac OS X.
I have reported it here:

https://github.com/haskell/haskell-platform/issues/147

-Yitz