[Haskell-cafe] GHC 6.12 on OS X 10.5

[Tom Tobin]

On Mon, Dec 21, 2009 at 4:05 PM, Antoine Latter <aslatter at gmail.com> wrote:
> This one I can help with. You need to modify the .cabal file for
> HJScript slightly. To do this:
>
>  cabal unpack HJScript
>  cd HJScript-0.4.5
>  ${EDITOR} HJScript.cabal
>
> And then add 'GADTs' to the 'Extensions:' list.

That fixed it (after then running "cabal instal" in the unpacked dir).