how to cabal-install with ghc-8.rc3 ?

[Johannes Waldmann]

On 11.04.2016 20:06, Ben Gamari wrote:

> [1] https://mail.haskell.org/pipermail/ghc-devs/2016-February/011409.html

Ah! I needed to do the above with ghc < 8.rc3 ,
then it created a cabal-install that works for 8.rc3 .

Thanks - J.W.