8 Oct
2014
8 Oct
'14
12:05 p.m.
On 2014-10-08 at 14:00:05 +0200, Alan & Kim Zimmerman wrote: [...]
Should this go into Trac?
Fwiw, there is a version "7.9" you can select when writing a Trac ticket for the very purpose to file bugs against GHC HEAD. [...]
The file being compiled is
-------------------------------------------- {-# LANGUAGE DeriveTraversable #-}
module T9069 where
import Data.Foldable import Data.Traversable
data Trivial a = Trivial a deriving (Functor,Foldable,Traversable) ---------------------------------------------
There's two simple ways to workaround this; either a) add a 'import Prelude' after the two imports or b) remove the two imports The a) option has the benefit that it will still work with GHC 7.8.3