Warning when deriving Foldable/Traversable using -Wall

Nicolas Trangez nicolas at incubaid.com
Wed Oct 8 12:05:55 UTC 2014

On Wed, 2014-10-08 at 14:00 +0200, Alan & Kim Zimmerman wrote:
> The current HEAD gives a spurious unused declaration when deriving
> Typable/Traversable

Why would this be spurious, given `Foldable` and `Traversable` are now
exported by `Prelude`, so those imports are in fact not necessary?


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