ndmitchell/shake — pull request #116 by trofi (2014-05-04 09:12:35+00:00)
Title: Development/Shake/Rules/Directory.hs: enable FlexibleContexts in implicit type sigs

> [36 of 41] Compiling Development.Shake.Rules.Directory (
Development/Shake/Rules/Directory.hs,
dist/dist-sandbox-48f3b19e/build/Development/Shake/Rules/Directory.o )
>
> Development/Shake/Rules/Directory.hs:205:1:
> Non type-variable argument
> in the constraint: Rule key GetDirectoryA
> (Use FlexibleContexts to permit this)
> In the context: (Rule key GetDirectoryA)
> While checking the inferred type for ‘getDirAction’

Fixes build failure on current ghc-HEAD due to:
http://permalink.gmane.org/gmane.comp.lang.haskell.glasgow.user/24612

Signed-off-by: Sergei Trofimovich