tmhedberg/hsenv — pull request #44 by cosmo0920 (2014-08-25 16:23:19+00:00)
Title: Fix ghc-7.8's AMP warning

Prepare for ghc-7.10.
see also
http://www.haskell.org/haskellwiki/Functor-Applicative-Monad_Proposal#Missing_superclasses
for more information.

This PR tested on ghc-7.6.3 and ghc-7.8.3.