20090321182002: fix yi.hs recompilation failure when monads-fd are used by Sergei Trofimovich <slyfox@inbox.ru> Show/Hide diffTrying to use transformers in yi.hs leads to compilation failures,
when mtl library is installed (I have it with lambdabot, which uses mtl via mueval)
yi.hs:11:7:
Could not find module `Control.Monad.Writer':
it was found in multiple packages: monads-fd-0.0.0.0 mtl-1.1.0.2
Patch hides 'mtl' package#