Re: [jhc] building transformers library, irrefutable patterns

On Sat, 7 Aug 2010, Korcan Hussein wrote:

Hello I can build all of transformers (http://hackage.haskell.org/package/transformers) but only when excluding the files:

Control.Monad.Trans.RWS.Lazy, Control.Monad.Trans.State.Lazy, Control.Monad.Trans.Writer.Lazy

Which use irrefutable patterns, I could probably make this work without them but I just thought it was worth mentioning.

I remember I already complained about this issue and wrote a quick fix that replaces the ~ with let's.