[jhc] building transformers library, irrefutable patterns

Henning Thielemann jhc at henning-thielemann.de
Sat Aug 7 10:08:05 EDT 2010

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.

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