Speculating, LTS Haskell 2.9 is designed to build with GHC 7.8.4 but
no such guarantees are made for GHC 7.10/HEAD.

On Thu, May 21, 2015 at 7:57 PM, Felipe Lessa <felipe.lessa@gmail.com> wrote:
> Very interesting.  I imagine most of those were not crafted to be fused.
>
> Out of curiosity, why 7.8 instead of 7.10 or HEAD?
>
> Cheers, :)
>
> --
> Felipe.
>
>

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