package 'categories' fails with HEAD

Gabor Greif ggreif at
Wed Nov 5 10:26:29 UTC 2014

Hi all,

some time ago I filed:

against the 'categories' library. But I cannot see what is wrong with
the code. It also builds with older GHCs (though I should re-check
with 7.8.3).

So I conjecture this is a HEAD problem in GHC HEAD. It seems weird.

Any ideas what this could be?



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