FunctorM.fmapM vs. Traversable with GHC-6.4 and GHC-6.8

Henning Thielemann lemming at henning-thielemann.de
Wed Feb 20 23:39:27 EST 2008


What is the intended way to make a library using FunctorM/fmapM compatible
to both GHC-6.4 and GHC-6.8 ?


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