20 Feb
2008
20 Feb
'08
11:51 p.m.
On Wed, 20 Feb 2008, John Meacham wrote:
On Thu, Feb 21, 2008 at 05:39:27AM +0100, Henning Thielemann wrote:
What is the intended way to make a library using FunctorM/fmapM compatible to both GHC-6.4 and GHC-6.8 ?
Just a note, DrIFT 2.2.3 or later (http://repetae.net/computer/haskell/DrIFT/) supports deriving both the Foldable and Traversable classes for arbitrary types, this should alleviate the migration issues somewhat.
I like a solution like Traversable for GHC-6.4 or FunctorM for GHC-6.8 (as packages on Hackage).