[Hs-Generics] Compile issue with multirec TH

Dominique Devriese dominique.devriese at cs.kuleuven.be
Tue Jun 22 13:19:02 EDT 2010


José,

2010/6/22 José Pedro Magalhães <jpm at cs.uu.nl>:
> It is a known problem---multirec does not work with GHC 6.12. You have to
> use 6.10.4.
>
> An alternative is not to use the Template Haskell stuff and provide explicit
> type signatures expanding the PF type family in the from/to functions...

Thanks for the information. Providing my own PF type families is
indeed what I've been doing succesfully. Is this a fundamental
problem, or is there hope for a solution in a future version?

Thanks
Dominique


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