23 May
2008
23 May
'08
12:01 p.m.
On Fri, May 23, 2008 at 5:11 PM, Thomas Hartman
I am assuming this used to work, but something changed, either in TH itself or switching from ghc6.6 to ghc6.8.
The "deriving" rules of 6.8 are more restrictive in some cases. However, the same result can be obtained in 6.8 byt using stand-alone deriving declarations: http://www.haskell.org/ghc/docs/latest/html/users_guide/deriving.html#stand-... I guess this can be the problem.