On 23/03/14 00:45, Richard Eisenberg wrote:
Note that the removal of `classP` is only for HEAD -- it will *not* be merged in for 7.8, which would be way too big a change at this point.
Richard
On Mar 22, 2014, at 4:53 PM, Mateusz Kowalczyk wrote:
On 22/03/14 20:37, Johan Tibell wrote:
What's the right way to fix libraries (e.g. aeson) that break because classP was removed?
I have already patched lens, aeson, free, derive and binarydefer. You can look for commits with my e-mail in those projects for how it was done.
All you need to do now to get aeson to compile on 7.9 is to get Bryan to upload a new version with the relevant commit on Hackage.
-- Mateusz K. _______________________________________________ ghc-devs mailing list ghc-devs@haskell.org http://www.haskell.org/mailman/listinfo/ghc-devs
Right. I've been using __GLASGOW_HASKELL__ CPP tokens to bound this off so far. Is there a reason why the Template Haskell version wasn't bumped after this change? This makes it impossible to instead use tokens that work based on TH version rather than GHC version. As far as I can tell, what's shipping with 7.8 is TH 2.9.0.0 and the breaking change that's currently in 7.9 is also TH 2.9.0.0. -- Mateusz K.