Ah, that sounds like a good way to handle it. Thanks for the quick response! Ryan S. On Fri, Apr 15, 2016 at 11:42 AM, Iavor Diatchki wrote:

I left the "instanceD" functions as is, and added a new function `instanceWithOverlapD` to avoid that problem:

instanceD :: CxtQ -> TypeQ -> [DecQ] -> DecQ instanceWithOverlapD :: Maybe Overlap -> CxtQ -> TypeQ -> [DecQ] -> DecQ

The patch is here btw:

https://phabricator.haskell.org/D2118

On Fri, Apr 15, 2016 at 7:14 AM, Ryan Scott wrote:

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I've done a quick grep for InstanceD over the stackage-nightly-subset of Hackage:

Wouldn't we also need to check for the instanceD function from Language.Haskell.TH.Lib as well? I know several of my packages use that exclusively over the InstanceD constructor, and I imagine others do as well.

Ryan S. _______________________________________________ Libraries mailing list Libraries@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/libraries