Changing to have Data.Functor.Class import Data.Functor.Identity reduces
#9664: Add identity functor to base -------------------------------------+------------------------------------- Reporter: hvr | Owner: ekmett Type: task | Status: patch Priority: normal | Milestone: 7.10.1 Component: Core | Version: Libraries | Keywords: Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Easy (less than 1 Unknown/Multiple | hour) Type of failure: | Blocked By: None/Unknown | Related Tickets: Test Case: | Blocking: | Differential Revisions: Phab:D313 | -------------------------------------+------------------------------------- Comment (by hvr): Replying to [comment:5 ross]: the ifdefs. Sure, I can easily change that (at the cost of some minor code duplication)
Ideally I'd like to avoid a release with conditional exports - is there any way to detect a GHC bootstrap build?
As for this I'm not sure how that helps here. Assuming we have a way of setting a Cabal flag when we're bootstrapping GHC (i.e. building stage 1), how would this improve the situation of having the `Data.Functor.Identity` module conditionally exposed (which now would be depending on that Cabal flag setting rather than predicating on `impl(ghc>=7.9)`)? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9664#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler