#9590: AMP breaks `haskell2010` package -------------------------------------+------------------------------------- Reporter: hvr | Owner: ekmett Type: bug | Status: new Priority: high | Milestone: 7.10.1 Component: Core | Version: 7.9 Libraries | Keywords: AMP Resolution: | Architecture: Unknown/Multiple Operating System: | Difficulty: Unknown Unknown/Multiple | Blocked By: Type of failure: GHC | Related Tickets: rejects valid program | Test Case: | Blocking: | Differential Revisions: | -------------------------------------+------------------------------------- Comment (by ekmett): There is no silver bullet here. The more I think on it, the more it strikes me that the best option is for us to just give up on these packages as a failed experiment. Neither hackage has ever really received any traction or picked up a coherent usage story. Every attempt folks (including me) have made to put forth them as something someone might use in practice has been rather rightly derided as unrealistic. We'd also get to clear `old-locale` and `old-time` out of the core. Any solution that involves bringing `Applicative` in could just as well be done outside of the GHC development process, so if a user base wanted to rally behind a `haskell98` / `haskell2010` package, it could be built out in `cabal` by anyone; we could put out a call for an active maintainer who wants to own it. It is only if we wanted to isolate `haskell2010` users further from the community by making them use their own `Monad`, etc. that we might have to keep `haskell2010` and `haskell98` as core packages -- but then only for compiler support for do sugar, and even that could probably be done with enough work. It doesn't strike me as a thing we're remotely ready to do though. It isn't clear it'd work sufficiently well for any appreciable number of users to at all justify the time and maintenance. Which brings us back to the option of just cutting these packages loose. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9590#comment:12 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler