#7854: Constrained method type accepted in Haskell 98 mode -------------------------------------+------------------------------------- Reporter: refold | Owner: thomie Type: bug | Status: closed Priority: normal | Milestone: 7.12.1 Component: Compiler (Type | Version: 7.6.3 checker) | Keywords: newcomer Resolution: fixed | Architecture: Operating System: Unknown/Multiple | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | module/mod39 Related Tickets: #10118, #10119 | Blocking: | Differential Revisions: Phab:D688 -------------------------------------+------------------------------------- Comment (by ekmett): FWIW- This started breaking some pre-existing code: https://hackage.haskell.org/package/semigroupoids-1.2.6/docs/src/Data- Functor-Alt.html#some Would having `FlexibleContexts` imply `ConstrainedClassMethods` as well also be too much to ask? Otherwise I'm going to have to start putting CPP around the set of directives for the module. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7854#comment:16 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler