#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 simonpj): Well, bugs (and this was a bug) are like that! It's not so hard, and it is truthful, to add `ConstrainedClassMethods` to those libraries. But if the CLC advises, we can also make `FlexibleContexts` imply it. Remember this is not in 7.10 so libraries have time to adapt. Simon -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7854#comment:20 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler