#12639: Inconsistent treatment of FlexibleInstances and MPTCs with standard vs. flexible deriving -------------------------------------+------------------------------------- Reporter: dfeuer | Owner: Type: feature request | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.1 checker) | Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by RyanGlScott): I have some opinions on both of these suggestions, but I'll refrain from posting them here. Before that, if you really want to see these changes make it into GHC, you should propose them as a post to the [https://mail.haskell.org/mailman/listinfo/ghc-devs GHC devs mailing list]. In particular, your second proposed item would cause a //lot// of code in the wild to break, so we need to discuss it more thoroughly to ensure it's a breakage we want to endorse. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/12639#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler