#14331: Overzealous free-floating kind check causes deriving clause to be rejected -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: 8.4.1 Component: Compiler (Type | Version: 8.2.1 checker) | Resolution: | Keywords: deriving Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: GHC rejects | Test Case: valid program | deriving/should_compile/T14331 Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by simonpj): Ryan is spot on in comment:56 (i.e. this is different to #11732), and also in comment:52 (i.e. `deriving( Cat k )` should fail if we really mean `deriving( Cat Type )`. Ryan this is in your patch, indeed right in the area you have in-flight work on. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/14331#comment:56 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler