#8740: Deriving instance conditionally compiles -------------------------------------+------------------------------------- Reporter: thomaseding | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 7.6.3 checker) | Keywords: GADTs, Resolution: | deriving Operating System: Unknown/Multiple | Architecture: Type of failure: GHC rejects | Unknown/Multiple valid program | Test Case: Blocked By: | Blocking: Related Tickets: #8128 | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by bgamari): Indeed I was bitten by this just now. This is quite an unfortunate behavior. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8740#comment:5 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler