#14579: GeneralizedNewtypeDeriving produces ambiguously-kinded code -------------------------------------+------------------------------------- Reporter: RyanGlScott | Owner: (none) Type: bug | Status: closed Priority: normal | Milestone: 8.10.1 Component: Compiler (Type | Version: 8.2.2 checker) | Resolution: fixed | Keywords: deriving Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: GHC rejects | Test Case: valid program | deriving/should_compile/T14579{a,b} Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Phab:D4264, | Phab:D5229, Wiki Page: | https://gitlab.haskell.org/ghc/ghc/merge_requests/261 -------------------------------------+------------------------------------- Comment (by Ryan Scott <ryan.gl.scott@…>): In [changeset:"e88e083d62389d5c8d082a25395a3d933ab2f03b/ghc" e88e083/ghc]: {{{ #!CommitTicketReference repository="ghc" revision="e88e083d62389d5c8d082a25395a3d933ab2f03b" Fix #14579 by defining tyConAppNeedsKindSig, and using it }}} -- Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/14579#comment:28> GHC <http://www.haskell.org/ghc/> The Glasgow Haskell Compiler