It might be helpful to have GHC automatically enable -fprint-explicit- kinds is an ambiguous type variable occurs in a kind position, such as in
#16374: Cannot deduce constraint from itself with poly-kinded type family -------------------------------------+------------------------------------- Reporter: roland | Owner: (none) Type: bug | Status: new Priority: normal | Milestone: Component: Compiler (Type | Version: 8.6.3 checker) | Keywords: Resolution: | TypeErrorMessages Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: None/Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Changes (by simonpj): * keywords: => TypeErrorMessages Comment: this program. I totally agree. Would anyone like to do this? There are a number of other [wiki:Status/TypeErrorMessages tickets about improving type error messages] -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/16374#comment:2 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler