#9147: defining data type in GHC results in ghc: panic! (the 'impossible' happened) -------------------------------+------------------------------------ Reporter: tdp93422 | Owner: Type: bug | Status: closed Priority: normal | Milestone: Component: GHCi | Version: 7.4.1 Resolution: duplicate | Keywords: Operating System: Linux | Architecture: Unknown/Multiple Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------+------------------------------------ Changes (by rwbarton): * status: new => closed * resolution: => duplicate Comment: Duplicate of #5961, fixed since GHC 7.6. `deriving (read, show, eq, ord)` should be `deriving (Read, Show, Eq, Ord)`. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9147#comment:1 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler