#11172: Turning on optimisations produces Impossible case alternative -------------------------------------+------------------------------------- Reporter: nh2 | Owner: Type: bug | Status: new Priority: normal | Milestone: 8.0.1 Component: Compiler | Version: 7.10.2 Resolution: | Keywords: Operating System: Unknown/Multiple | Architecture: | Unknown/Multiple Type of failure: Runtime crash | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Rev(s): Wiki Page: | -------------------------------------+------------------------------------- Comment (by nh2): Ah, you'd have to use `cabal` with `--allow-newer`, both for the first invocation in my repro until cabal fails installing aeson, and then for the invocation and for aeson as well. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/11172#comment:6 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler