#8882: internal error (deriving generic / cyclical imports?) -------------------------------+---------------------------------- Reporter: mf825 | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.6.3 Resolution: | Keywords: panic Operating System: Linux | Architecture: x86_64 (amd64) Type of failure: GHCi crash | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: -------------------------------+---------------------------------- Comment (by mf825): @thoughpolice: you are right, WDF got shrunk away at some point, but the fact that you are getting this far without the bug showing proves that it is gone in 7.8 (assuming this is what you used to run crash.sh). great! @simon: ghc-7.6.3 does not understand -fno-warn-amp, and i could not find it in the manual either. if you still think it is relevant, could you give me another hint? @monoidal: yes, that seems likely. in my case, the -XDerivingGeneric is in module Default, and the hs-boot file belongs to module Universes. but when i disable DerivingGeneric in Default, the problem goes away. i think i'll try to get 7.8 running now. Ii am ok with closing this issue. thanks everybody for the great help! -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8882#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler