#10389: ghc: panic! (the 'impossible' happened) when building "bitmap-0.0.2" -------------------------------------+------------------------------------- Reporter: yairchu | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.10.1 Keywords: | Operating System: MacOS X Architecture: | Type of failure: Compile-time Unknown/Multiple | crash Test Case: | Blocked By: Blocking: | Related Tickets: Differential Revisions: | -------------------------------------+------------------------------------- Output from "cabal install bitmap": {{{ Resolving dependencies... Configuring bitmap-0.0.2... Building bitmap-0.0.2... Failed to install bitmap-0.0.2 Build log ( /Users/yairchu/.cabal/logs/bitmap-0.0.2.log ): Configuring bitmap-0.0.2... Building bitmap-0.0.2... Preprocessing library bitmap-0.0.2... [ 1 of 10] Compiling Data.Bitmap.Internal ( Data/Bitmap/Internal.hs, dist/build/Data/Bitmap/Internal.o ) [ 2 of 10] Compiling Data.Bitmap.Base ( Data/Bitmap/Base.hs, dist/build/Data/Bitmap/Base.o ) [ 3 of 10] Compiling Data.Bitmap.IO ( Data/Bitmap/IO.hs, dist/build/Data/Bitmap/IO.o ) Data/Bitmap/IO.hs:1248:1: Warning: SPECIALISE pragma for non-overloaded function ‘myPlusPtr’ Data/Bitmap/IO.hs:1249:1: Warning: SPECIALISE pragma for non-overloaded function ‘myPlusPtr’ ghc: panic! (the 'impossible' happened) (GHC version 7.10.1 for x86_64-apple-darwin): Template variable unbound in rewrite rule $fPixelComponentFloat3_X2Rc [$fPixelComponentFloat3_X2Rc] [$fPixelComponentFloat3_X2Rc] [] [] Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug cabal: Error: some packages failed to install: bitmap-0.0.2 failed during the building phase. The exception was: ExitFailure 1 }}} Reporting this here as suggested by the error message.. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10389 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler