#7965: The 'impossible' happened! -------------------------------+-------------------------------------------- Reporter: adit | Owner: Type: bug | Status: new Priority: normal | Component: Compiler Version: 7.4.1 | Keywords: Os: MacOS X | Architecture: x86_64 (amd64) Failure: Compile-time crash | Blockedby: Blocking: | Related: -------------------------------+-------------------------------------------- I'm working on a haskell package (code here: https://github.com/egonschiele/rdioh) and when I try to build it I get this error consistently: In order, the following will be installed: rdioh-0.1.1 (reinstall) changes: hspec-1.4.4 added Warning: Note that reinstalls are always dangerous. Continuing anyway... Configuring rdioh-0.1.1... Building rdioh-0.1.1... Preprocessing executable 'rdioh' for rdioh-0.1.1... [2 of 5] Compiling Rdioh.Models ( src/Rdioh/Models.hs, dist/build/rdioh/rdioh-tmp/Rdioh/Models.o ) ghc: panic! (the 'impossible' happened) (GHC version 7.4.1 for x86_64-apple-darwin): nameModule show{tv a1rK} Please report this as a GHC bug: http://www.haskell.org/ghc/reportabug Failed to install rdioh-0.1.1 cabal: Error: some packages failed to install: rdioh-0.1.1 failed during the building phase. The exception was: ExitFailure 1 make: *** [all] Error 1 I'm on OSX v 10.8.2. Darwin Kernel Version 12.2.1: Thu Oct 18 12:13:47 PDT 2012; root:xnu-2050.20.9~1/RELEASE_X86_64 x86_64 -- Ticket URL: http://hackage.haskell.org/trac/ghc/ticket/7965 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler