#9160: Panic: Template variable unbound in rewrite rule ----------------------------------+--------------------------------------- Reporter: mietek | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.8.2 Keywords: | Operating System: MacOS X Architecture: x86_64 (amd64) | Type of failure: Compile-time crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | ----------------------------------+--------------------------------------- Installing `singletons-1.0` with GHC 7.8.2 on OS X 10.9.2 fails: {{{ ghc: panic! (the 'impossible' happened) (GHC version 7.8.2 for x86_64-apple-darwin): Template variable unbound in rewrite rule }}} Full build log attached. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9160 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler