#8528: Preprocessor issues building GHC HEAD on Mavericks ----------------------------------------+---------------------------------- Reporter: guest | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.7 Resolution: | Keywords: clang Operating System: MacOS X | Architecture: x86_64 (amd64) Type of failure: Building GHC failed | Difficulty: Unknown Test Case: | Blocked By: Blocking: | Related Tickets: #8480 ----------------------------------------+---------------------------------- Comment (by nkpart): Aha! I have a fix. Although I'm still pretty confused about where the bug really is. Initially, I installed the latest versions of alex (3.1.2) and happy (1.19.1) available on hackage. These were updated in the last couple of days. Rolling back alex to 3.1.0 seems to resolve it. I the clean rebuild process I used was: {{{ # Change the alex link git clean -fdx perl boot ./configure make }}} -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/8528#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler