[GHC] #7602: Threaded RTS performing badly on recent OS X (10.8?)

[GHC]

#7602: Threaded RTS performing badly on recent OS X (10.8?)
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    Reporter:  simonmar        |       Owner:  thoughtpolice
        Type:  bug             |      Status:  new          
    Priority:  high            |   Milestone:  7.8.1        
   Component:  Runtime System  |     Version:  7.7          
    Keywords:                  |          Os:  MacOS X      
Architecture:  x86_64 (amd64)  |     Failure:  None/Unknown 
  Difficulty:  Unknown         |    Testcase:               
   Blockedby:  7678            |    Blocking:               
     Related:                  |  
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Comment(by carter):

 I'm going to see if I can reach out to someone I know at apple to see if
 the patched clang CPP stuff http://llvm.org/bugs/show_bug.cgi?id=16363 can
 be backported to the Xcode 5 clang.

 It'd be really a shame if we have to bundle up our own GCC/CLang or
 require end users to build their own before they can use GHC on mac!

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7602#comment:25>
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