[GHC] #8528: Preprocessor issues building GHC HEAD on Mavericks

[GHC]

#8528: Preprocessor issues building GHC HEAD on Mavericks
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        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
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Comment (by nkpart):

 I've sent a small PR against alex on github
 (https://github.com/simonmar/alex/pull/37), and a similar change for happy
 (https://github.com/simonmar/happy/pull/12).

 With those 2 patches, you can build/install alex and happy with clang and
 then use those tools with GHC-over-gcc.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8528#comment:12>
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