[GHC] #8493: Can't compile happy + ghc with clang's CPP

[GHC]

#8493: Can't compile happy + ghc with clang's CPP
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        Reporter:  maxs                 |            Owner:
            Type:  bug                  |           Status:  new
        Priority:  highest              |        Milestone:  7.8.1
       Component:  libraries (other)    |          Version:  7.7
      Resolution:                       |         Keywords:  happy
Operating System:  MacOS X              |     Architecture:
 Type of failure:  Building GHC failed  |  Unknown/Multiple
       Test Case:                       |       Difficulty:  Unknown
        Blocking:                       |       Blocked By:
                                        |  Related Tickets:
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Comment (by hvr):

 Do I understand you right, that Clang's CPP converts spaces into tabs? :-/

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8493#comment:2>
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