[GHC] #8102: Parallel build of HEAD consistently fails

[GHC]

#8102: Parallel build of HEAD consistently fails
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        Reporter:  edsko             |            Owner:
            Type:  bug               |           Status:  new
        Priority:  normal            |        Milestone:
       Component:  Build System      |          Version:  7.7
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by kazu-yamamoto):

 mkGmpDerivedConstants-parallel.patch fixes this problem in my Mac. Please
 verify.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8102#comment:3>
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