[GHC] #7889: Build Error (master branch)

[GHC]

#7889: Build Error (master branch)
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        Reporter:  cg31              |            Owner:
            Type:  bug               |           Status:  new
        Priority:  high              |        Milestone:  7.8.1
       Component:  GHCi              |          Version:  7.6.3
      Resolution:                    |         Keywords:  gmp
Operating System:  Unknown/Multiple  |     Architecture:  x86_64 (amd64)
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:                    |       Blocked By:  3658
        Blocking:                    |  Related Tickets:
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Comment (by Rothiph):

 I also run into this error when building on Windows 7 64-bit within a
 MinGW/MSYS environment.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/7889#comment:5>
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