[GHC] #11455: GHC-8.0.0.20160109 runs into "Bad interface file: ... Something is amiss"

[GHC]

#11455: GHC-8.0.0.20160109 runs into "Bad interface file: ... Something is amiss"
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        Reporter:  Lemming           |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Package system    |              Version:  8.0.1-rc1
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by mpickering):

 Which version of cabal are you using? Sounds like you might need to build
 from the github repository.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/11455#comment:1>
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