[GHC] #10099: cabal install broken with ghc 7.10.1-rc2

[GHC]

#10099: cabal install broken with ghc 7.10.1-rc2
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        Reporter:  trommler          |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  highest           |               Milestone:  7.10.1
       Component:  Package system    |                 Version:  7.10.1-rc2
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
 Type of failure:  Runtime crash     |  Unknown/Multiple
      Blocked By:                    |               Test Case:
 Related Tickets:                    |                Blocking:
                                     |  Differential Revisions:
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Comment (by jstolarek):

 I've run into the same problem this week but I assumed that I must have
 done something wrong with my installation and didn't have time to
 investigate further.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/10099#comment:1>
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