[GHC] #3103: Compiling base with cabal fails.

[GHC]

#3103: Compiling base with cabal fails.
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        Reporter:  Lemmih            |            Owner:
            Type:  bug               |           Status:  new
        Priority:  high              |        Milestone:  7.8.1
       Component:  Compiler          |          Version:  6.10.1
      Resolution:                    |         Keywords:
Operating System:  Unknown/Multiple  |     Architecture:  Unknown/Multiple
 Type of failure:  None/Unknown      |       Difficulty:  Unknown
       Test Case:  T3103             |       Blocked By:
        Blocking:                    |  Related Tickets:
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Comment (by nh2):

 I managed to compile base 4.7 with cabal 1.17.

 I got

 {{{
 cabal: thread blocked indefinitely in an MVar operation
 }}}

 probably in the preprocessing step, but apart from that, it seems to work
 (see attached output file).

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/3103#comment:17>
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