[GHC] #8713: Avoid libraries if unneeded (librt, libdl, libpthread)

[GHC]

#8713: Avoid libraries if unneeded (librt, libdl, libpthread)
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        Reporter:  ip1981   |            Owner:
            Type:  bug      |           Status:  patch
        Priority:  normal   |        Milestone:
       Component:  GHCi     |          Version:  7.6.3
      Resolution:           |         Keywords:
Operating System:  Other    |     Architecture:  x86_64 (amd64)
 Type of failure:  GHCi     |       Difficulty:  Moderate (less than a day)
  crash                     |       Blocked By:
       Test Case:           |  Related Tickets:
        Blocking:           |
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Changes (by thomie):

 * status:  new => patch


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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8713#comment:4>
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