[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:  new
        Priority:  normal      |               Milestone:
       Component:  GHCi        |                 Version:  7.6.3
      Resolution:              |                Keywords:
Operating System:  Other       |            Architecture:  x86_64 (amd64)
 Type of failure:  GHCi crash  |               Test Case:
      Blocked By:              |                Blocking:
 Related Tickets:              |  Differential Revisions:
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Changes (by thomie):

 * status:  upstream => new


Comment:

 The patch to unix has been merged.

 I second Karel's suggestion of not introducing any new #ifdefs in the
 Haskell code. See also [wiki:Commentary/PlatformNaming].

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8713#comment:16>
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