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

[GHC]

#8713: Avoid libraries if unneeded (librt, libdl, libpthread)
-------------------------------+--------------------------------------
        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 crash  |            Test Case:
      Blocked By:              |             Blocking:
 Related Tickets:              |  Differential Rev(s):
       Wiki Page:              |
-------------------------------+--------------------------------------

Comment (by varosi):

 Is here something new? Those additional libraries are linked to GHC
 compiled executables as well. It's not only in GHCi. Currently on GHC
 7.10.2 (ARM) there is still linkage with those extra libraries.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8713#comment:18>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler