[GHC] #15956: Linker error building `runghc`

[GHC]

#15956: Linker error building `runghc`
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        Reporter:  harpocrates       |                Owner:  (none)
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.6.3
       Component:  Build System      |              Version:  8.6.2
  (Hadrian)                          |
      Resolution:                    |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Comment (by harpocrates):

 Oops, I never reported back! The offending commit is
 561748cb507505bd5b7bd76bdc57796d896b62a2.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15956#comment:2>
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