[GHC] #16022: Hadrian appears to link against libffi unconditionally

[GHC]

#16022: Hadrian appears to link against libffi unconditionally
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        Reporter:  bgamari           |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  highest           |            Milestone:  8.8.1
       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):  Phab:D5427
       Wiki Page:                    |
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Comment (by bgamari):

 Here is a quick attempt at a patch.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/16022#comment:3>
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