[GHC] #15780: ghc-8.4.4 failed to build on armv7 and aarch64

[GHC]

#15780: ghc-8.4.4 failed to build on armv7 and aarch64
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        Reporter:  juhpetersen          |                Owner:  (none)
            Type:  bug                  |               Status:  merge
        Priority:  high                 |            Milestone:  8.4.5
       Component:  Compiler             |              Version:  8.4.4
      Resolution:                       |             Keywords:
Operating System:  Linux                |         Architecture:  arm
 Type of failure:  Building GHC failed  |            Test Case:
      Blocked By:                       |             Blocking:
 Related Tickets:                       |  Differential Rev(s):
       Wiki Page:                       |
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Comment (by bgamari):

 Fixed in `ghc-8.6` with 2e23e1c7de01c92b038e55ce53d11bf9db993dd4.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15780#comment:7>
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