[GHC] #9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output from subprocess

[GHC]

#9673: aarch64 7.8.4, 7.10, 7.11: lib/ghc/bin/ghc-pkg --version does not output
from subprocess
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        Reporter:  juhpetersen       |                   Owner:
            Type:  bug               |                  Status:  new
        Priority:  high              |               Milestone:
       Component:  Compiler          |                 Version:  7.10.1-rc1
      Resolution:                    |                Keywords:
Operating System:  Linux             |            Architecture:  aarch64
 Type of failure:  Installing GHC    |               Test Case:
  failed                             |                Blocking:
      Blocked By:                    |  Differential Revisions:
 Related Tickets:                    |
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Comment (by juhpetersen):

 This also affects building packages like haskell-platform and gtk2hs-
 buildtools,
 which have versioned build-tools dependencies (eg on alex and happy, etc)
 in their .cabal files, when the those build-tools are Haskell dynamically
 linked.

 (A workaround is to drop the version/bound from the .cabal file.)

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9673#comment:8>
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