[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 erikd):

 Pretty certain that the problem is caused by a lack of SMP support for
 AArch64 in `mk/config.mk`.

 With the attached patch I was able to compile and install from git HEAD.
 Still need to do a little more testing to be sure.

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9673#comment:9>
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