[MacPorts] #54878: ghc at 7.8.3_5+universal: Failed to build on macOS 10.13

[MacPorts]

#54878: ghc at 7.8.3_5+universal: Failed to build on macOS 10.13
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  Reporter:  vovinacci  |      Owner:  neverpanic
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.99
Resolution:             |   Keywords:  highsierra
      Port:  ghc        |
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Comment (by kencu):

 Pretty sure this is 64 bit Intel only at this point in history. Why do you
 needit universal?

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Ticket URL: <https://trac.macports.org/ticket/54878#comment:2>
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