[MacPorts] #73754: pandoc @3.9.0.2_0: fails to build if gcc is installed

[MacPorts]

#73754: pandoc @3.9.0.2_0: fails to build if gcc is installed
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  Reporter:  mark4o  |      Owner:  judaew
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.12.4
Resolution:          |   Keywords:
      Port:  pandoc  |
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Comment (by pmetzger):

 I have a fix at last. It also required fixing ghc.

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Ticket URL: <https://trac.macports.org/ticket/73754#comment:5>
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