[MacPorts] #59467: ghc @8.6.5_1: Built ghc not working on Catalina

[MacPorts]

#59467: ghc @8.6.5_1: Built ghc not working on Catalina
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  Reporter:  abusse  |      Owner:  essandess
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.6.2
Resolution:          |   Keywords:  catalina
      Port:  ghc     |
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Comment (by mouse07410):

 IMHO, blacklisting Xcode-11 would be a very bad idea. That's the way Apple
 chose to proceed. I don't even know if XCode-10 would work on Catalina. We
 got to deal with it.

 Adding {{{-fstack-no-check}}} appears the best solution/workaround, at
 least for now.

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Ticket URL: <https://trac.macports.org/ticket/59467#comment:6>
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