[MacPorts] #62348: wxWidgets broken on macOS BigSur due to XCode 12 issue

[MacPorts]

#62348: wxWidgets broken on macOS BigSur due to XCode 12 issue
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  Reporter:  MSoegtropIMC   |      Owner:  mojca
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:
Resolution:                 |   Keywords:  bigsur
      Port:  wxwidgets-3.0  |
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Comment (by MSoegtropIMC):

 If the commands posted by Ken don't fix it, you need to update XCode.

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Ticket URL: <https://trac.macports.org/ticket/62348#comment:6>
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