[MacPorts] #59660: py36-isce2 fails to rebuild with Xcode 11.2

[MacPorts]

#59660: py36-isce2 fails to rebuild with Xcode 11.2
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  Reporter:  EJFielding  |      Owner:  piyushrpt
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  py-isce2    |
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Comment (by EJFielding):

 I did not do the migration because I did not upgrade the OS. We never had
 to do a full reinstall of all ports for an Xcode upgrade before.

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Ticket URL: <https://trac.macports.org/ticket/59660#comment:7>
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