[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:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:
      Port:  py36-isce2  |
-------------------------+--------------------
Changes (by EJFielding):

 * Attachment "py36-isce2-main.log" added.

 main log showing failure to build after fixing gcc7

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