[MacPorts] #63643: py39-pyqt5 @5.15.5_0 build failure

[MacPorts]

#63643: py39-pyqt5 @5.15.5_0 build failure
-------------------------+---------------------------
  Reporter:  khorton     |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:  bigsur x86_64
      Port:  py39-pyqt5  |
-------------------------+---------------------------
Changes (by khorton):

 * Attachment "main.log" added.

 build log

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Ticket URL: <https://trac.macports.org/ticket/63643>
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