[MacPorts] #65568: py39-pyqt5 fails to build on macOS 11.6.8

[MacPorts]

#65568: py39-pyqt5 fails to build on macOS 11.6.8
-------------------------+--------------------
  Reporter:  kgarrels    |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  py39-pyqt5  |
-------------------------+--------------------

Comment (by kgarrels):

 :info:build Generating the Makefiles...
 :info:build /opt/local/libexec/qt5/bin/qmake -recursive PyQt5.pro
 :info:build sip-build-3.9: '/opt/local/libexec/qt5/bin/qmake -recursive
 PyQt5.pro' failed returning 3
 :info:build Project ERROR: Could not resolve SDK Path for 'macosx11' using
 --show-sdk-path

-- 
Ticket URL: <https://trac.macports.org/ticket/65568#comment:1>
MacPorts <https://www.macports.org/>
Ports system for macOS