[MacPorts] #63714: python39 @3.9.7: build failure on Monterey/M1

[MacPorts]

#63714: python39 @3.9.7: build failure on Monterey/M1
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  Reporter:  tglsfdc   |      Owner:  jmroot
      Type:  defect    |     Status:  accepted
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.7.1
Resolution:            |   Keywords:  monterey
      Port:  python39  |
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Comment (by jmroot):

 Replying to [comment:6 tglsfdc]:
 > Replying to [comment:5 ryandesign]:
 > > There is (or was) a macOS bug that prevents macOS from automatically
 updating the command line tools so you have to do so manually.
 >
 > Oh, hmm ... what's the process for doing that then?

 ProblemHotlist#reinstall-clt

 AFAIK, you don't need a Developer ID to access the CLT package download,
 just an Apple ID. But the alternative method using Software Update doesn't
 require you to log in at all.

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Ticket URL: <https://trac.macports.org/ticket/63714#comment:10>
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