[MacPorts] #70750: MacOS Sequoia: C++ headers are not found with CLTs installed

[MacPorts]

#70750: MacOS Sequoia: C++ headers are not found with CLTs installed
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  Reporter:  SaintBol  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  sequoia
      Port:            |
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Comment (by kencu):

 So - the same fix I suggested worked for you too. That is two -- one more
 and we have a general fix.

 WHY it fixes the issue is not as yet clear, and we may never know.

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Ticket URL: <https://trac.macports.org/ticket/70750#comment:38>
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