[MacPorts] #70750: C++ headers are not found after updating to CLTs version 16.0

[MacPorts]

#70750: C++ headers are not found after updating to CLTs version 16.0
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  Reporter:  SaintBol  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  sequoia sonoma
      Port:            |
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Comment (by linuxgemini):

 Heya,

 Replying to [comment:60 ldionne]:
 > It would be really helpful if someone who can reproduce the problem
 locally could share the contents of their
 `/Library/Developer/CommandLineTools/usr/include/c++` directory. It seems
 like not everyone has the same content and I have been unable to reproduce
 this issue when installing the CLTs from a clean install, making it a bit
 challenging to investigate.

 I uploaded a text tree output of that folder to
 https://paste.debian.net/plainh/c9fd06d1.

 The setup is:

 macOS 14.7 23H124 arm64

 Xcode 16.0 16A242d

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Ticket URL: <https://trac.macports.org/ticket/70750#comment:68>
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