[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
-----------------------+----------------------------
  Reporter:  SaintBol  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  sequoia sonoma
      Port:            |
-----------------------+----------------------------

Comment (by Iritscen):

 xcode-select returns `/Applications/Xcode.app/Contents/Developer` for me.

 You might want to try uninstalling MacPorts per these instructions, then
 reinstalling:
 https://guide.macports.org/chunked/installing.macports.uninstalling.html

-- 
Ticket URL: <https://trac.macports.org/ticket/70750#comment:82>
MacPorts <https://www.macports.org/>
Ports system for macOS