[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 ATL-Flaneur):

 Replying to [comment:15 johnjxw]:
 > Replying to [comment:8 jmroot]:
 > > The best workaround for now may be to not install the CLTs and only
 use Xcode.
 > Thanks, this workaround worked for me. Simply 'sudo rm -r
 /Library/Developer/CommandLineTools' and install Xcode App. Don't forget
 to clean failed ports you tried.

 Installing `db48` goes a little farther after I do this, but then stops
 when it can't find `sys/types.h`.

 See [70761]

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Ticket URL: <https://trac.macports.org/ticket/70750#comment:19>
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