[MacPorts] #66352: clang-15: fatal error: '*.h' file not found

[MacPorts]

#66352: clang-15: fatal error: '*.h' file not found
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  Reporter:  judaew    |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.8.0
Resolution:            |   Keywords:  ventura, x86_64
      Port:  clang-15  |
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Comment (by judaew):

 I found this comment about this issue:

 https://github.com/AcademySoftwareFoundation/OpenShadingLanguage/issues/1055#issuecomment-581920327

 After adding the `CPLUS_INCLUDE_PATH` environment variable, everything
 works correctly. Maybe you could add `notes` about `CPLUS_INCLUDE_PATH`
 var (in case someone else finds this problem).

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Ticket URL: <https://trac.macports.org/ticket/66352#comment:5>
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