[MacPorts] #68312: gcc13 C++ library linking error

[MacPorts]

#68312: gcc13 C++ library linking error
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  Reporter:  haberg-1  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.8.1
Resolution:            |   Keywords:
      Port:  gcc13     |
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Comment (by cjones051073):

 gcc13 itelf has no dependencies on any clang port. The dependency you see
 on clang-16 is only via the gcc13-libcxx which is a small sub-port
 designed to provide the libc++ header implementation to be used when you
 use g++ with the `-stdlib=libc++` option it now supports.

 The dependency is intentionally clang-16, not clang-17, as gcc does not
 support the very latest version in this case. Its the same reason why
 gcc12-libcxx uses clang-14, as thats the newest libc++ implementation that
 gcc12 supports.

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Ticket URL: <https://trac.macports.org/ticket/68312#comment:10>
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