[MacPorts] #70326: gcc13, gcc14 build failures on arm64

[MacPorts]

#70326: gcc13, gcc14 build failures on arm64
---------------------------+---------------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.9.3
Resolution:                |   Keywords:  arm64, sonoma
      Port:  gcc13 gcc14   |
---------------------------+---------------------------

Comment (by cjones051073):

 Gcc already declares a build conflict against the libunwind headers, but
 perhaps this is no longer enough

 https://github.com/macports/macports-
 ports/blob/ee065f7787c786aa421c184690d6e365b6bec58b/lang/gcc14/Portfile#L332

 ?

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Ticket URL: <https://trac.macports.org/ticket/70326#comment:15>
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