[MacPorts] #61750: cmake port installation failure - Big Sur AArch64 (M1)

[MacPorts]

#61750: cmake port installation failure - Big Sur AArch64 (M1)
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  Reporter:  raw-bin  |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  High     |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:           |
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Comment (by raw-bin):

 I wonder whether I need to use the latest beta version of Xcode command
 line tools ? At present I have v 12 stable. Trying v12.3 beta now just in
 case.

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Ticket URL: <https://trac.macports.org/ticket/61750#comment:2>
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