[MacPorts] #64204: R: 4.1.2 fails to build on macOS 12.0.1

[MacPorts]

#64204: R: 4.1.2 fails to build on macOS 12.0.1
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  Reporter:  colmconn  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:            |
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Changes (by colmconn):

 * Attachment "main.log" added.

 R 4.1.2 build log

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Ticket URL: <https://trac.macports.org/ticket/64204>
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