[MacPorts] #64214: Julia @1.6.2 fails to install due to a macOS-version-based configuration error on macOS 12.x

[MacPorts]

#64214: Julia @1.6.2 fails to install due to a macOS-version-based configuration
error on macOS 12.x
-------------------------+--------------------
  Reporter:  hnarayanan  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.1
Resolution:              |   Keywords:
      Port:              |
-------------------------+--------------------
Changes (by hnarayanan):

 * Attachment "main.log" added.

 Julia port install error log

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Ticket URL: <https://trac.macports.org/ticket/64214>
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