[MacPorts] #66527: ffmpeg @4.4.2_3 +gpl3 +nonfree +x11 does not build on macOS Monterey, Version 12.6, because of an "unknown load command 5"?

[MacPorts]

#66527: ffmpeg @4.4.2_3 +gpl3 +nonfree +x11 does not build on macOS Monterey,
Version 12.6, because of an "unknown load command 5"?
------------------------+----------------------------
  Reporter:  ballapete  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.8.0
Resolution:             |   Keywords:  monterey intel
      Port:  ffmpeg     |
------------------------+----------------------------

Comment (by ballapete):

 It builds when I leave `variant +gpl3` away.

 When I leave `variant +nonfree` away, then `ar` crashes again during the
 `configure phase`. The build does not finish, it fails as reported before.
 So `+gpl3` could be the culprit…

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Ticket URL: <https://trac.macports.org/ticket/66527#comment:1>
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