[MacPorts] #62921: Symbol not found in pytorch on macOS 11

[MacPorts]

#62921: Symbol not found in pytorch on macOS 11
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  Reporter:  essandess     |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.4
Resolution:                |   Keywords:
      Port:  py39-pytorch  |
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Comment (by essandess):

 Source builds are also failing. Log attached.

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Ticket URL: <https://trac.macports.org/ticket/62921#comment:1>
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