[MacPorts] #61714: Port @py27-zmq-20.0.0_0: build failed

[MacPorts]

#61714: Port @py27-zmq-20.0.0_0: build failed
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  Reporter:  Tommaso93  |      Owner:  (none)
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.4
Resolution:             |   Keywords:
      Port:  py27-zmq   |
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Comment (by snarkhunter):

 It fails on Catalina too, at the same point.

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Ticket URL: <https://trac.macports.org/ticket/61714#comment:1>
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