[MacPorts] #63440: py36-cffi 1.14.6: build fails

[MacPorts]

#63440: py36-cffi 1.14.6: build fails
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  Reporter:  odysseus9672  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:
      Port:  py36-cffi     |
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Comment (by odysseus9672):

 Forgot to add: this is on OS X 10.15.7 with Xcode and command line tools
 11.5.

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Ticket URL: <https://trac.macports.org/ticket/63440#comment:1>
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