[MacPorts] #60880: py38-matplotlib 10.11 build failure

[MacPorts]

#60880: py38-matplotlib 10.11 build failure
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  Reporter:  dyne2meter     |      Owner:  (none)
      Type:  defect         |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.6.3
Resolution:                 |   Keywords:
      Port:  py-matplotlib  |
----------------------------+--------------------

Comment (by chrstphrchvz):

 [https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/118037/steps
 /install-port/logs/stdio The same error] is observed on the 10.8-10.11
 builders.

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Ticket URL: <https://trac.macports.org/ticket/60880#comment:1>
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