[MacPorts] #49899: py-matplotlib: Can't set other graphics library variants than cairo

[MacPorts]

#49899: py-matplotlib: Can't set other graphics library variants than cairo
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  Reporter:  vsuorant@…     |      Owner:  sean@…
      Type:  enhancement    |     Status:  new
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.3.4
Resolution:                 |   Keywords:  haspatch
      Port:  py-matplotlib  |
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Comment (by vsuorant@…):

 Diff attached.

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Ticket URL: <https://trac.macports.org/ticket/49899#comment:2>
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