[MacPorts] #51514: xorg-libxcb fails to build if python3 is port selected

[MacPorts]

#51514: xorg-libxcb fails to build if python3 is port selected
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  Reporter:  mf2k@…       |      Owner:  jeremyhu@…
      Type:  defect       |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.3.99
Resolution:  wontfix      |   Keywords:
      Port:  xorg-libxcb  |
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Comment (by jeremyhu@…):

 #51572 filed to warn users when they try to do this.

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Ticket URL: <https://trac.macports.org/ticket/51514#comment:17>
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