[MacPorts] #58540: xorg-libxcb @1.13.1 does not build on High Sierra (macOS 10.13.6) because building documentation never finds an end

[MacPorts]

#58540: xorg-libxcb @1.13.1 does not build on High Sierra (macOS 10.13.6) because
building documentation never finds an end
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  Reporter:  ballapete    |      Owner:  jeremyhu
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.5.4
Resolution:               |   Keywords:  highsierra
      Port:  xorg-libxcb  |
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Comment (by ballapete):

 I finally tried to build with `Python 2.7` – the same error when it comes
 to building the docs, endlessly doing something silly. I am attaching the
 corresponding log file.

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Ticket URL: <https://trac.macports.org/ticket/58540#comment:8>
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