[MacPorts] #44417: p5-opengl: fails on buildbot; _RegisterApplication(), FAILED TO establish the default connection to the WindowServer

[MacPorts]

#44417: p5-opengl: fails on buildbot; _RegisterApplication(), FAILED TO establish
the default connection to the WindowServer
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  Reporter:  mojca@…    |      Owner:  macports-tickets@…
      Type:  defect     |     Status:  new
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  p5-opengl  |
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Comment (by mojca@…):

 What I don't understand is why the build fails. Couldn't the installation
 proceed in such a way that one would avoid the failure?

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Ticket URL: <https://trac.macports.org/ticket/44417#comment:2>
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