[MacPorts] #68916: cmake fails to properly identify glib version

[MacPorts]

#68916: cmake fails to properly identify glib version
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  Reporter:  mouse07410  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  cmake       |
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Comment (by jmroot):

 Replying to [ticket:68916 mouse07410]:
 > It happens when trying to install ports {{{libqtxdg}}}, {{{rav1e}}}, and
 probably others. (Why it tries to rebuild those ports rather than pull the
 binaries from the buildbots is beyond my understanding.)

 Because they failed to build on the buildbot too, quite possibly for the
 same reason.

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Ticket URL: <https://trac.macports.org/ticket/68916#comment:1>
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