[MacPorts] #48233: py34-cairo seems to expect x11 cairo, not quartz

[MacPorts]

#48233: py34-cairo seems to expect x11 cairo, not quartz
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  Reporter:  jens.troeger@…  |      Owner:  sean@…
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:  2.3.3
Resolution:                  |   Keywords:
      Port:  py-cairo        |
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Comment (by ryandesign@…):

 Replying to [comment:13 jeremyhu@…]:
 > No, I mean that installing the cairo port should always install the
 Quartz rendering backend and optionally install the X11 rendering backend.

 That is already the case since r128925; see #44414.

 > py-cairo should similarly always support the Quartz backend and
 optionally support the X11 backend if cairo supports it.
 >
 > My understanding from talking to others was that py-cairo was agnostic
 to the rendering backend, but it seems that isn't the case.

 py-cairo already does optionally support x11 if cairo supports it, but the
 check for whether cairo supports x11 appears to be happening at build
 time, whereas it seems like it would be better for it to happen at
 runtime.

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Ticket URL: <https://trac.macports.org/ticket/48233#comment:14>
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