[MacPorts] #54518: gtk3 @3.22.17_0 +quartz+universal: fails to build on Yosemite (10.10.5)

[MacPorts]

#54518: gtk3 @3.22.17_0 +quartz+universal: fails to build on Yosemite (10.10.5)
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  Reporter:  mopihopi  |      Owner:  dbevans
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  yosemite
      Port:  gtk3      |
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Comment (by kencu):

 Hmm. I didn't get any errors like that on 10.8, running webkit2-gtk with
 the MiniBrowser, but I didn't try the gtk3 demos.

 Looks like a missing icon? Wonder why is it trying to load something from
 `/org/gtk/...`

 Doesn't look too hard to debug, I hope.

 Don't forget, AFAIK this is only with +quartz variant. Switch to +x11 and
 it all goes away.

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Ticket URL: <https://trac.macports.org/ticket/54518#comment:9>
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