[MacPorts] #69291: gtk2 2.24.33_3: Fix "Source with depth 1 unsupported" warnings

[MacPorts]

#69291: gtk2 2.24.33_3: Fix "Source with depth 1 unsupported" warnings
---------------------+--------------------
 Reporter:  DanielO  |      Owner:  (none)
     Type:  defect   |     Status:  new
 Priority:  Normal   |  Milestone:
Component:  ports    |    Version:
 Keywords:           |       Port:  gtk2
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 I applied the patch here https://gitlab.gnome.org/GNOME/gtk/-/issues/580
 (I have also posted on this bug to try and get it committed upstream) and
 also modified gdk/quartz/gdkdrawable-quartz.c to remove the "Source with
 depth 1 unsupported" arm of the if and gtkwave seems to work fine.

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Ticket URL: <https://trac.macports.org/ticket/69291>
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