[MacPorts] #61586: gimp +quartz does not build under Big Sur

[MacPorts]

#61586: gimp +quartz does not build under Big Sur
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  Reporter:  MaurizioLoreti  |      Owner:  (none)
      Type:  defect          |     Status:  new
  Priority:  Normal          |  Milestone:
 Component:  ports           |    Version:
Resolution:                  |   Keywords:
      Port:  gimp            |
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Comment (by MaddTheSane):

 The `_cairo_surface_release_source_image` is an issue with Cairo on Big
 Sur. It is a [https://gitlab.freedesktop.org/cairo/cairo/-/issues/420
 known issue], affecting both arm64 and x86_64.

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Ticket URL: <https://trac.macports.org/ticket/61586#comment:10>
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