[MacPorts] #69471: gtk2 @2.24.33_3+quartz fails to build: incompatible function pointer types

[MacPorts]

#69471: gtk2 @2.24.33_3+quartz fails to build: incompatible function pointer types
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  Reporter:  DrLex0     |      Owner:  mascguy
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.9.1
Resolution:             |   Keywords:
      Port:  gtk2 gimp  |
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Comment (by kencu):

 would you be able to point to the branch where you are finding the newer
 commits to gtk2?

 macports is building the latest release, and I'm having trouble spotting
 the development branch of gtk2 on the gnome website anywhere to look at
 what they have done since the release..

 I also patched gtk2 with some slightly different patches than what you
 describe, to the same end result. (And I see the m4 nuisance as well).

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Ticket URL: <https://trac.macports.org/ticket/69471#comment:8>
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