[MacPorts] #60926: gtk2 +quartz -x11: error: implicit declaration of function 'gdk_quartz_pasteboard_type_to_atom_libgtk_only' is invalid in C99

[MacPorts]

#60926: gtk2 +quartz -x11: error: implicit declaration of function
'gdk_quartz_pasteboard_type_to_atom_libgtk_only' is invalid in C99
---------------------------+--------------------
  Reporter:  chicagotripp  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.6.3
Resolution:                |   Keywords:
      Port:  gtk2          |
---------------------------+--------------------
Changes (by chicagotripp):

 * Attachment "gtk2-main.log" added.

 Latest error log of following installation resolution suggestion.

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Ticket URL: <https://trac.macports.org/ticket/60926>
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