[MacPorts] #55275: gtk3 +quartz: patches fail to apply

[MacPorts]

#55275: gtk3 +quartz: patches fail to apply
---------------------+---------------------
  Reporter:  skymoo  |      Owner:  dbevans
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:
      Port:  gtk3    |
---------------------+---------------------

Comment (by raimue):

 After you edited the patches in the files directory next to the Portfile,
 you need to `sudo port clean gtk3` before trying again to remove the
 previous build attempt.

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Ticket URL: <https://trac.macports.org/ticket/55275#comment:5>
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