[MacPorts] #35996: xaos: build fails with libpng 1.5

[MacPorts]

#35996: xaos: build fails with libpng 1.5
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  Reporter:  michael.klein@…  |      Owner:  macports-tickets@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.1.2
Resolution:                   |   Keywords:  haspatch
      Port:  xaos             |
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Comment (by george@…):

 The patch worked for me!

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Ticket URL: <https://trac.macports.org/ticket/35996#comment:2>
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