[MacPorts] #50899: libpng 1.6.21 fails to install: failure while applying patches

[MacPorts]

#50899: libpng 1.6.21 fails to install: failure while applying patches
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  Reporter:  peter.waltman@…  |      Owner:  ryandesign@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.3.3
Resolution:                   |   Keywords:
      Port:  libpng           |
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Changes (by khindenburg@…):

 * owner:  macports-tickets@… => ryandesign@…
 * keywords:  libpng 1.6.21 =>
 * port:   => libpng
 * cc: peter.waltman@… (removed)
 * cc: khindenburg@… (added)


Comment:

 Are you sure this is a clean attempt?  'sudo port clean libpng' and then
 try again.

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Ticket URL: <https://trac.macports.org/ticket/50899#comment:2>
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