[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
------------------------------+--------------------------
  Reporter:  peter.waltman@…  |      Owner:  ryandesign@…
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.3.3
Resolution:                   |   Keywords:
      Port:  libpng           |
------------------------------+--------------------------

Comment (by peter.waltman@…):

 One more question: how can I mark this ticket closed? If I can't, to
 whomever controls that, please feel free to close it. Cleaning the
 previous package install fixed the issue immediately.

-- 
Ticket URL: <https://trac.macports.org/ticket/50899#comment:5>
MacPorts <https://www.macports.org/>
Ports system for OS X