[MacPorts] #38005: wireshark doesn't build without libpng

[MacPorts]

#38005: wireshark doesn't build without libpng
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  Reporter:  jkh@…                       |      Owner:  opendarwin.org@…
      Type:  defect                      |     Status:  reopened
  Priority:  Normal                      |  Milestone:
 Component:  ports                       |    Version:  2.1.3
Resolution:                              |   Keywords:
      Port:  wireshark, wireshark-devel  |
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Comment (by ricci@…):

 First portion of resolving this in r128114 - added various ports that
 wireshark appears to be linking too (otool -L /opt/local/bin/wireshark,
 note that libpng is not in that output).  This will need to be done for
 the gtk3 and qt variants as well.  Other items installed by the wireshark
 port need to be checked for additional dependencies.

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Ticket URL: <https://trac.macports.org/ticket/38005#comment:12>
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