[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 ctreleaven@…):

 The other issue is version upgrades of dependencies.  Wireshark apparently
 directly links to libraries without listing those dependencies.  How can a
 maintainer of a dependency know to rev-bump wireshark when they commit a
 major upgrade to a library?  Answer:  list the dependency.

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Ticket URL: <https://trac.macports.org/ticket/38005#comment:10>
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