[MacPorts] #47578: mkvtoolnix: upgrade to 7.8.0

[MacPorts]

#47578: mkvtoolnix: upgrade to 7.8.0
-------------------------+--------------------------
  Reporter:  mojca@…     |      Owner:  ryandesign@…
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  haspatch
      Port:  mkvtoolnix  |
-------------------------+--------------------------
Changes (by ryandesign@…):

 * status:  new => assigned
 * keywords:   => haspatch
 * owner:  macports-tickets@… => ryandesign@…


Comment:

 Yes, these symbols were added in libmatroska 1.4.1; we had 1.4.0 in
 MacPorts. Updated libmatroska to 1.4.1 in r135607. Reported this issue to
 the developers of mkvtoolnix in
 https://github.com/mbunkus/mkvtoolnix/issues/1177. I will still update
 libmatroska to 1.4.2 before updating mkvtoolnix, but libmatroska 1.4.2
 uses a different build system so I need to investigate that first.

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Ticket URL: <https://trac.macports.org/ticket/47578#comment:5>
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