[MacPorts] #68963: mpv @0.37.0 is broken on most of the systems

[MacPorts]

#68963: mpv @0.37.0 is broken on most of the systems
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  Reporter:              |      Owner:  i0ntempest
  barracuda156           |
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.8.1
Resolution:              |   Keywords:  bigsur, mojave, highsierra, sierra,
                         |  elcapitan, yosemite, mavericks, mountainlion,
      Port:  mpv         |  lion, snowleopard, leopard
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Comment (by i0ntempest):

 Seems that on every failing system except for macOS 11 it’s because of SDK
 version being too old. If you want to maintain support for older systems
 maybe it’s time to make a legacy port, as I’m unable to test and maintain
 stuff on old systems. But we do still have mplayer.

 Also… when’s the last time we heard from Ionic?

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Ticket URL: <https://trac.macports.org/ticket/68963#comment:2>
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