[MacPorts] #60116: mpv @0.31.0 fails to build on mavericks

[MacPorts]

#60116: mpv @0.31.0 fails to build on mavericks
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 Reporter:  tehcog  |      Owner:  (none)
     Type:  defect  |     Status:  new
 Priority:  Normal  |  Milestone:
Component:  ports   |    Version:  2.6.2
 Keywords:          |       Port:  mpv
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 please see attached main.log

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Ticket URL: <https://trac.macports.org/ticket/60116>
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