[MacPorts] #60267: mpv-0.31 fails to build on Catalina -- failed to import bridging header

[MacPorts]

#60267: mpv-0.31 fails to build on Catalina -- failed to import bridging header
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  Reporter:  Liontooth  |      Owner:  Ionic
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:
Resolution:             |   Keywords:
      Port:  mpv        |
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Comment (by i0ntempest):

 Thanks, adding `use_xcode yes` finally fixed the build. Should this be
 applied globally?

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Ticket URL: <https://trac.macports.org/ticket/60267#comment:6>
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