[MacPorts] #61749: mpv @0.33.0: error: 'NSVisualEffectView' is only available on OS X 10.10 or newer

[MacPorts]

#61749: mpv @0.33.0: error: 'NSVisualEffectView' is only available on OS X 10.10 or
newer
------------------------+----------------------
 Reporter:  ryandesign  |      Owner:  Ionic
     Type:  defect      |     Status:  assigned
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.4
 Keywords:  sierra      |       Port:  mpv
------------------------+----------------------
 On macOS 10.12,
 [https://build.macports.org/builders/ports-10.12_x86_64-builder/builds/132525/steps
 /install-port/logs/stdio mpv fails to build]:

 {{{
 /opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_multimedia_mpv/mpv/work
 /mpv-player-mpv-d5ae9f7/video/out/mac/title_bar.swift:20:17: error:
 'NSVisualEffectView' is only available on OS X 10.10 or newer
 class TitleBar: NSVisualEffectView {
                 ^
 }}}

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Ticket URL: <https://trac.macports.org/ticket/61749>
MacPorts <https://www.macports.org/>
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