[MacPorts] #70804: MPlayer @1.5.0_1 won't build on ARM64 macOS Sequoia

[MacPorts]

#70804: MPlayer @1.5.0_1 won't build on ARM64 macOS Sequoia
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  Reporter:  wdormann  |      Owner:  jeremyhu
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  MPlayer   |
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Comment (by ryandesign):

 Replying to [comment:3 kencu]:
 > Some weirdness that no doubt makes sense when you know exactly how the
 CFLAGS are affected by configure.cflags-append.

 It works exactly as you think it would: Any items given to `configure
 .cflags-append` are appended to the `configure.cflags` option. And during
 the configure phase, the entire contents of the `configure.cflags` option
 are put into the CFLAGS environment variable.

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Ticket URL: <https://trac.macports.org/ticket/70804#comment:4>
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