[MacPorts] #61976: mame: update to 0.227

[MacPorts]

#61976: mame: update to 0.227
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  Reporter:  mascguy  |      Owner:  mascguy
      Type:  update   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  mame     |
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Comment (by mascguy):

 Thankfully the Mame folks don't appear to be using newer MacOS API calls,
 they've simply moved on to C++ 2017. So if we can use a newer libc++, that
 would be great!

 How is that done?

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Ticket URL: <https://trac.macports.org/ticket/61976#comment:4>
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