[MacPorts] #64548: openal-soft fails to compile pre 10.10 with newer compilers (llvm-11+)

[MacPorts]

#64548: openal-soft fails to compile pre 10.10 with newer compilers (llvm-11+)
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  Reporter:  Gcenx        |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  openal-soft  |
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Comment (by kencu):

 Most are in legacysupport now.

 Just add that and you're usually good to go, unless there is some special
 case like re2.

 Throw in any others needed to there (if you find any).

 Nothing to do with the compiler, I think.

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Ticket URL: <https://trac.macports.org/ticket/64548#comment:1>
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