[MacPorts] #56242: jack @1.9.12: Build failure under High Sierra

[MacPorts]

#56242: jack @1.9.12: Build failure under High Sierra
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  Reporter:  Schamschula  |      Owner:  (none)
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  jack         |
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Comment (by mf2k):

 See also #56241 .

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Ticket URL: <https://trac.macports.org/ticket/56242#comment:2>
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