[MacPorts] #56004: audacity @2.2.0: error: unknown type name 'unique_ptr'

[MacPorts]

#56004: audacity @2.2.0: error: unknown type name 'unique_ptr'
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  Reporter:  ryandesign  |      Owner:  RJVB
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  audacity    |
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Comment (by RJVB):

 Probably, audacity has also been updated so I suppose that this ticket can
 be closed

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Ticket URL: <https://trac.macports.org/ticket/56004#comment:4>
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