[MacPorts] #71151: xar @1.8.0.498: error: use of undeclared identifier 'XAR_CKSUM_SHA256', 'XAR_CKSUM_SHA512'

[MacPorts]

#71151: xar @1.8.0.498: error: use of undeclared identifier 'XAR_CKSUM_SHA256',
'XAR_CKSUM_SHA512'
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  Reporter:  0xbf00      |      Owner:  Schamschula
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.10.2
Resolution:              |   Keywords:  tiger leopard snowleopard lion
      Port:  xar         |  mountainlion mavericks
-------------------------+-------------------------------------------------

Comment (by Schamschula):

 That 'fix' no longer works for the current version of {{{xar}}}.

 As I attempted to revert older macOS versions to the previous version of
 {{{xar}}} I must have missed adding it back.

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Ticket URL: <https://trac.macports.org/ticket/71151#comment:2>
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