[MacPorts] #64842: xar @1.8.0.483_3: error: use of undeclared identifier 'XAR_CKSUM_SHA256', 'XAR_CKSUM_SHA512'

[MacPorts]

#64842: xar @1.8.0.483_3: error: use of undeclared identifier 'XAR_CKSUM_SHA256',
'XAR_CKSUM_SHA512'
-------------------------+-------------------------------------------------
  Reporter:  ryandesign  |      Owner:  Schamschula
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.2
Resolution:              |   Keywords:  tiger leopard snowleopard lion
      Port:  xar         |  mountainlion mavericks
-------------------------+-------------------------------------------------

Comment (by jmroot):

 I think what is happening is that an external xar.h is being included,
 i.e. one from the SDK or MacPorts prefix, not the one in the worksrcdir.
 The one in the SDK only has those defines on the newer OS versions. This
 theory is supported by the fact that if I have the xar port already
 installed on the older OSes, the build succeeds.

-- 
Ticket URL: <https://trac.macports.org/ticket/64842#comment:2>
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