[MacPorts] #59926: doxygen is not distributable on 10.6-10.8

[MacPorts]

#59926: doxygen is not distributable on 10.6-10.8
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.6.2
Resolution:              |   Keywords:  snowleopard lion mountainlion
      Port:  doxygen     |
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Comment (by jmroot):

 I would guess it's the extra build dependency on git being added on older
 systems, not anything to do with libcxx.

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Ticket URL: <https://trac.macports.org/ticket/59926#comment:1>
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