[MacPorts] #59069: portindex uses wrong cxx_stdlib for darwin 10, 11, 12?

[MacPorts]

#59069: portindex uses wrong cxx_stdlib for darwin 10,11,12?
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  Reporter:  ryandesign  |      Owner:  (none)
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  base        |    Version:  2.6.0
Resolution:              |   Keywords:
      Port:              |
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Changes (by ryandesign):

 * Attachment "portindex.diff" added.


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Ticket URL: <https://trac.macports.org/ticket/59069>
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