[MacPorts] #60512: installing cdo failed due to deprecated.cxx11 PortGroup

[MacPorts]

#60512: installing cdo failed due to deprecated.cxx11 PortGroup
---------------------+----------------------
  Reporter:  boervu  |      Owner:  tenomoto
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.6.2
Resolution:          |   Keywords:
      Port:  cdo     |
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Comment (by mf2k):

 That's simply a warning and not the actual error. Please attach the
 main.log file.

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Ticket URL: <https://trac.macports.org/ticket/60512#comment:4>
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