[MacPorts] #50463: ddd @3.3.12: Xt error (Unresolved inheritance operation)

[MacPorts]

#50463: ddd @3.3.12: Xt error (Unresolved inheritance operation)
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  Reporter:  ewout+keyword+macports.8d331b@…  |      Owner:  macports-
                                              |  tickets@…
      Type:  defect                           |     Status:  new
  Priority:  Normal                           |  Milestone:
 Component:  ports                            |    Version:  2.3.4
Resolution:                                   |   Keywords:
      Port:  ddd                              |
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Comment (by ryandesign):

 The [http://lists.gnu.org/archive/html/ddd/ ddd mailing list archives] are
 also full of reports of this problem, going back to the release of El
 Capitan, with no solution mentioned.

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Ticket URL: <https://trac.macports.org/ticket/50463#comment:8>
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