[MacPorts] #42800: ddd @3.3.12_2: error: friend declaration specifying a default argument must be a definition

[MacPorts]

#42800: ddd @3.3.12_2: error: friend declaration specifying a default argument must
be a definition
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  Reporter:  rbd@…   |      Owner:  macports-tickets@…
      Type:  defect  |     Status:  new
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:  2.2.1
Resolution:          |   Keywords:
      Port:  ddd     |
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Comment (by carsten@…):

 Still present on yosemite beta

 > error: friend declaration specifying a default argument must be a
 definition

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Ticket URL: <https://trac.macports.org/ticket/42800#comment:7>
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