[MacPorts] #40807: MacPorts-built `dot` (from graphviz @2.34.0) hangs when generating doxymentation on 10.6

[MacPorts]

#40807: MacPorts-built `dot` (from graphviz @2.34.0) hangs when generating
doxymentation on 10.6
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  Reporter:  egall@…   |      Owner:  macports-tickets@…
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.2.0
Resolution:            |   Keywords:  snowleopard
      Port:  graphviz  |
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Comment (by egall@…):

 Replying to [comment:1 gnwiii@…]:
 > The same problem is mentioned at:
 [https://github.com/cooljeanius/LocalPorts/blob/master/sysutils/dpkg/Portfile].

 Yeah, that's also me.

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Ticket URL: <https://trac.macports.org/ticket/40807#comment:2>
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