[MacPorts] #66278: graphviz: installing with +smyrna flag fails on fresh install

[MacPorts]

#66278: graphviz: installing with +smyrna flag fails on fresh install
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  Reporter:  i3roly    |      Owner:  ryandesign
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  graphviz  |
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Comment (by Dave-Allured):

 @i3roly, thanks for testing and narrowing down the failure.

 Reported upstream: https://gitlab.com/graphviz/graphviz/-/issues/2315

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Ticket URL: <https://trac.macports.org/ticket/66278#comment:2>
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