[MacPorts] #68417: graphviz-gui @9.0.0_0 build failure

[MacPorts]

#68417: graphviz-gui @9.0.0_0 build failure
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  Reporter:  dershow       |      Owner:  ryandesign
      Type:  defect        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  graphviz-gui  |
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Comment (by dershow):

 I've upgraded to XCode 15.1 (CLT 15.1.0.0.1.1700200546) and it's still not
 building.

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Ticket URL: <https://trac.macports.org/ticket/68417#comment:10>
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