[MacPorts] #37847: graphviz +ming: build failure due to missing include

[MacPorts]

#37847: graphviz +ming: build failure due to missing include
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  Reporter:  davidfavor  |      Owner:  ryandesign
      Type:  defect      |     Status:  closed
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.1.2
Resolution:  fixed       |   Keywords:
      Port:  graphviz    |
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Comment (by Smattr):

 Is this still something that needs fixing in Graphviz?

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Ticket URL: <https://trac.macports.org/ticket/37847#comment:7>
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