[MacPorts] #57716: graph-tool fails to build with latest CGAL

[MacPorts]

#57716: graph-tool fails to build with latest CGAL
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  Reporter:  ssllmit        |      Owner:  count0
      Type:  defect         |     Status:  assigned
  Priority:  Normal         |  Milestone:
 Component:  ports          |    Version:  2.5.4
Resolution:                 |   Keywords:
      Port:  py-graph-tool  |
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Comment (by mamoll):

 I can reproduce this error with py37-graph-tool using clang-7.0 as the
 compiler, so it's probably not the python version or the compiler that's
 to blame. Most likely the API of CGAL changed slightly.
 @count0, do you have a fix upstream?

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Ticket URL: <https://trac.macports.org/ticket/57716#comment:3>
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