[MacPorts] #50806: gnuplot on ElCapitan fails due to Symbol not found

[MacPorts]

#50806: gnuplot on ElCapitan fails due to Symbol not found
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  Reporter:  chlangley@…  |      Owner:  mojca@…
      Type:  defect       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  gnuplot      |
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Comment (by david@…):

 https://trac.macports.org/ticket/50868 cover what may be the same problem.

 The machine I'm using had a fresh install of El Capitan (no upgrade) + has
 XCode up to date.

 While I agree /System/Library/Frameworks is badly broken, having
 suggestions about how to fix this would be great.

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Ticket URL: <https://trac.macports.org/ticket/50806#comment:2>
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