[MacPorts] #44693: bitcoin @0.9.1: error: Could not find a version of the boost_system library!

[MacPorts]

#44693: bitcoin @0.9.1: error: Could not find a version of the boost_system
library!
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  Reporter:  posita   |      Owner:  easieste@…
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.1
Resolution:           |   Keywords:
      Port:  bitcoin  |
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Comment (by ryandesign):

 Please check if this is still a problem with bitcoin @0.16.0.

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Ticket URL: <https://trac.macports.org/ticket/44693#comment:7>
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