[MacPorts] #55920: FreeRDP @2.0.0-rc1: build fails

[MacPorts]

#55920: FreeRDP @2.0.0-rc1: build fails
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  Reporter:  sbarajas  |      Owner:
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:
      Port:  FreeRDP   |
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Comment (by ryandesign):

 I see our buildbot only managed to build this on Yosemite or later, so we
 need to look into what's going wrong on Mavericks and earlier.

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Ticket URL: <https://trac.macports.org/ticket/55920#comment:2>
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