[MacPorts] #54333: ffmpeg-devel @20170615_0 does not build on Mac OS X 10.6.8, Snow Leopard, because of missing vda_framework pthreads

[MacPorts]

#54333: ffmpeg-devel @20170615_0 does not build on Mac OS X 10.6.8, Snow Leopard,
because of missing vda_framework pthreads
---------------------------+-------------------------
  Reporter:  ballapete     |      Owner:
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.4.1
Resolution:                |   Keywords:  snowleopard
      Port:  ffmpeg-devel  |
---------------------------+-------------------------
Changes (by ballapete):

 * Attachment "main.log" added.

 main.log on Snow Leopard

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Ticket URL: <https://trac.macports.org/ticket/54333>
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