[MacPorts] #55180: tbb @2017_U8 does not build on Snow Leopard, Mac OS X 10.6.8, because of missing members

[MacPorts]

#55180: tbb @2017_U8 does not build on Snow Leopard, Mac OS X 10.6.8, because of
missing members
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  Reporter:  ballapete  |      Owner:  sean@…
      Type:  defect     |     Status:  assigned
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.4.2
Resolution:             |   Keywords:  snowleopard
      Port:  tbb        |
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Comment (by ballapete):

 Replying to [comment:5 kencu]:
 > opencv doesn't require tbb; it's an optional variant. If you have
 trouble, disable it. I built open cv on 10.6.8 not long ago -- as you know
 -- [ticket:53562]

 And me too. TBB offers certainly some improvements when build with TBB on
 a multi-core CPU. So I decided to make this variant my default.

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Ticket URL: <https://trac.macports.org/ticket/55180#comment:7>
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