[MacPorts] #57513: bazel @0.18.0: error: no type named 'unique_ptr' in namespace 'std'

[MacPorts]

#57513: bazel @0.18.0: error: no type named 'unique_ptr' in namespace 'std'
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  Reporter:  ryandesign  |      Owner:  RootFunction
      Type:  defect      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:
      Port:  bazel       |
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Comment (by ryandesign):

 Replying to [comment:8 cjones051073]:
 > Just out of curiosity, what lead you to need to use bazel on 10.6 in the
 first place ? Until I updated py-tensorflow to use it, nothing else in
 MacPorts did (thankfully).

 I was monitoring build failures on the Buildbot. I saw this one and wanted
 to report it to you.

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Ticket URL: <https://trac.macports.org/ticket/57513#comment:10>
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