[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 chrstphrchvz):

 This ticket was reported for a relatively ancient version of bazel
 (0.18.0); the `bazel` port is now at 4.1.0, and the oldest version in
 MacPorts is in the `bazel-0.25` port. I’m not aware of there even being a
 version of bazel in MacPorts which supports building on anything earlier
 than macOS 10.10. Can this ticket be closed (or is the purpose of this
 ticket for requesting a bazel that builds on older macOS)?

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Ticket URL: <https://trac.macports.org/ticket/57513#comment:11>
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