[MacPorts] #62639: rust 1.51.0 on Mac OS 10.7.5?

[MacPorts]

#62639: rust 1.51.0 on Mac OS 10.7.5?
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  Reporter:  lemzwerg  |      Owner:  g5pw
      Type:  defect    |     Status:  assigned
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  lion mountainlion mavericks
      Port:  rust      |
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Comment (by Wowfunhappy):

 Replying to [comment:6 aeiouaeiouaeiouaeiouaeiouaeiou]:
 > I found that support for pre-Yosemite macs was broken in the original
 source code [https://github.com/rust-
 lang/rust/issues/80804#issuecomment-809116615 starting with 1.49].
 Hmm...
 > After the release at 1.49, we at conda-forge are seeing some new build
 failures on macOS builds due to a missing _linkat symbol:

 It looks like linkat is included in the legacy-support package, maybe try
 adding the `legacysupport` PortGroup?

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Ticket URL: <https://trac.macports.org/ticket/62639#comment:7>
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