[MacPorts] #55382: cmake @3.10.0: Cannot find a C++ compiler supporting C++11 on this system

[MacPorts]

#55382: cmake @3.10.0: Cannot find a C++ compiler supporting C++11 on this system
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  Reporter:  ryandesign  |      Owner:  michaelld
      Type:  defect      |     Status:  new
  Priority:  High        |  Milestone:
 Component:  ports       |    Version:
Resolution:              |   Keywords:  tiger leopard snowleopard lion
      Port:  cmake       |  mountainlion
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Comment (by ryandesign):

 I have a working cmake 3.10.0 built with libc++ on 10.6 right now, which
 would presumably work on 10.7 and 10.8 too. Having some trouble on 10.5
 Intel...

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Ticket URL: <https://trac.macports.org/ticket/55382#comment:34>
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