[MacPorts] #55510: cmake 3.10.0 fails to build on leopard

[MacPorts]

#55510: cmake 3.10.0 fails to build on leopard
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  Reporter:  rmottola  |      Owner:  michaelld
      Type:  defect    |     Status:  closed
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:  fixed     |   Keywords:  leopard
      Port:  cmake     |
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Comment (by ryandesign):

 I verified with a small test program that the error gcc 6 is complaining
 about here is not really a problem; the bit shifting the old system
 headers do here still works fine. So I downgraded the error to a warning.

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Ticket URL: <https://trac.macports.org/ticket/55510#comment:14>
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