[MacPorts] #57656: gcc6: backport of cmath fixes

[MacPorts]

#57656: gcc6: backport of cmath fixes
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  Reporter:  rmottola  |      Owner:  (none)
      Type:  defect    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  haspatch leopard snowleopard
      Port:  gcc6      |
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Comment (by rmottola):

 I think we will never do that, relying on LegacySupport, right? Then it is
 better to close this bug.

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Ticket URL: <https://trac.macports.org/ticket/57656#comment:3>
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