[MacPorts] #38984: Provide a way to use C++11 with C++ ports (was: boost.regex: does not work with clang)

[MacPorts]

#38984: Provide a way to use C++11 with C++ ports
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  Reporter:  akim.demaille@…  |      Owner:  macports-tickets@…
      Type:  defect           |     Status:  closed
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.1.3
Resolution:  fixed            |   Keywords:
      Port:  boost            |
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Ticket URL: <https://trac.macports.org/ticket/38984#comment:4>
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