[MacPorts] #52046: jsoncpp @1.7.4: error: no type named 'unique_ptr' in namespace 'std'

[MacPorts]

#52046: jsoncpp @1.7.4: error: no type named 'unique_ptr' in namespace 'std'
-------------------------------+-------------------------
 Reporter:  ryandesign@…       |      Owner:  michaelld@…
     Type:  defect             |     Status:  new
 Priority:  Normal             |  Milestone:
Component:  ports              |    Version:  2.3.4
 Keywords:  lion mountainlion  |       Port:  jsoncpp
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 jsoncpp fails to build with clang on Lion and Mountain Lion with the above
 error.

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Ticket URL: <https://trac.macports.org/ticket/52046>
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