[MacPorts] #39975: root: Add --enable-cxx11 when using libc++

[MacPorts]

#39975: root: Add --enable-cxx11 when using libc++
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  Reporter:  jfcaron@…    |      Owner:  jeremyhu@…
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.2.0
Resolution:               |   Keywords:
      Port:  root         |
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Comment (by jonesc@…):

 Did you manage to test this ? ROOT 5.34.12 is likely to be released soon
 (to fix amongst over things some residual OSX 10.9 issues) and I would
 like to include this patch in that update, at the same time.

 If you didn't managed, if you could upload a simple test case I can just
 run, to this ticket, I can try it myself on my OSX10.9 machine.

 Chris

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Ticket URL: <https://trac.macports.org/ticket/39975#comment:24>
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