[MacPorts] #40238: ROOT Update to fix C++11 and gfortran issues

[MacPorts]

#40238: ROOT Update to fix C++11 and gfortran issues
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  Reporter:  jonesc@…  |      Owner:  macports-tickets@…
      Type:  update    |     Status:  new
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:  2.2.0
Resolution:            |   Keywords:  haspatch maintainer
      Port:  root      |
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Comment (by ryandesign@…):

 Why add a cxx11 variant? Under what circumstances should the user select
 or deselect this? Does this variant work on all OS X versions MacPorts
 runs on?

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Ticket URL: <https://trac.macports.org/ticket/40238#comment:1>
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