[MacPorts] #58258: harfbuzz @2.3.1: build fails on 10.6 buildbot

[MacPorts]

#58258: harfbuzz @2.3.1: build fails on 10.6 buildbot
-----------------------+---------------------------------------
  Reporter:  dbevans   |      Owner:  ryandesign
      Type:  defect    |     Status:  accepted
  Priority:  Normal    |  Milestone:
 Component:  ports     |    Version:
Resolution:            |   Keywords:  tiger leopard snowleopard
      Port:  harfbuzz  |
-----------------------+---------------------------------------
Changes (by ryandesign):

 * status:  assigned => accepted
 * keywords:   => tiger leopard snowleopard


Comment:

 They've previously still supported gcc 4.2 and accepted fixes for it, but
 they've now dropped support for gcc 4.2 and will require C++11 in a future
 release.

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Ticket URL: <https://trac.macports.org/ticket/58258#comment:5>
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