[MacPorts] #53577: db60 @6.0.30_2 build fails with atomic_init error, clang-3.8 or clang-3.9, MacOSX 10.6.8/libc++ but builds correctly with clang-3.7

[MacPorts]

#53577: db60 @6.0.30_2 build fails with atomic_init error, clang-3.8 or clang-3.9,
MacOSX 10.6.8/libc++ but builds correctly with clang-3.7
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  Reporter:  kencu   |      Owner:  afb@…
      Type:  defect  |     Status:  assigned
  Priority:  Normal  |  Milestone:
 Component:  ports   |    Version:
Resolution:          |   Keywords:  snowleopard
      Port:  db60    |
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Comment (by kencu):

 See also [ticket:54664] which is for the same issue, but with db48.

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Ticket URL: <https://trac.macports.org/ticket/53577#comment:13>
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