[MacPorts] #50481: qt4-mac: libc++ under Lion

[MacPorts]

#50481: qt4-mac: libc++ under Lion
-------------------------+-----------------------
  Reporter:  ctreleaven  |      Owner:  michaelld
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.4
Resolution:              |   Keywords:
      Port:  qt4-mac     |
-------------------------+-----------------------

Comment (by kencu):

 This install of 10.7 I have here has Xcode 4.6.3, which according to
 [wiki:XcodeVersionInfo] corresponds to an early clang-3.2, or in apple-
 speak, Clang 425.0.28.

 It looks like clang-3.7 (which works) would be equivalent to any version >
 700.

 Between 425 and 700 has not been tested by me. Building compilers takes
 many hours, not to mention how long compiling qt4-mac takes, so I'm not
 sure I'll ever get to that project.  According to the port writer's guide,
 we don't have to -- we could blacklist clang < 700 as we know that works
 -- unless someone running 10.8 or 10.9 wants to tell us exactly where the
 cutoff turns out to be..

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Ticket URL: <https://trac.macports.org/ticket/50481#comment:10>
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