[MacPorts] #54183: qt4-mac @4.8.7: build failures with clang-4.0 due to comparison between pointer and zero

[MacPorts]

#54183: qt4-mac @4.8.7: build failures with clang-4.0 due to comparison between
pointer and zero
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  Reporter:  kencu    |      Owner:
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:
Resolution:           |   Keywords:
      Port:  qt4-mac  |
----------------------+-----------------

Comment (by michaelld):

 LOL doesn't work on 10.12 for me using libc++. Errors out linking qmake,
 with the following for 3 different system libraries, just like this ticket
 #51701 .

 I'm getting there with 10.8. Just takes time to get everything installed.

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Ticket URL: <https://trac.macports.org/ticket/54183#comment:6>
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