[MacPorts] #37994: qt4-mac: Objective-C block (^) support not detected

[MacPorts]

#37994: qt4-mac: Objective-C block (^) support not detected
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  Reporter:  ryandesign@…  |      Owner:  michaelld@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.1.3
Resolution:                |   Keywords:  leopard
      Port:  qt4-mac       |
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Comment (by michaelld@…):

 I take it that compiling using Apple's GCC 4.0 worked OK on 4.8.4_3 before
 the change I made to checking for ObjC blocks? If that's the case, then I
 need to figure out a better way to test for this condition.

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Ticket URL: <https://trac.macports.org/ticket/37994#comment:1>
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