[MacPorts] #33472: qt4-mac warns about SDK dir not being found with Xcode 4.3

[MacPorts]

#33472: qt4-mac warns about SDK dir not being found with Xcode 4.3
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 Reporter:  cal@…             |       Owner:  michaelld@…           
     Type:  defect            |      Status:  new                   
 Priority:  Normal            |   Milestone:                        
Component:  ports             |     Version:  2.0.4                 
 Keywords:  haspatch          |        Port:  qt4-mac               
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Comment(by jmr@…):

 The patch is correct if what you want to do is make the port do the same
 thing it's always done when Xcode 4.3 is used. But you really don't need
 to use an SDK at all unless ${configure.sdkroot} is non-empty. (It will be
 set correctly for all known Xcode versions.)

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Ticket URL: <https://trac.macports.org/ticket/33472#comment:4>
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