[MacPorts] #30461: kdenlive 0.8.2 mlt 0.7.4 updates

[MacPorts]

#30461: kdenlive 0.8.2 mlt 0.7.4 updates
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 Reporter:  ryandesign@…             |       Owner:  dan@…          
     Type:  update                   |      Status:  new            
 Priority:  Normal                   |   Milestone:                 
Component:  ports                    |     Version:  2.0.0          
 Keywords:                           |        Port:  kdenlive mlt   
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Comment(by dan@…):

 I am working on updating these ports, but mlt requires configure.compiler
 llvm-gcc-4.2 on my system (Xcode 4.2 on Mac OS X 10.6). How do I instruct
 port to use this on systems with clang, but default compiler otherwise?

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Ticket URL: <https://trac.macports.org/ticket/30461#comment:2>
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