[MacPorts] #28705: Fix to build libiconv with clang

[MacPorts]

#28705: Fix to build libiconv with clang
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 Reporter:  bradskins@…          |       Owner:  ryandesign@…           
     Type:  enhancement          |      Status:  new                    
 Priority:  Normal               |   Milestone:                         
Component:  ports                |     Version:                         
 Keywords:                       |        Port:  libiconv               
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Comment(by ryandesign@…):

 We do on Xcode 4.2+, but I haven't heard of any problems as a result. See
 also #28706 for more discussion.

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Ticket URL: <https://trac.macports.org/ticket/28705#comment:3>
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