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

[MacPorts]

#28705: Fix to build libiconv with clang
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 Reporter:  bradskins@…           |       Owner:  macports-tickets@…                   
     Type:  submission            |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  1.9.2                                
 Keywords:  clang libiconv fixes  |        Port:  libiconv                             
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 Please add the following line to the portfile, so libiconv can be compiled
 with clang:

 configure.cflags -std=gnu89

 Notes: http://lists.freebsd.org/pipermail/freebsd-
 gnome/2009-June/022546.html

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