[MacPorts] #28656: zlib won't build with clang

[MacPorts]

#28656: zlib won't build with clang
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 Reporter:  vince@…             |       Owner:  macports-tickets@…                   
     Type:  defect              |      Status:  new                                  
 Priority:  Normal              |   Milestone:                                       
Component:  ports               |     Version:  1.9.2                                
 Keywords:  clang               |        Port:  zlib                                 
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 The Zlib configure script expect its compiler to contain the 'gcc' string,
 otherwise it branches to some default configuration that outputs a .so
 file (instead of .dylib).
 The following additional patch makes it work correctly with clang (llvm-
 gcc-4.2 works since it contains 'gcc').

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Ticket URL: <https://trac.macports.org/ticket/28656>
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