[MacPorts] #23683: Add libpng to wine-devel dependencies

[MacPorts]

#23683: Add libpng to wine-devel dependencies
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 Reporter:  bruno.didot@…        |       Owner:  macports-tickets@…                   
     Type:  request              |      Status:  new                                  
 Priority:  Normal               |   Milestone:                                       
Component:  ports                |     Version:  1.8.2                                
 Keywords:  wine-devel libpng    |        Port:  wine-devel                           
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 wine-devel: When libpng is installed wine-devel configures itself to
 support png in applications. So libpng should be by default a dependency
 of wine, or add --without-png (which I think is closer to a regression
 than an enhancement) to configure args.

 Note, not tested, but might create a bug when libpng is only present in
 64bits architecture, and wine compiles in 32b arch.

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Ticket URL: <http://trac.macports.org/ticket/23683>
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