[MacPorts] #35970: xemacs fails to build with libpng @1.5.12

[MacPorts]

#35970: xemacs fails to build with libpng @1.5.12
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 Reporter:  Eric.J.Fielding@…             |       Owner:  macports-tickets@…                   
     Type:  defect                        |      Status:  new                                  
 Priority:  Normal                        |   Milestone:                                       
Component:  ports                         |     Version:  2.1.2                                
 Keywords:                                |        Port:                                       
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 xemacs fails in compilation due to incompatibility with new libpng. Many
 errors like this:


 :info:build glyphs-eimage.c:941:21: error: incomplete definition of type
 'struct png_info_def'
 :info:build     width = info_ptr->width;
 :info:build             ~~~~~~~~^

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Ticket URL: <https://trac.macports.org/ticket/35970>
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