[MacPorts] #28276: arb: Upgrade to 5.2

[MacPorts]

#28276: arb: Upgrade to 5.2
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 Reporter:  matt.cottrell@…       |       Owner:  macports-tickets@…                   
     Type:  update                |      Status:  new                                  
 Priority:  Normal                |   Milestone:                                       
Component:  ports                 |     Version:  1.9.2                                
 Keywords:  libpng                |        Port:  arb                                  
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Comment(by ryandesign@…):

 * r76340: committed your libpng fix patch, with these changes:
   * removed "-I$(OSX_SDK)/usr/X11/include" from XINCLUDES definition on
 darwin; on all OSes we want X11 software to come from PREFIX
   * changed XHOME from /usr/X11R6 to PREFIX for the same reason
   * changed XMKMF to always be PREFIX/bin/xmkmf, not just on darwin, for
 the same reason
   * removed the hunk about OSX_SDK since we're already handling that with
 a reinplace in the portfile, and this doesn't relate to the task of fixing
 libpng
   * incremented the port revision
  Hope this looks ok. I did not know how to reproduce the runtime libpng
 error you encountered, so I could not verify that these changes fix it.

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Ticket URL: <https://trac.macports.org/ticket/28276#comment:24>
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