[MacPorts] #33596: gnuplot: update to 4.6.0

[MacPorts]

#33596: gnuplot: update to 4.6.0
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 Reporter:  mojca.miklavec.lists@…          |       Owner:  macports-tickets@…                   
     Type:  update                          |      Status:  new                                  
 Priority:  Normal                          |   Milestone:                                       
Component:  ports                           |     Version:  2.0.4                                
 Keywords:                                  |        Port:  gnuplot                              
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Comment(by mojca.miklavec.lists@…):

 I just tested on Snow Leopard and then discovered that
 kProcessTransformToBackgroundApplication is listed on Lion Api diff list
 at
 http://developer.apple.com/library/mac/#releasenotes/General/MacOSXLionAPIDiffs/ApplicationServices.html.

 {{{
 typedef UInt32 ProcessApplicationTransformState;
 enum {
   kProcessTransformToForegroundApplication = 1,
   kProcessTransformToBackgroundApplication = 2, /* functional in Mac OS X
 Barolo and later */
   kProcessTransformToUIElementApplication = 4 /* functional in Mac OS X
 Barolo and later */
 };
 }}}

 It seems that gnuplot with qt would need an additional patch to work on
 10.6 and earlier.

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Ticket URL: <https://trac.macports.org/ticket/33596#comment:18>
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