[MacPorts] #29092: clutter should not depend on gtk2

[MacPorts]

#29092: clutter should not depend on gtk2
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 Reporter:  james.athey@…               |       Owner:  macports-tickets@…                   
     Type:  enhancement                 |      Status:  new                                  
 Priority:  Normal                      |   Milestone:                                       
Component:  ports                       |     Version:  1.9.2                                
 Keywords:  haspatch                    |        Port:  clutter                              
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 Strictly speaking, clutter does not require gtk2.  Instead, it actually
 requires pango, cairo, glib2, atk, and json-glib.  On OSX, the quartz
 image backend is supported even for x11 targets, so there's no part of
 gtk2 needed.

 Requiring gtk2 when using the no_x11 variant of clutter is especially
 obnoxious, since gtk2 ends up installing all of the unwanted X11
 dependencies anyway.

 A patch is attached for clutter's Portfile.  It includes the true
 dependencies and uses the quartz image backend.

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Ticket URL: <https://trac.macports.org/ticket/29092>
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