[MacPorts] #20666: py26-matplotlib 0.99.0 - Set CocoaAgg backend as variant

[MacPorts]

#20666: py26-matplotlib 0.99.0 - Set CocoaAgg backend as variant
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 Reporter:  mdippery@…          |       Owner:  macports-tickets@…                   
     Type:  enhancement         |      Status:  new                                  
 Priority:  Normal              |   Milestone:                                       
Component:  ports               |     Version:  1.7.1                                
 Keywords:                      |        Port:  py26-matplotlib                      
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 py26-matplotlib automatically builds with the CocoaAgg backend, which
 requires a large number of dependencies related to the PyObjC bridge,
 which aren't necessary if you're doing basic work with py26-matplotlib and
 don't want to use the CocoaAgg backend at all. In keeping with the port's
 convention, this patch creates a variant, "cocoa", that enables the
 CocoaAgg backend.

 This patch also removes py26-configobj as a dependency, since it does not
 seem to be an actual dependency in this version of matplotlib.

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Ticket URL: <http://trac.macports.org/ticket/20666>
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