[MacPorts] #17765: py-matplotlib, py25-matplotlib: incomplete +cairo, +gtk2, +tkinter, +wxpython variants

[MacPorts]

#17765: py-matplotlib, py25-matplotlib: incomplete +cairo, +gtk2, +tkinter,
+wxpython variants
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 Reporter:  ryandesign@…             |       Owner:  ram@…                         
     Type:  defect                   |      Status:  new                           
 Priority:  Normal                   |   Milestone:  Port Bugs                     
Component:  ports                    |     Version:  1.7.0                         
 Keywords:                           |        Port:  py-matplotlib, py25-matplotlib
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 In py-matplotlib, the +cairo, +gtk2, +tkinter and +wxpython variants all
 just add a dependency. This isn't enough... A configure argument (or a
 patch or a reinplace or something) also needs to be added to cause the
 port to use the relevant library. If matplotlib automatically uses the
 relevant library if present, then that is a problem, because we do not
 want the port to link with libraries it hasn't declared dependencies on,
 so any such automatic library detection needs to be disabled by default,
 and then can be re-enabled in the appropriate variants.

 py25-matplotlib already seems to have a fix for this issue for the +gtk2,
 +tkinter and +wxpython variants so these fixes can be adopted in the py-
 matplotlib port (and the revision should then be increased). Both ports
 still need a fix for the +cairo variant.

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Ticket URL: <http://trac.macports.org/ticket/17765>
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