[MacPorts] #14892: Add no-doc variant to GTK2

[MacPorts]

#14892: Add no-doc variant to GTK2
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 Reporter:  stonehippo at mac.com  |       Owner:  macports-tickets at lists.macosforge.org
     Type:  enhancement         |      Status:  new                                  
 Priority:  Normal              |   Milestone:                                       
Component:  ports               |     Version:  1.6.0                                
 Keywords:  gtk-doc gtk2        |  
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 By default gtk2 depends on gtk-doc, which installs a bunch of unneeded
 dependencies (docbook, docbook-xsl, perl 5.8.8, python 2.5, etc) that
 aren't needed for using GTK2-based apps.

 Please add a no-doc variant to the gtk2 package to exclude this
 dependency. Better yet, remove it from the default variant and create a
 "with-doc" variant: gtk-doc is not needed as a build or runtime
 dependency.

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/14892>
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