[MacPorts] #21579: libxml2 upgrade 2.7.3->2.7.4 breaks inkscape

[MacPorts]

#21579: libxml2 upgrade 2.7.3->2.7.4 breaks inkscape
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 Reporter:  michael.klein@…                     |       Owner:  cedric.luthi@…        
     Type:  defect                              |      Status:  new                   
 Priority:  Normal                              |   Milestone:                        
Component:  ports                               |     Version:  1.8.0                 
 Keywords:                                      |        Port:  libxml2               
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Comment(by r_goyet@…):

 Here's a fix. Here's what it does :
 1/ Bumps the revision of libxml2 as it's still version 2.7.4
 2/ Adds the right patch from libxml2's git repository to the "files"
 subfolder (patch had to be a adapted a little bit)
 3/ Mentions the patch in the Portfile

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Ticket URL: <http://trac.macports.org/ticket/21579#comment:3>
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