[MacPorts] #20625: subversion: add +xcode variant to use MacPorts subversion in Xcode

[MacPorts]

#20625: subversion: add +xcode variant to use MacPorts subversion in Xcode
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 Reporter:  nathan@…          |       Owner:  dluke@…           
     Type:  enhancement       |      Status:  new               
 Priority:  Low               |   Milestone:                    
Component:  ports             |     Version:  1.7.1             
 Keywords:                    |        Port:  subversion        
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Comment(by ryandesign@…):

 It is a fundamental principle of MacPorts that it does not interfere with
 your Apple-provided software. The way this is accomplished is that
 MacPorts software is supposed to be confined to its own prefix (e.g.
 /opt/local). There are some exceptions but in general this is true.

 The variant you propose would interfere with Apple-provided software.
 First, replacing the system's svn libraries would interfere with the
 system's svn program. And if you were to uninstall the subversion port, it
 would leave your system's Subversion completely nonfunctional.

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Ticket URL: <http://trac.macports.org/ticket/20625#comment:4>
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