[MacPorts] #15161: depends_* should have more useful semantics

[MacPorts]

#15161: depends_* should have more useful semantics
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  Reporter:  jmr at macports.org  |       Owner:  macports-tickets at lists.macosforge.org
      Type:  enhancement       |      Status:  new                                  
  Priority:  Normal            |   Milestone:  MacPorts base enhancements           
 Component:  base              |     Version:  1.7.0                                
Resolution:                    |    Keywords:  dependencies                         
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Comment (by jmr at macports.org):

 It seems that there is one useful distinction made currently:
 depends_build deps are not added to the registry, so even though they get
 installed whether you're building the port or not, you can at least
 uninstall them afterwards without getting dependency errors.

 I think that fully resolving this ticket will have to wait for the fabled
 dependency engine rewrite. For now, I propose making it possible to use
 depends_build stuff in the extract, patch and configure phases.

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Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/15161#comment:2>
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