[MacPorts] #8763: 'port uninstall' does not remove entry in dependency list.

[MacPorts]

#8763: 'port uninstall' does not remove entry in dependency list.
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  Reporter:  agentmonkey at gmail.com  |       Owner:  macports-tickets at lists.macosforge.org
      Type:  defect                 |      Status:  new                                  
  Priority:  Normal                 |   Milestone:  MacPorts base bugs                   
 Component:  base                   |     Version:                                       
Resolution:                         |    Keywords:                                       
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Changes (by jmr at macports.org):

 * cc: agentmonkey at gmail.com (removed)
 * cc: jmr at macports.org (added)

Comment:

 The bit of code that is causing this problem is
 [http://trac.macosforge.org/projects/macports/browser/trunk/base/src/registry1.0/portuninstall.tcl#L144
 here]. The issue is that at that point you don't know which of the
 multiple versions of the port actually needed a given dependency (since
 dependencies can change between versions), and hence you don't know
 whether you can remove the dep map entry.

 It would be possible to just trim the supernumerary entries from the dep
 map, but that would still leave you with spurious entries in cases where
 dependencies have been dropped from the new port version.

 Maybe upgrade should clear the dep map entries for the old version before
 installing the new version?

-- 
Ticket URL: <http://trac.macosforge.org/projects/macports/ticket/8763#comment:13>
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