can you come up with an algorithm that solves the problem?
Don't you simply need a postfix visitor?
sub uninstall {
my ($pkg) = @_;
return if !installed($pkg);
uninstall($_) for get_dependencies($pkg);
... uninstall $pkg here ...
}
Update: Ah, nevermind. That deletes dependencies that are still in use. Why would you want to do delete a dependency that's still in use? By that logic, uninstalling CGI::Simple should uninstall perl (strict's distribution).
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