Continue from bug#67179 Example: net-print/cups-1.2.3 has or dependency. If the use ppds and the followings are merged: net-print/cups-pdf-2.4.1 net-print/foomatic-db-ppds net-print/foomatic-filters-ppds It tries to remove: net-print/foomatic-db-ppds net-print/foomatic-filters-ppds Maybe the dependency of cups is incorrect... I think the or is inclusive... But if not... Then I will open a separate bug for cups so it will or and and all combinations of dependencies.
Created attachment 96196 [details] emerge.out emerge -petvd world
Looks like dupe of Bug 146517 to me. emerge --sync, re-emerge cups and try again.