This algorithm works for all packages currently usable on xbps.
Previous code didn't take into account the correct order between
indirect and direct deps.
--HG--
extra : convert_revision : c49a20ce300e6e9dfa565325b40745b5a78b78ed
This implementation will be faster and resolv the dependency chain
correctly taking into account indirect/direct deps and priority.
--HG--
extra : convert_revision : cc4ec186f06f944fa8825b176344c4d612658f85