On Wed, 19 Jan 2011 23:59:55 +1000, Allan McRae <allan@archlinux.org> wrote:
Huh? How is no dependency checks (-Sd) equivalent to complete dependency checking (-S with a transitive closure of dependencies)? They are polar opposites.
What I mean is that if a transitive closure of dependencies is performed at packaging time, then there is no need to check for dependencies when installing the original package. Here is an example: A depends on B and D B depends on C C depends on D and E Currently the deps will be: A -> B,D B -> C C -> D,E When installing A, Pacman will: 1) check deps for A, start installing B and D 2) check deps for B and D, start installing C 3) check deps for C, start installing E With a transitive closure scheme at packaging time, the deps would be: A -> B,C,D,E B -> C,D,E C -> D,E When installing A, Pacman could simply install B, C, D and E *without* checking their deps (-Sd) because these deps are necessarily already included in those for A. -- Pierre 'catwell' Chapuis