This patch allows short-circuiting of building binary packages. To
prevent accidental use of short-circuited rpms, they are marked with
an unsatisfiable dependency "rpmlib(ShortCircuited)". A developer using
this feature for local development and testing will use "--nodeps".
Should such a rpm leak into the world, users will quickly notice
it does not install by default.
(v3: avoids API change, suggested by Panu Matilainen.
v2: added poisoning with unsatisfiable dependency.)
Michal
7583fcc341