[packagekit] Dependancies for PK

[Duncan Mac-Vicar Prett]

In libzypp we implement the zypper si -d command (source install, only 
build dependencies) of a package by matching the corresponding src.rpm 
for a package, and looking for its dependencies, as the Requires of a 
src.rpm are the BuildRequires of the .rpm.

AFAIK There is no other sane way (as the package does not contains the 
information )

Duncan