I have a package (keyutils) that produces three RPMs: keyutils (programs), keyutils-libs and keyutils-devel. The programs in the keyutils RPM depend on the libraries in the keyutils-libs RPM and pick up implicit dependencies thus:
warthog>rpm -qRp keyutils-1.5.1-1.fc14.x86_64.rpm ... config(keyutils) = 1.5.1-1.fc14 ... libkeyutils.so.1()(64bit) ... So does the keyutils rpm need an explicit Requires on the keyutils-libs rpm in the specfile or is the implicit library dependency sufficient?
Since it's a subpkg from the same srpm, I'd opt to be on the safe side, and add an explicit versioned Requires
-- rex