[opensuse-packaging] Different Target-Distributions

hi, I'm packaging some of my RPMs in the buildService, others I can't put there for different reasons. For the latter, I'm using the build sh Script from openSUSE BS. Is there something like a DIST-TARGET to be defined or does this solely depend on the RPMs I offer it for the installation? ($BUILD_RPMS)? osc offers a feature like this, but I guess osc is not usable without putting the packages in the BS repositories, right? Thanks Dominique