[opensuse-packaging] How to resolve one package dependency problem

Hi all, I have a problem with workrave (X11:Utilities) package. It requires python-cheetah for build, unfortunately there is no such package in openSUSE_11.3 (in my branch I link it against devel:languages:python). So how do link single package against another repo? Or should the link be added to the project X11:Utilities? If so, how could it be done - I'm only a maintainer of this package, is there some ''request add link'' option? regards Stefan