Ever since I followed the switch from nvidia-glx to nvidia-drivers, I have problems linking amarok. I can only link it against xorg-x11 opengl libs, linking against nvidia's fails. Additionally, my already built amarok package does not load when nvidia's opengl driver is eselected, probably because of the same problem. Amarok builds and is working when built with USE="-visualization -opengl". I'm not the only one having that (or at least a similar) problem, as the url to the gentoo forum shows. They have problems linking kdebase against nvidia-drivers. I don't have my exact error message at hand atm, but iirc it deals with the same missing symbols as the ones in the forums.
*** This bug has been marked as a duplicate of 114893 ***
