tetex-3.eclass has several build-time depencendies with USE=X, but these are missing from RDEPEND. For example, /usr/bin/xdvi-motif.bin (installed by tetex) is linked against Motif shared libraries. I'm not sure if assigning RDEPEND=${DEPEND} would be the correct solution, since some additional run-time dependencies are inherited from tetex.eclass.
> I'm not sure if assigning RDEPEND=${DEPEND} would be the correct solution, > since some additional run-time dependencies are inherited from tetex.eclass. Next time I should think before posting... RDEPEND is of course accumulated between eclasses. Added RDEPEND="${DEPEND}" to tetex-3.eclass, with permission from aballier.