x11-apps/listres compiles fine on amd64. It runs fine (in the "no core dumps" sense - not familiar enough with app to say if output is "correct"). I think it can stand to have the ~amd64 keyword added to its ebuild. Reproducible: Always Steps to Reproduce: emerge -pv shows that I built listres with USE="-debug -xprint", FWIW.
added ~amd64, closing