https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87488
--- Comment #22 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Indeed, RHEL5 (admittedly in extended lifecycle support only now) and RHEL6 use old VTE though, dunno about the other long term support distros. Dunno what are the probabilities users will use new GCC on those (but, it is enough if they use such old distros on the desktop and just ssh to some other host running new gcc).