https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108183
--- Comment #5 from Iain Sandoe <iains at gcc dot gnu.org> --- so I guess gm2-libs/termios.def causes the declaration of _M2_termios_ctor to be created, but I still cannot figure out what the sequence is that causes it to be created as non-external (there is no external function with that name anyway as we already established). There's no termios.mod ..
