https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108328
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Considering -fwrapv has been there since GCC 3.4.0, I think python should just change how their configuring. -fwrapv was added in r0-50210-g4fa26a60791ec3 .