https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86018
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2021-12-17 Ever confirmed|0 |1 Keywords| |needs-bisection --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Seems fixed in GCC 9+. Note the warning happens even without the include of string.