https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71429
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |manu at gcc dot gnu.org Resolution|--- |INVALID --- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- GCC has no such option: https://gcc.gnu.org/onlinedocs/gcc/Option-Index.html#Option-Index Perhaps your OS is lying to you about which compiler you are using. See gcc -v