https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90983
Martin Sebor <msebor at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2019-06-25 Ever confirmed|0 |1 --- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> --- Confirmed. Looks like I added the -Wno- option aliases for -Walloc-size-larger-than= and -Walloca-larger-than= but missed the others. GCC will only warn for unknown options if it emits other warnings so -Wno-stack-usage alone won't cause a warning unless something else leads to some other warning.