[Bug driver/103949] gcc fails to provide a standard conforming C11 or C++17 environment even when specifying -std=c11 or -std=c++17

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103949

--- Comment #16 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jörn Heusipp from comment #15)
> --enable-threads=posix --program-suffix=-posix

Then it should be defining __STDCPP_THREADS__=1, odd.