https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107720
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to seurer from comment #0) > g:1d9454aba615eadd0d85c93713dd848227345f67, r13-3936-g1d9454aba615ea > > This was on a make check of a simple (non-bootstrap) built compiler. I only > see this on one system. It's specific to systems using _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT which means LE systems with a new-enough glibc to support IEEE128. > FAIL: 17_intro/headers/c++2020/all_no_exceptions.cc (test for excess errors) > Excess errors: > /home/seurer/gcc/git/build/gcc-test2/powerpc64le-unknown-linux-gnu/libstdc++- > v3/include/format:2566: error: '_Args_next_value_' was not declared in this > scope; did you mean '_Arg_next_value_'? Doh, that's what I get for making changes after testing on a powerpc64le machine with a recent glibc, and then not re-testing.