cc -O2 -pipe  -pthread -I/usr/local/include  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations unistd/_CS_POSIX_V8_LP64_OFF64_LDFLAGS.c -o unistd/_CS_POSIX_V8_LP64_OFF64_LDFLAGS -D_POSIX_C_SOURCE=202405L  -lm -lpthread -L/usr/local/lib  -lintl
unistd/_CS_POSIX_V8_LP64_OFF64_LDFLAGS.c:2:17: error: use of undeclared identifier '_CS_POSIX_V8_LP64_OFF64_LDFLAGS'
    2 | int const foo = _CS_POSIX_V8_LP64_OFF64_LDFLAGS;
      |                 ^
1 error generated.