https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91092
Rich Felker <bugdal at aerifal dot cx> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugdal at aerifal dot cx --- Comment #11 from Rich Felker <bugdal at aerifal dot cx> --- I'm strongly in favor of fixing this, but the configure situation is a mess. Doing this needs both an active project to fix configure scripts (starting with upstream autoconf/gnulib ones, and at least in the past, the maintainers' misguided opinions that testing for symbol presence with missing or invalid declarations was a valid configure test! see: https://ewontfix.com/13/) and probably one of the workarounds described above (detecting configure use and not erroring out in that case?).