https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80645
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> --- I'm not able to reproduce the warning mentioned in comment #1 either with a native x86_64 compiler (-m32 or -m64), or with the cross-compilers I tried (powerpc64le-linux and sparcv9-sun-solaris2.11).
