https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86518
--- Comment #5 from Eric Gallager <egallager at gcc dot gnu.org> --- (In reply to Jonathan Wakely from comment #3) > I wouldn't be surprised if the build fails with -Wnarrowing (but maybe that > should be fixed anyway, so we can build with non-GNU compilers that default > to C++11 or later). Well yes, that was my ulterior motive for suggesting it... ;-)
