https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89130
--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> --- Oh, so it does. So I guess I could revert r268537 then. The downstream package where this caused a build failure was already changed to stop (foolishly) deleting move ctors, so it's not causing any more problems that I know of.