https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108197
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Created attachment 63540 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63540&action=edit preprocessed source Just in case. as mentioned a newer boost also seems to have avoided the warning too.
