https://gcc.gnu.org/bugzilla/show_bug.cgi?id=44574
--- Comment #14 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Created attachment 59847 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59847&action=edit Patch which adds the poison to system.h Obvious this does not compile right now because of the use of atoi but this can help find all of the atoi usage too.