https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90123
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- /usr/include/stdio.h comes from glibc. cproto is the issue report it to them. I noticed cproto is no longer maintained too.