https://gcc.gnu.org/bugzilla/show_bug.cgi?id=39616
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |WONTFIX --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> --- extern char proxy_assertion_broken[offsetof (struct cpp_hashnode, ident) == 0 ? 1 : -1]; offsetof needs to be a constant expression but the openbsd definition is not (pointer are not part of an integral constant expression). OpenBSD also disable all use of gcc supplied headers so only a fixincludes can be done but since that is for a 7 year old OS which is most likely not used any more.