https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87231
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Keywords| |build Target| |*-*-openbsd* Status|UNCONFIRMED |NEW Last reconfirmed| |2018-09-05 Component|bootstrap |target Ever confirmed|0 |1 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- This is due to config/t-openbsd: # We don't need GCC's own include files. USER_H = $(EXTRA_HEADERS) Except openbsd does not include stdatomic.h and most likely does not include many other C11/C14/C1X headers either: $(srcdir)/ginclude/stdnoreturn.h \ $(srcdir)/ginclude/stdalign.h \ $(srcdir)/ginclude/stdatomic.h \