https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63684
--- Comment #6 from Phil Muldoon <pmuldoon at redhat dot com> --- I am already past that point in my build. auto-host.h is an automatically generated file, so I am quite puzzled why in your case it has not found it. In my case, it is in obj/gcc/auto-host.h. I built with your parameters. Was this a new build from a new checkout? If you updated from an existing src base, did you run make distclean over the old build? Or just start with a new obj/ location?
