https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64296
--- Comment #1 from Alfred Minarik <alfred.minarik.1 at aon dot at> --- just wanted to add, that I've found you can easily work around by make BOOT_CFLAGS='-fPIC -g -O2' (I don't know if something additionally gets compiled with -fPIC that needn't or shouldn't)
