https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88609
--- Comment #1 from Dimitar Dimitrov <dinuxbg at gmail dot com> --- Note that this build error depends on the host compiler used to build the avr toolchain. I can build successfully with host: gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 Build fails with host top-of-tree build: gcc (GCC) 9.0.0 20181215 (experimental)
