Download patch
ref: 1ddc8ebc5a089cbd1b949e505b3f166c9aa83432 parent: 18b911086631a1ba5b8db386b97da1a6bbe83b84 author: Marc-Alexandre Espiaut <marcalexandre@member.fsf.org> date: Mon Jun 4 11:35:09 EDT 2018
Removing DOS code _rt_util.h