https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81797
--- Comment #24 from Chris Johns <chrisj at rtems dot org> --- I would welcome a patch attached to this ticket. My efforts with .NOTPARALLEL cannot get RTEMS's cross-compiled tools to build. I have seen a build work however most fail with a range of headers that can vary from build to build. I can see the massive `ln -s` happening and after the build fails and stops all the links are present.