https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106472
--- Comment #8 from Roger Sayle <roger at nextmovesoftware dot com> --- Investigating further, using an absolute path doesn't help, but interestingly after the failure, repeatedly trying "make -j 8 bootstrap" a few times, allows the build to progress after several attempts, so it looks like a race condition issue, caused by a missing (serializing) dependency.
