Recent build failures -- a connection with tty/sh revisions? C library changes?

[bf]

> * bf <bf2006a at yahoo.com> wrote:
> > I'm seeing some strange behavior on 8-CURRENT amd64 r189705 that
> > has only started to occur in the last few days.

> Same here. I'm running an LLVM buildbot and it fails at random moments,
> clobbering random files in the source tree. I don't think it's 
> related to TTYs.

Also on amd64, Ed? What svn revision?

b.