autoconfiscating top level directory -- info wanted

[DJ Delorie]

> * I'll assume that any directory which doesn't appear in the gcc 
> repository or the src repository, and which isn't created by the top 
> level configure script, doesn't exist (and any references to configuring 
> it are obselete and can be removed).  Sound reasonable?

I didn't say they didn't exist.  I said you don't have to worry about
them.  I think Cygnus used to keep local copies of *everything* and
use the toplevel script to build it all, but that's no longer the case
(we have a few extras that gcc+src don't have, but that's not your
problem).

> OK, you've got me: what's a host-x-host build?  Is it where the build 
> machine is the same as the target but the host is different?

http://gcc.gnu.org/onlinedocs/gcc-3.0.2/gcc_14.html#SEC167