Re: Fix in-src-tree builds by making gdbserver/gnulib/ a separate library (a la libiberty, etc.), and adding ACX_CONFIGURE_DIR.

[Joel Brobecker <brobecker@adacore.com>]

I think that this patch is a really nice step forward, thanks Pedro.
Kudos to Yao as well for initiating the effort.

> > If there's no disagreement that moving gdbserver to the top level is
> > the right thing to do (I think it is) then I think time spent doing
> > something different is ultimately time not well used.
> 
> This first step is less intrusive, and we can test the new gnulib wrapper
> library scheme this way without a top level move.  That much isn't lost,
> and is IMO, the largest change here.  Plus, it's already written; it
> only took me a few hours.  :-)

Likewise. The code is already written, so might as well use it...

Perhaps we'll just want to fork away from top-level src, and have
our own independent src (which, btw, would pave the way for a switch
to a better VCS). It raises the problem of the synchronization
with binutils, of course, but other than that, do we really need
to have the same src as all the other projects? Do we really benefit
from that?

-- 
Joel