>If we use /usr/gnu (or some equivalent) we can >be quite sure (I hope) that we have that corner to ourselves (not a >very precise statement, I know, but I hope you get the intention). Yes, I agree. You should envisage the GNU stuff as a package on the system, not something embedded into it. People with Lattice (me!) would use /usr/lattice, as Lattice is another separate package.