stipped Mac classic path support, changed permission checking to use access (unless setuid)
stipped Mac classic path support, changed permission checking to use access (unless setuid)

svn: r1647

mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket,mafagafogigante/racket