anchor.diff:     #:cflag-vmin #:cflag-vlnext #:cflag-vquit #:cflag-veol #:cflag-vreprint
      #:cflag-vtime #:cflag-vstop #:cflag-veol2 #:cflag-vwerase #:cflag-veof
      #:cflag-vsusp #:cflag-vintr #:cflag-vkill #:cflag-vstart #:cflag-verase
  -   #:cflag-vdiscard #:cflag-vswtc
  +   #:cflag-vdiscard #:cflag-vswtc #:cflag-vstatus #:cflag-vdsusp
  +
  +   #:tty-echo
  +   #:tty-icanon
  +   #:tty-icrnl
  +   #:tty-inlcr
  +   #:tty-ixon
  +   #:tty-ixoff
  +   #:tty-ocrnl
  +   #:tty-onlcr
  +
  +   #:tcsanow
  +   #:tcsadrain
  +   #:tcsaflush
  +
      #:posix-vdisable
   
      ;; Misc
  
positive.code:    #:sync
     #:sysconf
     #:syslog
     #:telldir
     #:time
     #:timer-create
  
negative.code:    #:gettimeofday
     #:getuid
     #:ioctl
     #:isatty
     #:kill
     #:link
     #:lockf
  