anchor.diff:             #:process-output
              #:process-error
              #:process-close
  -           #:process-pool
  +           #:process-poll
              #:process-wait
              #:process-kill
              #:process-input-close
  
positive.code:                                       stderr)))
                (pid (isys:fork)))
            (case pid
              (0 (when stdin
                   (isys:close (pipe-wr pin))
                   (isys:dup2 (pipe-rd pin) +STDIN-FILENO+)
                   (isys:close (pipe-rd pin)))
  
negative.code:                       (isys:close (pipe-rd perr))
                        (isys:dup2 (pipe-wr perr) +STDERR-FILENO+)
                        (isys:close (pipe-wr perr)))))
  
                 
                 (isys:execv "/bin/sh" %agrs))
              (otherwise
  