anchor.diff:                                           (socket sock)))
                  (setf (state sock) :READ))))))))
   
  -
  -)
  +) ; progn
   
   (defun map-socket-error (sock-err)
     (map-errno-error (sb-bsd-sockets::socket-error-errno sock-err)))
  
positive.code:      waiter))
  ) ; progn
  
  #+ecl
  (progn
    (defun wait-for-input-internal (wl &key timeout)
      (with-mapped-conditions ()
  
negative.code: 
  #+ecl
  (progn
    #-:wsock
    (ffi:clines
     "#include <errno.h>"
  