when clisp (cvs head) is built with MT & readline, killing clisp leaves the terminal in the raw state:
1. start clisp (built with MT & readline) in a terminal, wait for the "> " prompt.
2, type "killall -v lisp.run" in a separate terminal.
3. return to the first terminal to discover the message "*** some threads were not signaled to terminate." and a raw terminal.