-;;; --- This is currently all a bit CMUCL-specific ---
-
-#+cmu
-(defun exit (&optional (code 0))
- "Polite way to end a program. If running in an interactive Lisp, just
-return to the top-level REPL."
- (if *batch-mode*
- (throw 'lisp::%end-of-the-world code)
- (progn
- (unless (zerop code)
- (format t "~&Exiting unsuccessfully with code ~D.~%" code))
- (abort))))
-
-#+cmu
-(defun hard-exit (code)
+(defvar *raw-command-line*
+ (or #+cmu ext:*command-line-strings*
+ #+sbcl sb-ext:*posix-argv*
+ #+ecl (loop from i below (ext:argc) collect (ext:argv i))
+ #+clisp (coerce (ext:argv) 'list)
+ '("<unknown-lisp>" "--" "<unknown-script>")))
+
+(defvar *command-line*
+ (or (cdr (member "--" *raw-command-line* :test #'string=))
+ *raw-command-line*))
+
+#-clisp
+(unless (fboundp 'exit)
+ (defun exit (&optional (code 0))
+ "Polite way to end a program."
+ #+(or cmu ecl) (ext:quit code)
+ #+sbcl (sb-ext:quit :unix-status code)
+ #-(or cmu ecl sbcl)
+ (progn
+ (unless (zerop code)
+ (format t "~&Exiting unsuccessfully with code ~D.~%" code))
+ (abort))))
+
+(defun hard-exit (&optional (code 0))