+(defun set-command-line-arguments ()
+ (setf *command-line*
+ (or (when (member :cl-launch *features*)
+ (let* ((uiop-package (find-package :uiop))
+ (cll-package (find-package :cl-launch))
+ (name (some (intern "GETENV"
+ (or uiop-package cll-package))
+ (list "__CL_ARGV0" "CL_LAUNCH_FILE")))
+ (args (symbol-value
+ (if uiop-package
+ (intern "*COMMAND-LINE-ARGUMENTS*"
+ uiop-package)
+ (intern "*ARGUMENTS*" cll-package)))))
+ (if name
+ (cons name args)
+ args)))
+ #+cmu ext:*command-line-strings*
+ #+sbcl sb-ext:*posix-argv*
+ #+ecl (loop from i below (ext:argc) collect (ext:argv i))
+ #+clisp (loop with argv = (ext:argv)
+ for i from 7 below (length argv)
+ collect (aref argv i))
+ '("<unknown-lisp>" "--" "<unknown-script>")))
+ (setf *program-name* (pathname-name (car *command-line*))))
+(set-command-line-arguments)
+
+#-clisp
+(unless (fboundp 'exit)
+ (defun exit (&optional (code 0))
+ "Polite way to end a program."
+ #+(or cmu ecl) (ext:quit code)
+ #+sbcl (sb-ext:exit :code code)
+ #-(or cmu ecl sbcl)
+ (progn
+ (unless (zerop code)
+ (format t "~&Exiting unsuccessfully with code ~D.~%" code))
+ (abort))))
+
+(defun hard-exit (&optional (code 0))
+ "Stops the program immediately in its tracks. Does nothing else. Use
+ after fork, for example, to avoid flushing buffers."
+ (declare (type (unsigned-byte 32) code))
+ #+cmu (unix::void-syscall ("_exit" c-call:int) code)
+ #+sbcl (sb-ext:exit :code code :abort t)
+ #+(or clisp ecl) (ext:quit code))