(let ((slime-helper-file (expand-file-name "~/quicklisp/slime-helper.el")))
    (when (file-exists-p slime-helper-file)
      (use-package slime
	    :ensure nil
	    :init (load slime-helper-file)
    	:bind (("C-c C-v C-v . slime-vari-describe-symbol"))
    	:config
    	(add-hook 'lisp-mode-hook #'my/init-lisp)
    	(add-hook 'lisp-interaction-mode-hook #'my/init-lisp)
    	(add-hook 'slime-repl-mode-hook #'my/init-lisp)
    	(setq slime-lisp-implementations
    	      '((sbcl ("/usr/bin/sbcl") :coding-system utf-8-unix))
	          slime-net-coding-system 'utf-8-unix
	          slime-contribs '(slime-fancy
	            		       slime-repl
						       slime-scratch)))))
(use-package ac-slime
    :config
    (add-hook 'slime-mode-hook #'set-up-slime-ac)
    (add-hook 'slime-repl-mode-hook #'set-up-slime-ac)
    (add-to-list 'ac-modes 'slime-repl-mode))