emacs; auto-complete; all buffers;

gistfile1.el

(require 'auto-complete-config)
(ac-config-default)

(setq-default
 ac-sources '(
	      ac-source-words-in-all-buffer
	      ac-source-words-in-buffer
	      ac-source-files-in-current-dir              
	      )
 )
(defun auto-complete-mode-maybe ()
  "Overwrite auto-complete-mode-maybe which by defaults turns autocomplete only on for buffers listed in ac-modes."
  (unless (minibufferp (current-buffer))
    (auto-complete-mode 1)))
(setq  ac-use-fuzzy t)
(setq ac-ignore-case (quote smart))
(global-auto-complete-mode t)