flymake: Flymake mode

 
 3.1 Flymake mode
 ================
 
 Flymake is an Emacs minor mode.  To use Flymake, you must first activate
 ‘flymake-mode’ by using the ‘flymake-mode’ function.
 
    Instead of manually activating ‘flymake-mode’, you can configure
 Flymake to automatically enable ‘flymake-mode’ upon opening any file for
 which syntax check is possible.  To do so, place the following line in
 ‘.emacs’:
 
      (add-hook 'find-file-hook 'flymake-find-file-hook)