mark flymake-mode as safe local variable when the value is nil

diff --git a/lisp/progmodes/flymake-ui.el b/lisp/progmodes/flymake-ui.el
index 3fb1ecaa7f04858dd3f54755411e69cd2cca79d5..69f0c77a71ef4fe8f3741f33afbf420f61f1b1bf 100644 (file)
--- a/lisp/progmodes/flymake-ui.el
+++ b/lisp/progmodes/flymake-ui.el
@@ -517,6 +517,9 @@ For the format of LINE-ERR-INFO, see `flymake-ler-make-ler'."
 
     (setq flymake-is-running nil))))
 
+;; disabling flymake-mode is safe, enabling - not necessarily so
+(put 'flymake-mode 'safe-local-variable 'null)
+
 ;;;###autoload
 (defun flymake-mode-on ()
   "Turn flymake mode on."