1 files changed, 4 insertions, 2 deletions

diff --git a/lisp/gnus/gmm-utils.el b/lisp/gnus/gmm-utils.el
index 3357ee42239..6a64dcff11b 100644
--- a/lisp/gnus/gmm-utils.el
+++ b/lisp/gnus/gmm-utils.el
@@ -420,8 +420,10 @@ coding-system."
 ;; `labels' got obsolete since Emacs 24.3.
 (defmacro gmm-labels (bindings &rest body)
   "Make temporary function bindings.
-The lexical scoping is handled via `lexical-let' rather than relying
-on `lexical-binding'.
+The bindings can be recursive and the scoping is lexical, but capturing
+them in closures will only work if `lexical-binding' is in use.  But in
+Emacs 24.2 and older, the lexical scoping is handled via `lexical-let'
+rather than relying on `lexical-binding'.
 
 \(fn ((FUNC ARGLIST BODY...) ...) FORM...)"
   `(,(progn (require 'cl) (if (fboundp 'cl-labels) 'cl-labels 'labels))