X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/190644a0115a592f237b5f7c91f0f96e82edb864..93b31b57283d369fefc5c95082d7b09288f05128:/lisp/subr.el

diff --git a/lisp/subr.el b/lisp/subr.el
index 9accb9d36c..c168cf5fdb 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -3102,6 +3102,11 @@ buffer temporarily current, and the window that was used to display it
 temporarily selected.  But it doesn't run `temp-buffer-show-hook'
 if it uses `temp-buffer-show-function'.
 
+By default, the setup hook puts the buffer into Help mode before running BODY.
+If BODY does not change the major mode, the show hook makes the buffer
+read-only, and scans it for function and variable names to make them into
+clickable cross-references.
+
 See the related form `with-temp-buffer-window'."
   (declare (debug t))
   (let ((old-dir (make-symbol "old-dir"))