diff --git a/lisp/emacs-lisp/warnings.el b/lisp/emacs-lisp/warnings.el index 8b43c6a8726..672c9ed4618 100644 --- a/lisp/emacs-lisp/warnings.el +++ b/lisp/emacs-lisp/warnings.el @@ -120,6 +120,14 @@ warning-suppress-types See also `warning-suppress-log-types'." :type '(repeat (repeat symbol)) :version "22.1") + +(defcustom warning-display-at-bottom t + "Display the warning buffer at the bottom of the screen. +The output window will be scrolled to the bottom of the buffer +to show the last warning message." + :type 'boolean + :version "30.1") + ;; The autoload cookie is so that programs can bind this variable ;; safely, testing the existing value, before they call one of the @@ -362,10 +370,20 @@ display-warning (or (< (warning-numeric-level level) (warning-numeric-level warning-minimum-level)) (warning-suppress-p type warning-suppress-types) - (let ((window (display-buffer buffer))) + (let ((window (display-buffer + buffer + (when warning-display-at-bottom + '(display-buffer--maybe-at-bottom + (window-height . (lambda (window) + (fit-window-to-buffer window 10))) + (category . warning)))))) (when (and (markerp warning-series) (eq (marker-buffer warning-series) buffer)) (set-window-start window warning-series)) + (when warning-display-at-bottom + (with-selected-window window + (set-window-point window (point-max)) + (recenter -1))) (sit-for 0))))))))) ;; Use \\ so that help-enable-autoload can do its thing.