* lisp/eshell/esh-mode.el (ansi-color-apply-text-property-face):
Declare to avoid a compilation warning.
(autoload 'ansi-color-apply-on-region "ansi-color")
(defvar ansi-color-apply-face-function)
+(declare-function ansi-color-apply-text-property-face "ansi-color"
+ (BEG END FACE))
(defun eshell-handle-ansi-color ()
"Handle ANSI color codes."
+ (require 'ansi-color)
(let ((ansi-color-apply-face-function #'ansi-color-apply-text-property-face))
(ansi-color-apply-on-region eshell-last-output-start
eshell-last-output-end)))