Function: diff-check-labels

diff-check-labels is a byte-compiled function defined in diff.el.gz.

Signature

(diff-check-labels &optional FORCE)

Source Code

;; Defined in /usr/src/emacs/lisp/vc/diff.el.gz
(defun diff-check-labels (&optional force)
  (if (not (or force (eq 'check diff-use-labels)))
      diff-use-labels
    (setq diff-use-labels
	  (with-temp-buffer
	    (when (ignore-errors
		    (call-process diff-command nil t nil "--help"))
	      (if (search-backward "--label" nil t) t))))))