Function: dired--check-use-ls-dired
dired--check-use-ls-dired is a byte-compiled function defined in
dired.el.gz.
Signature
(dired--check-use-ls-dired)
Documentation
Return non-nil if ls supports the "--dired" switch.
Source Code
;; Defined in /usr/src/emacs/lisp/dired.el.gz
(defun dired--check-use-ls-dired ()
"Return non-nil if `ls' supports the \"--dired\" switch."
(eq 0 (call-process insert-directory-program nil nil nil "--dired" "-N")))