Variable: ispell-look-p
ispell-look-p is a customizable variable defined in ispell.el.gz.
Value
nil
Documentation
Non-nil means use look rather than grep.
Default is based on whether look seems to be available.
Source Code
;; Defined in /usr/src/emacs/lisp/textmodes/ispell.el.gz
(defcustom ispell-look-p (and ispell-look-command
(file-exists-p ispell-look-command))
"Non-nil means use `look' rather than `grep'.
Default is based on whether `look' seems to be available."
:type 'boolean)