Variable: emerge-diff-program

emerge-diff-program is a customizable variable defined in emerge.el.gz.

Value

"diff"

Documentation

Name of the program which compares two files.

Source Code

;; Defined in /usr/src/emacs/lisp/vc/emerge.el.gz
;; Commands that produce difference files
;; All that can be configured is the name of the programs to execute
;; (emerge-diff-program and emerge-diff3-program) and the options
;; to be provided (emerge-diff-options).  The order in which the file names
;; are given is fixed.
;; The file names are always expanded (see expand-file-name) before being
;; passed to diff, thus they need not be invoked under a shell that
;; understands `~'.
;; The code which processes the diff/diff3 output depends on all the
;; finicky details of their output, including the somewhat strange
;; way they number lines of a file.
(defcustom emerge-diff-program "diff"
  "Name of the program which compares two files."
  :type 'string)