1 files changed, 10 insertions, 27 deletions

diff --git a/lisp/progmodes/octave.el b/lisp/progmodes/octave.el
index 9e4de4c207f..4b02645e463 100644
--- a/lisp/progmodes/octave.el
+++ b/lisp/progmodes/octave.el
@@ -34,6 +34,14 @@
 ;;; Code:
 (require 'comint)
 
+;;; For emacs < 24.3.
+(require 'newcomment)
+(eval-when-compile
+  (unless (fboundp 'setq-local)
+    (defmacro setq-local (var val)
+      "Set variable VAR to value VAL in current buffer."
+      (list 'set (list 'make-local-variable (list 'quote var)) val))))
+
 (defgroup octave nil
   "Editing Octave code."
   :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces)
@@ -589,17 +597,6 @@ mode, set this to (\"-q\" \"--traditional\")."
   ;; Could certainly do more font locking in inferior Octave ...
   "Additional expressions to highlight in Inferior Octave mode.")
 
-
-;;; Compatibility functions
-(if (not (fboundp 'comint-line-beginning-position))
-    ;; comint-line-beginning-position is defined in Emacs 21
-    (defun comint-line-beginning-position ()
-      "Returns the buffer position of the beginning of the line, after any prompt.
-The prompt is assumed to be any text at the beginning of the line matching
-the regular expression `comint-prompt-regexp', a buffer local variable."
-      (save-excursion (comint-bol nil) (point))))
-
-
 (defvar inferior-octave-output-list nil)
 (defvar inferior-octave-output-string nil)
 (defvar inferior-octave-receive-in-progress nil)
@@ -607,9 +604,6 @@ the regular expression `comint-prompt-regexp', a buffer local variable."
 (define-obsolete-variable-alias 'inferior-octave-startup-hook
   'inferior-octave-mode-hook "24.4")
 
-(defvar inferior-octave-has-built-in-variables nil
-  "Non-nil means that Octave has built-in variables.")
-
 (defvar inferior-octave-dynamic-complete-functions
   '(inferior-octave-completion-at-point comint-filename-completion)
   "List of functions called to perform completion for inferior Octave.
@@ -701,20 +695,11 @@ startup file, `~/.emacs-octave'."
                    'identity inferior-octave-output-list "\n")
                   "\n"))))
 
-     ;; Find out whether Octave has built-in variables.
-     (inferior-octave-send-list-and-digest
-      (list "exist \"LOADPATH\"\n"))
-     (setq inferior-octave-has-built-in-variables
-          (string-match "101$" (car inferior-octave-output-list)))
-
     ;; An empty secondary prompt, as e.g. obtained by '--braindead',
     ;; means trouble.
     (inferior-octave-send-list-and-digest (list "PS2\n"))
     (if (string-match "\\(PS2\\|ans\\) = *$" (car inferior-octave-output-list))
-        (inferior-octave-send-list-and-digest
-         (list (if inferior-octave-has-built-in-variables
-                   "PS2 = \"> \"\n"
-                 "PS2 (\"> \");\n"))))
+        (inferior-octave-send-list-and-digest (list "PS2 (\"> \");\n")))
 
     ;; O.k., now we are ready for the Inferior Octave startup commands.
     (let* (commands
@@ -725,9 +710,7 @@ startup file, `~/.emacs-octave'."
             (list "more off;\n"
                   (if (not (string-equal
                             inferior-octave-output-string ">> "))
-                      (if inferior-octave-has-built-in-variables
-                          "PS1=\"\\\\s> \";\n"
-                        "PS1 (\"\\\\s> \");\n"))
+                      "PS1 (\"\\\\s> \");\n")
                   (if (file-exists-p file)
                       (format "source (\"%s\");\n" file))))
       (inferior-octave-send-list-and-digest commands))