(isearch-buffers-multi): New option.

(isearch-buffers-search-fun): Test it.

etc/NEWS

@@ -153,12 +153,6 @@ history element containing the search string becomes the current.
 
 * New Modes and Packages in Emacs 23.1
 
-** The package isearch-multi.el has been added.  It implements a new mode
-`isearch-buffers-minor-mode' that allows isearch to search through
-multiple buffers.  In this mode a new variable
-`isearch-buffers-next-buffer-function' defines the function to call
-to get the next buffer to search in the series of multiple buffers.
-
 ** The package doc-view.el has been added.  It supports viewing of PDF,
 PostScript and DVI documents inside an Emacs buffer by converting the
 document to a set of PNG images first.  One can also search for a
@@ -177,6 +171,8 @@ When running isearch in a ChangeLog file, if the search fails,
 then another C-s tries searching the previous ChangeLog,
 if there is one (e.g. go from ChangeLog to ChangeLog.12).
 
+This is enabled if isearch-buffers-multi is non-nil.
+
 +++
 ** In Dired-x, all command guesses for ! are now added to the default
 list accessible by M-n instead of pushing all guesses temporarily into
@@ -432,6 +428,12 @@ forms to subroutines.
 
 * New Packages for Lisp Programming in Emacs 23.1
 
+** The package isearch-multi.el has been added.  It implements a new mode
+`isearch-buffers-minor-mode' that allows isearch to search through
+multiple buffers.  In this mode a new variable
+`isearch-buffers-next-buffer-function' defines the function to call
+to get the next buffer to search in the series of multiple buffers.
+
 ** The new package avl-tree.el deals with the AVL tree data structure.
 
 

lisp/ChangeLog

+2007-10-26  Richard Stallman  <rms@gnu.org>
+
+	* isearch-multi.el (isearch-buffers-multi): New option.
+	(isearch-buffers-search-fun): Test it.
+
+	* progmodes/ps-mode.el (ps-mode-map): Delete C-c v binding.
+	Put ps-run-clear on C-c C-l.
+
+	* newcomment.el (comment-styles): New style indent-or-triple.
+	(comment-style): Make that the default.
+	(comment-add defvar): Doc fix.
+	(comment-add): Delete arg EXTRA.
+	(comment-region-default): Open code call to comment-add.
+	Handle indent-or-triple style which uses `multi-char' for INDENT.
+
 2007-10-26  Juanma Barranquero  <lekktu@gmail.com>
 
 	* eshell/em-unix.el (nil-blank-string): Doc fix.

lisp/isearch-multi.el

@@ -37,6 +37,12 @@
   :version "23.1"
   :group 'isearch)
 
+(defcustom isearch-buffers-multi t
+  "Non-nil enables searching multiple related buffers, in certain modes."
+  :type 'boolean
+  :version "23.1"
+  :group 'isearch-buffers)
+
 (defcustom isearch-buffers-pause t
   "A choice defining where to pause the search.
 If the value is nil, don't pause before going to the next buffer.
@@ -121,7 +127,7 @@ Intended to be added to `isearch-mode-hook'."
        ;; successively, and search the string in them.  Do this only
        ;; when bound is nil (i.e. not while lazy-highlighting search
        ;; strings in the current buffer).
-       (unless bound
+       (when (and (not bound) isearch-buffers-multi)
 	 ;; If no-pause or there was one attempt to leave the current buffer
 	 (if (or (null isearch-buffers-pause)
 		 (and isearch-buffers-pause isearch-buffers-current-buffer))