New option `grep-highlight-matches'.

etc/NEWS

@@ -1878,7 +1878,12 @@ in new face `next-error'.
 `grep-scroll-output' can be used to override the corresponding
 compilation mode settings for grep commands.
 
-*** Source line is temporarily highlighted when going to next match.
+*** New option `grep-highlight-matches' highlightes matches in *grep*
+buffer.  It uses a special feature of some grep programs which accept
+--color option to output markers around matches.  When going to the next
+match with `next-error' the exact match is highlighted in the source
+buffer.  Otherwise, if `grep-highlight-matches' is nil, the whole
+source line is highlighted.
 
 *** New key bindings in grep output window:
 SPC and DEL scrolls window up and down.  C-n and C-p moves to next and

lisp/ChangeLog

@@ -7,6 +7,23 @@
 	recent compilation directory only when `recompile' is invoked NOT
 	in the compilation buffer.  Otherwise, use `default-directory' of
 	the compilation buffer.
+	(compilation-error-properties): Allow to funcall col and end-col.
+	(compilation-mode-font-lock-keywords): Check col and end-col by
+	`integerp'.
+	(compilation-goto-locus): If end-mk is non-nil in transient mark
+	mode don't activate the mark (and don't display message in
+	push-mark), but highlight overlay between mk and end-mk.
+
+	* progmodes/grep.el (grep-highlight-matches): New defcustom.
+	(grep-regexp-alist): Add rule to highlight grep matches.
+	(grep-process-setup): Set env-vars GREP_OPTIONS and GREP_COLOR.
+
+	* info.el (Info-fontify-node): Don't compute other-tag
+	if Info-hide-note-references=hide.
+
+	* help.el (function-called-at-point):
+	* help-fns.el (variable-at-point):
+	Try `find-tag-default' when other methods failed.
 
 	* emacs-lisp/lisp.el (beginning-of-defun, end-of-defun):
 	Do not push mark if inhibit-mark-movement is non-nil.