Backport cedet/ede/emacs.el change from trunk

In case anyone uses 24.4 to edit trunk Emacs sources

* lisp/cedet/ede/emacs.el (ede-emacs-version): Update AC_INIT regexp.

Fixes: debbugs:17160

lisp/cedet/ChangeLog

+2014-04-01  Glenn Morris  <rgm@gnu.org>
+
+	* ede/emacs.el (ede-emacs-version): Update AC_INIT regexp.  (Bug#17160)
+
 2014-03-04  Glenn Morris  <rgm@gnu.org>
 
 	* semantic/util.el (semantic-complete-symbol):

lisp/cedet/ede/emacs.el

@@ -116,7 +116,7 @@ m4_define(\\[SXEM4CS_BETA_VERSION\\], \\[\\([0-9]+\\)\\])")
        (t
 	(insert-file-contents configure_ac)
 	(goto-char (point-min))
-	(re-search-forward "AC_INIT(emacs,\\s-*\\([0-9.]+\\)\\s-*)")
+	(re-search-forward "AC_INIT(\\(?:GNU \\)?[eE]macs,\\s-*\\([0-9.]+\\)\\s-*[,)]")
 	(setq ver (match-string 1))
 	)
        )