--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/update-elc.el	Mon Aug 13 10:04:58 2007 +0200
@@ -0,0 +1,142 @@
+;;; update-elc.el --- Bytecompile out-of-date dumped files
+
+;; Copyright (C) 1997 Free Software Foundation, Inc.
+;; Copyright (C) 1996 Unknown
+
+;; Maintainer: XEmacs Development Team
+;; Keywords: internal
+
+;; This file is part of XEmacs.
+
+;; XEmacs is free software; you can redistribute it and/or modify it
+;; under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2, or (at your option)
+;; any later version.
+
+;; XEmacs is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with XEmacs; see the file COPYING.  If not, write to the 
+;; Free Software Foundation, 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Synched up with: Not in FSF.
+
+;;; Commentary:
+
+;; Byte compile the .EL files necessary to dump out xemacs.
+;; Use this file like this:
+;;
+;; temacs -batch -l ../lisp/update-elc.el $lisp
+;;
+;; where $lisp comes from the Makefile.  .elc files listed in $lisp will
+;; cause the corresponding .el file to be compiled.  .el files listed in
+;; $lisp will be ignored.
+;;
+;; (the idea here is that you can bootstrap if your .ELC files
+;; are missing or badly out-of-date)
+
+;; Currently this code gets the list of files to check passed to it from
+;; src/Makefile.  This must be fixed.  -slb
+
+;;; Code:
+
+(defvar processed nil)
+(defvar update-elc-files-to-compile nil)
+
+;(setq update-elc-files-to-compile
+;      (delq nil
+;	    (mapcar (function
+;		     (lambda (x)
+;		       (if (string-match "\.elc$" x)
+;			   (let ((src (substring x 0 -1)))
+;			     (if (file-newer-than-file-p src x)
+;				 (progn
+;				   (and (file-exists-p x)
+;					(null (file-writable-p x))
+;					(set-file-modes x (logior (file-modes x) 128)))
+;				   src))))))
+;		    ;; -batch gets filtered out.
+;		    (nthcdr 3 command-line-args))))
+
+(define-function 'defalias 'define-function)
+(require 'packages)
+
+(let ((autol (list-autoloads)))
+  ;; (print (prin1-to-string autol))
+  (while autol
+    (let ((src (car autol)))
+      (if (and (file-exists-p src)
+	       (file-newer-than-file-p src (concat src "c")))
+	  (setq update-elc-files-to-compile
+		(cons src update-elc-files-to-compile))))
+    (setq autol (cdr autol))))
+
+;; We must have some lisp support at this point
+(let ((temp-path (expand-file-name "." (car load-path))))
+  (setq load-path (nconc (directory-files temp-path t "^[^-.]"
+					  nil 'dirs-only)
+			 (cons temp-path load-path))))
+
+;(load "backquote")
+;(load "bytecomp-runtime")
+;(load "subr")
+;(load "replace")
+;(load "version.el")
+;(load "cl")
+;(load "featurep")
+
+;; (print (prin1-to-string update-elc-files-to-compile))
+
+(let (preloaded-file-list site-load-packages)
+  (load (concat default-directory "../lisp/prim/dumped-lisp.el"))
+  ;; (print (prin1-to-string preloaded-file-list))
+  (load (concat default-directory "../site-packages") t t)
+  (setq preloaded-file-list
+	(append packages-hardcoded-lisp
+		preloaded-file-list
+		packages-useful-lisp
+		site-load-packages))
+  (while preloaded-file-list
+    (let ((arg (car preloaded-file-list)))
+      ;; (print (prin1-to-string arg))
+      (if (null (member arg packages-unbytecompiled-lisp))
+	  (progn
+	    (setq arg (locate-library arg))
+	    (if (null arg)
+		(progn
+		  (print (format "Library file %s: not found"
+				 (car preloaded-file-list)))
+		  (kill-emacs)))
+	    (if (string-match "\\.elc?\\'" arg)
+		(setq arg (substring arg 0 (match-beginning 0))))
+	    (if (and (null (member arg processed))
+		     (file-exists-p (concat arg ".el"))
+		     (file-newer-than-file-p (concat arg ".el")
+					     (concat arg ".elc")))
+		(setq processed (cons (concat arg ".el") processed)))))
+      (setq preloaded-file-list (cdr preloaded-file-list)))))
+
+(setq update-elc-files-to-compile (append update-elc-files-to-compile
+					  processed))
+
+;; (print (prin1-to-string update-elc-files-to-compile))
+
+(if update-elc-files-to-compile
+    (progn
+      (setq command-line-args
+	    (append '("-l" "loadup-el.el" "run-temacs"
+		      "-batch" "-q" "-no-site-file"
+		      "-l" "bytecomp" "-f" "batch-byte-compile")
+		    update-elc-files-to-compile))
+      (load "loadup-el.el"))
+  (condition-case nil
+      (delete-file "./NOBYTECOMPILE")
+    (file-error nil)))
+
+(kill-emacs)
+
+;;; update-elc.el ends here