diff lisp/loadup.el @ 209:41ff10fd062f r20-4b3

Import from CVS: tag r20-4b3
author cvs
date Mon, 13 Aug 2007 10:04:58 +0200
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children 1f0dabaa0855
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/loadup.el	Mon Aug 13 10:04:58 2007 +0200
@@ -0,0 +1,214 @@
+;;; loadup.el --- load up standardly loaded Lisp files for XEmacs.
+
+;; Copyright (C) 1985, 1986, 1992, 1994 Free Software Foundation, Inc.
+;; Copyright (C) 1996 Richard Mlynarik.
+;; Copyright (C) 1995, 1996 Ben Wing.
+
+;; 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, Inc., 59 Temple Place - Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; Synched up with: Last synched with FSF 19.30, with wild divergence since.
+
+;;; Commentary:
+
+;; It is not a good idea to edit this file.  Use site-init.el or site-load.el
+;; instead.
+;;
+;; This is loaded into a bare Emacs to make a dumpable one.
+
+;;; Code:
+
+(if (fboundp 'error)
+    (error "loadup.el already loaded!"))
+
+(define-function 'defalias 'define-function)
+(defvar running-xemacs t
+  "Non-nil when the current emacsen is XEmacs.")
+(defvar preloaded-file-list nil
+  "List of files preloaded into the XEmacs binary image.")
+
+(call-with-condition-handler
+      ;; This is awfully damn early to be getting an error, right?
+      'really-early-error-handler
+ #'(lambda ()
+     ;; message not defined yet ...
+     (external-debugging-output (format "\nUsing load-path %s" load-path))
+
+     ;; We don't want to have any undo records in the dumped XEmacs.
+     (buffer-disable-undo (get-buffer "*scratch*"))
+
+     ;; lread.c (or src/Makefile.in.in) has prepended "${srcdir}/../lisp/"
+     ;; to load-path, which is how this file has been found.  At this point,
+     ;; enough of emacs has been initialized that we can call directory-files
+     ;; and get the rest of the dirs (so that we can dump stuff from modes/
+     ;; and packages/.)
+     ;;
+     (let ((temp-path (expand-file-name "." (car load-path))))
+       (setq source-directory temp-path)
+       (setq load-path (nconc (mapcar
+			       #'(lambda (i) (concat i "/"))
+			       (directory-files temp-path t "^[^-.]"
+						nil 'dirs-only))
+			      (cons (file-name-as-directory temp-path)
+				    load-path))))
+
+     (setq load-warn-when-source-newer t ; set to nil at the end
+	   load-warn-when-source-only  t)
+
+     ;; Inserted for debugging.  Something is corrupting a single symbol
+     ;; somewhere to have an integer 0 property list.  -slb 6/28/1997.
+     (defun test-atoms ()
+       (mapatoms
+	#'(lambda (symbol)
+	    (condition-case nil
+		(get symbol 'custom-group)
+	      (t (princ
+		  (format "Bad plist in %s, %s\n"
+			  (symbol-name symbol)
+			  (prin1-to-string (object-plist symbol)))))))))
+
+     ;; garbage collect after loading every file in an attempt to
+     ;; minimize the size of the dumped image (if we don't do this,
+     ;; there will be lots of extra space in the data segment filled
+     ;; with garbage-collected junk)
+     (defmacro load-gc (file)
+       (list 'prog1 (list 'load file)
+	     ;; '(test-atoms)
+	     '(garbage-collect)))
+     ;; Need a minimal number hardcoded to get going for now.
+     ;; (load-gc "backquote")		; needed for defsubst etc.
+     ;; (load-gc "bytecomp-runtime")	; define defsubst
+     ;; (load-gc "subr")		; load the most basic Lisp functions
+     ;; (load-gc "replace")		; match-string used in version.el.
+     ;; (load-gc "version.el")	; Ignore compiled-by-mistake version.elc
+     ;; (load-gc "cl")
+     ;; (load-gc "featurep") ; OBSOLETE now
+     (load "dumped-lisp.el")
+     (let ((dumped-lisp-packages preloaded-file-list)
+	   file)
+       (while (setq file (car dumped-lisp-packages))
+	 (load-gc file)
+	 (setq dumped-lisp-packages (cdr dumped-lisp-packages)))
+       (if (not (featurep 'toolbar))
+	   (progn
+	     ;; else still define a few functions.
+	     (defun toolbar-button-p    (obj) "No toolbar support." nil)
+	     (defun toolbar-specifier-p (obj) "No toolbar support." nil)))
+       (fmakunbound 'load-gc))
+     )) ;; end of call-with-condition-handler
+
+
+;; Fix up the preloaded file list
+(setq preloaded-file-list (mapcar #'file-name-sans-extension
+				  preloaded-file-list))
+
+(setq load-warn-when-source-newer t ; set to t at top of file
+      load-warn-when-source-only nil)
+
+(setq debugger 'debug)
+
+(when (member "no-site-file" command-line-args)
+  (setq site-start-file nil))
+
+;; If you want additional libraries to be preloaded and their
+;; doc strings kept in the DOC file rather than in core,
+;; you may load them with a "site-load.el" file.
+;; But you must also cause them to be scanned when the DOC file
+;; is generated.  For VMS, you must edit ../../vms/makedoc.com.
+;; For other systems, you must edit ../../src/Makefile.in.in.
+(if (load "site-load" t)
+    (garbage-collect))
+
+;;FSFmacs randomness
+;;(if (fboundp 'x-popup-menu)
+;;    (precompute-menubar-bindings))
+;;; Turn on recording of which commands get rebound,
+;;; for the sake of the next call to precompute-menubar-bindings.
+;(setq define-key-rebound-commands nil)
+
+
+;; Note: all compiled Lisp files loaded above this point
+;; must be among the ones parsed by make-docfile
+;; to construct DOC.  Any that are not processed
+;; for DOC will not have doc strings in the dumped XEmacs.
+
+;; Don't bother with these if we're running temacs, i.e. if we're
+;; just debugging don't waste time finding doc strings.
+
+;; purify-flag is nil if called from loadup-el.el.
+(when purify-flag
+  (message "Finding pointers to doc strings...")
+  ;; (test-atoms) ; Debug -- Doesn't happen here
+  (Snarf-documentation "DOC")
+  ;; (test-atoms) ; Debug -- Doesn't happen here
+  (message "Finding pointers to doc strings...done")
+  (Verify-documentation)
+  ;; (test-atoms) ; Debug -- Doesn't happen here
+  )
+
+;; Note: You can cause additional libraries to be preloaded
+;; by writing a site-init.el that loads them.
+;; See also "site-load" above.
+(if (stringp site-start-file)
+    (load "site-init" t))
+(setq current-load-list nil)
+(garbage-collect)
+
+;;; At this point, we're ready to resume undo recording for scratch.
+(buffer-enable-undo "*scratch*")
+
+;; Dump into the name `xemacs' (only)
+(when (member "dump" command-line-args)
+    (message "Dumping under the name xemacs")
+  (condition-case () (delete-file "xemacs") (file-error nil))
+  (when (fboundp 'really-free)
+    (really-free))
+  (dump-emacs "xemacs" "temacs")
+  (kill-emacs))
+
+(when (member "run-temacs" command-line-args)
+  (message "\nBootstrapping from temacs...")
+  (setq purify-flag nil)
+  ;; Remove all args up to and including "run-temacs"
+  (apply #'run-emacs-from-temacs (cdr (member "run-temacs" command-line-args)))
+  ;; run-emacs-from-temacs doesn't actually return anyway.
+  (kill-emacs))
+
+;; Avoid error if user loads some more libraries now.
+(setq purify-flag nil)
+
+;; XEmacs change
+;; If you are using 'recompile', then you should have used -l loadup-el.el
+;; so that the .el files always get loaded (the .elc files may be out-of-
+;; date or bad).
+(when (member "recompile" command-line-args)
+  (let ((command-line-args-left (cdr (member "recompile" command-line-args))))
+    (batch-byte-recompile-directory)
+    (kill-emacs)))
+
+;; For machines with CANNOT_DUMP defined in config.h,
+;; this file must be loaded each time Emacs is run.
+;; So run the startup code now.
+
+(when (not (fboundp 'dump-emacs))
+  ;; Avoid loading loadup.el a second time!
+  (setq command-line-args (cdr (cdr command-line-args)))
+  (eval top-level))
+
+;;; loadup.el ends here