xemacs-beta: lisp/bytecomp/bytecomp.el comparison

comparison lisp/bytecomp/bytecomp.el @ 0:376386a54a3c r19-14

Import from CVS: tag r19-14

author	cvs
date	Mon, 13 Aug 2007 08:45:50 +0200
parents
children	ac2d302a0011

comparison

equal deleted inserted replaced

--1:000000000000
+:376386a54a3c
+;;; bytecomp.el --- compilation of Lisp code into byte code.
+;;; Copyright (C) 1985-1987, 1991-1994 Free Software Foundation, Inc.
+;; Author: Jamie Zawinski <jwz@lucid.com>
+;;	Hallvard Furuseth <hbf@ulrik.uio.no>
+;; Keywords: internal
+;; Subsequently modified by RMS and others.
+(defconst byte-compile-version (purecopy  "2.25; 1-Sep-94."))
+;; 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, 675 Mass Ave, Cambridge, MA 02139, USA.
+;;; Synched up with: FSF 19.30.
+;;; Commentary:
+;; The Emacs Lisp byte compiler.  This crunches lisp source into a sort
+;; of p-code which takes up less space and can be interpreted faster.
+;; The user entry points are byte-compile-file and byte-recompile-directory.
+;;; Code:
+;;; ========================================================================
+;;; Entry points:
+;;;	byte-recompile-directory, byte-compile-file,
+;;;     batch-byte-compile, batch-byte-recompile-directory,
+;;;	byte-compile, compile-defun,
+;;;	display-call-tree
+;;;  RMS says:
+;;; (byte-compile-buffer and byte-compile-and-load-file were turned off
+;;;  because they are not terribly useful and get in the way of completion.)
+;;; But I'm leaving them. --ben
+;;; This version of the byte compiler has the following improvements:
+;;;  + optimization of compiled code:
+;;;    - removal of unreachable code;
+;;;    - removal of calls to side-effectless functions whose return-value
+;;;      is unused;
+;;;    - compile-time evaluation of safe constant forms, such as (consp nil)
+;;;      and (ash 1 6);
+;;;    - open-coding of literal lambdas;
+;;;    - peephole optimization of emitted code;
+;;;    - trivial functions are left uncompiled for speed.
+;;;  + support for inline functions;
+;;;  + compile-time evaluation of arbitrary expressions;
+;;;  + compile-time warning messages for:
+;;;    - functions being redefined with incompatible arglists;
+;;;    - functions being redefined as macros, or vice-versa;
+;;;    - functions or macros defined multiple times in the same file;
+;;;    - functions being called with the incorrect number of arguments;
+;;;    - functions being called which are not defined globally, in the
+;;;      file, or as autoloads;
+;;;    - assignment and reference of undeclared free variables;
+;;;    - various syntax errors;
+;;;  + correct compilation of nested defuns, defmacros, defvars and defsubsts;
+;;;  + correct compilation of top-level uses of macros;
+;;;  + the ability to generate a histogram of functions called.
+;;; User customization variables:
+;;;
+;;; byte-compile-verbose	Whether to report the function currently being
+;;;				compiled in the minibuffer;
+;;; byte-optimize		Whether to do optimizations; this may be
+;;;				t, nil, 'source, or 'byte;
+;;; byte-optimize-log		Whether to report (in excruciating detail)
+;;;				exactly which optimizations have been made.
+;;;				This may be t, nil, 'source, or 'byte;
+;;; byte-compile-error-on-warn	Whether to stop compilation when a warning is
+;;;				produced;
+;;; byte-compile-delete-errors	Whether the optimizer may delete calls or
+;;;				variable references that are side-effect-free
+;;;				except that they may return an error.
+;;; byte-compile-generate-call-tree	Whether to generate a histogram of
+;;;				function calls.  This can be useful for
+;;;				finding unused functions, as well as simple
+;;;				performance metering.
+;;; byte-compile-warnings	List of warnings to issue, or t.  May contain
+;;;				'free-vars (references to variables not in the
+;;;					    current lexical scope)
+;;;				'unused-vars (non-global variables bound but
+;;;					      not referenced)
+;;;				'unresolved (calls to unknown functions)
+;;;				'callargs  (lambda calls with args that don't
+;;;					    match the lambda's definition)
+;;;				'redefine  (function cell redefined from
+;;;					    a macro to a lambda or vice versa,
+;;;					    or redefined to take other args)
+;;;				'obsolete  (obsolete variables and functions)
+;;; (RMS calls the following option byte-compile-compatibility but
+;;;  our name is better)
+;;; byte-compile-emacs18-compatibility	Whether the compiler should
+;;;				generate .elc files which can be loaded into
+;;;				generic emacs 18.
+;;; emacs-lisp-file-regexp	Regexp for the extension of source-files;
+;;;				see also the function byte-compile-dest-file.
+;;; byte-compile-overwrite-file	If nil, delete old .elc files before saving.
+;;;
+;;; Most of the above parameters can also be set on a file-by-file basis; see
+;;; the documentation of the `byte-compiler-options' macro.
+;;; New Features:
+;;;
+;;;  o	The form `defsubst' is just like `defun', except that the function
+;;;	generated will be open-coded in compiled code which uses it.  This
+;;;	means that no function call will be generated, it will simply be
+;;;	spliced in.  Lisp functions calls are very slow, so this can be a
+;;;	big win.
+;;;
+;;;	You can generally accomplish the same thing with `defmacro', but in
+;;;	that case, the defined procedure can't be used as an argument to
+;;;	mapcar, etc.
+;;;
+;;;  o	You can make a given function be inline even if it has already been
+;;;	defined with `defun' by using the `proclaim-inline' form like so:
+;;;		(proclaim-inline my-function)
+;;;	This is, in fact, exactly what `defsubst' does.  To make a function no
+;;;	longer be inline, you must use `proclaim-notinline'.  Beware that if
+;;;	you define a function with `defsubst' and later redefine it with
+;;;	`defun', it will still be open-coded until you use proclaim-notinline.
+;;;
+;;;  o	You can also open-code one particular call to a function without
+;;;	open-coding all calls.  Use the 'inline' form to do this, like so:
+;;;
+;;;		(inline (foo 1 2 3))	;; `foo' will be open-coded
+;;;	or...
+;;;		(inline			;;  `foo' and `baz' will be
+;;;		 (foo 1 2 3 (bar 5))	;; open-coded, but `bar' will not.
+;;;		 (baz 0))
+;;;
+;;;  o	It is possible to open-code a function in the same file it is defined
+;;;	in without having to load that file before compiling it.  the
+;;;	byte-compiler has been modified to remember function definitions in
+;;;	the compilation environment in the same way that it remembers macro
+;;;	definitions.
+;;;
+;;;  o  Forms like ((lambda ...) ...) are open-coded.
+;;;
+;;;  o  The form `eval-when-compile' is like progn, except that the body
+;;;     is evaluated at compile-time.  When it appears at top-level, this
+;;;     is analogous to the Common Lisp idiom (eval-when (compile) ...).
+;;;     When it does not appear at top-level, it is similar to the
+;;;     Common Lisp #. reader macro (but not in interpreted code).
+;;;
+;;;  o  The form `eval-and-compile' is similar to eval-when-compile, but
+;;;	the whole form is evalled both at compile-time and at run-time.
+;;;
+;;;  o  The command M-x byte-compile-and-load-file does what you'd think.
+;;;
+;;;  o  The command compile-defun is analogous to eval-defun.
+;;;
+;;;  o  If you run byte-compile-file on a filename which is visited in a
+;;;     buffer, and that buffer is modified, you are asked whether you want
+;;;     to save the buffer before compiling.
+;;;
+;;;  o  You can add this to /etc/magic to make file(1) recognise the files
+;;;     generated by this compiler:
+;;;
+;;;	  0	string		;ELC		GNU Emacs Lisp compiled file,
+;;;	  >4	byte		x		version %d
+;;;
+;;; TO DO:
+;;;
+;;;  o	Should implement declarations and proclamations, notably special,
+;;;	unspecial, and ignore.	Do this in such a way as to not break cl.el.
+;;;  o	The bound-but-not-used warnings are not issued for variables whose
+;;;	bindings were established in the arglist, due to the lack of an
+;;;	ignore declaration.  Once ignore exists, this should be turned on.
+;;;  o	Warn about functions and variables defined but not used?
+;;;	Maybe add some kind of `export' declaration for this?
+;;;	(With interactive functions being automatically exported?)
+;;;  o	Any reference to a variable, even one which is a no-op, will cause
+;;;	the warning not to be given.  Possibly we could use the for-effect
+;;;	flag to determine when this reference is useless; possibly more
+;;;	complex flow analysis would be necessary.
+;;;  o  If the optimizer deletes a variable reference, we might be left with
+;;;	a bound-but-not-referenced warning.  Generally this is ok, but not if
+;;;	it's a synergistic result of macroexpansion.  Need some way to note
+;;;	that a varref is being optimized away?  Of course it would be nice to
+;;;	optimize away the binding too, someday, but it's unsafe today.
+;;;  o	Is it time to finally delete all of that egregious v18 compatibility
+;;;	code yet?
+;;;  o	(See byte-optimize.el for the optimization TODO list.)
+(require 'backquote)
+(or (fboundp 'defsubst)
+;; This really ought to be loaded already!
+(load-library "bytecomp-runtime"))
+(eval-when-compile
+(defvar byte-compile-single-version nil
+"If this is true, the choice of emacs version (v18 or v19) byte-codes will
+be hard-coded into bytecomp when it compiles itself.  If the compiler itself
+is compiled with optimization, this causes a speedup.")
+(cond (byte-compile-single-version
+	 (defmacro byte-compile-single-version () t)
+	 (defmacro byte-compile-version-cond (cond) (list 'quote (eval cond))))
+	(t
+	 (defmacro byte-compile-single-version () nil)
+	 (defmacro byte-compile-version-cond (cond) cond)))
+)
+;;; The crud you see scattered through this file of the form
+;;;   (or (and (boundp 'epoch::version) epoch::version)
+;;;	  (string-lessp emacs-version "19"))
+;;; is because the Epoch folks couldn't be bothered to follow the
+;;; normal emacs version numbering convention.
+(defvar emacs-lisp-file-regexp (if (eq system-type 'vax-vms)
+				   (purecopy "\\.EL\\(;[0-9]+\\)?$")
+				 (purecopy "\\.el$"))
+"*Regexp which matches Emacs Lisp source files.
+You may want to redefine `byte-compile-dest-file' if you change this.")
+;; This enables file name handlers such as jka-compr
+;; to remove parts of the file name that should not be copied
+;; through to the output file name.
+(defun byte-compiler-base-file-name (filename)
+(let ((handler (find-file-name-handler filename
+					 'byte-compiler-base-file-name)))
+(if handler
+	(funcall handler 'byte-compiler-base-file-name filename)
+filename)))
+(or (fboundp 'byte-compile-dest-file)
+;; The user may want to redefine this along with emacs-lisp-file-regexp,
+;; so only define it if it is undefined.
+(defun byte-compile-dest-file (filename)
+"Convert an Emacs Lisp source file name to a compiled file name."
+(setq filename (byte-compiler-base-file-name filename))
+(setq filename (file-name-sans-versions filename))
+(cond ((eq system-type 'vax-vms)
+		 (concat (substring filename 0 (string-match ";" filename)) "c"))
+		((string-match emacs-lisp-file-regexp filename)
+		 (concat (substring filename 0 (match-beginning 0)) ".elc"))
+		(t (concat filename ".elc")))))
+;; This can be the 'byte-compile property of any symbol.
+(autoload 'byte-compile-inline-expand "byte-optimize")
+;; This is the entrypoint to the lapcode optimizer pass1.
+(autoload 'byte-optimize-form "byte-optimize")
+;; This is the entrypoint to the lapcode optimizer pass2.
+(autoload 'byte-optimize-lapcode "byte-optimize")
+(autoload 'byte-compile-unfold-lambda "byte-optimize")
+;; This is the entry point to the decompiler, which is used by the
+;; disassembler.  The disassembler just requires 'byte-compile, but
+;; that doesn't define this function, so this seems to be a reasonable
+;; thing to do.
+(autoload 'byte-decompile-bytecode "byte-opt")
+(defvar byte-compile-verbose
+(and (not noninteractive) (> (device-baud-rate) search-slow-speed))
+"*Non-nil means print messages describing progress of byte-compiler.")
+(defvar byte-compile-emacs18-compatibility nil
+"*Non-nil means generate output that can run in Emacs 18.")
+(defvar byte-optimize t
+"*Enables optimization in the byte compiler.
+nil means don't do any optimization.
+t means do all optimizations.
+`source' means do source-level optimizations only.
+`byte' means do code-level optimizations only.")
+(defvar byte-compile-delete-errors t
+"*If non-nil, the optimizer may delete forms that may signal an error.
+This includes variable references and calls to functions such as `car'.")
+;; XEmacs addition
+(defvar byte-compile-new-bytecodes nil
+"This is completely ignored.  It is only around for backwards
+compatibility.")
+;; FSF enables byte-compile-dynamic-docstrings but not byte-compile-dynamic
+;; by default.  This would be a reasonable conservative approach except
+;; for the fact that if you enable either of these, you get incompatible
+;; byte code that can't be read by XEmacs 19.13 or before or FSF 19.28 or
+;; before.
+;;
+;; Therefore, neither is enabled for 19.14.
+(defvar byte-compile-dynamic nil
+"*If non-nil, compile function bodies so they load lazily.
+They are hidden comments in the compiled file, and brought into core when the
+function is called.
+To enable this option, make it a file-local variable
+in the source file you want it to apply to.
+For example, add  -*-byte-compile-dynamic: t;-*- on the first line.
+When this option is true, if you load the compiled file and then move it,
+the functions you loaded will not be able to run.")
+(defvar byte-compile-dynamic-docstrings nil
+"*If non-nil, compile doc strings for lazy access.
+We bury the doc strings of functions and variables
+inside comments in the file, and bring them into core only when they
+are actually needed.
+When this option is true, if you load the compiled file and then move it,
+you won't be able to find the documentation of anything in that file.
+To disable this option for a certain file, make it a file-local variable
+in the source file.  For example, add this to the first line:
+-*-byte-compile-dynamic-docstrings:nil;-*-
+You can also set the variable globally.
+This option is enabled by default because it reduces Emacs memory usage.")
+(defvar byte-optimize-log nil
+"*If true, the byte-compiler will log its optimizations into *Compile-Log*.
+If this is 'source, then only source-level optimizations will be logged.
+If it is 'byte, then only byte-level optimizations will be logged.")
+(defvar byte-compile-error-on-warn nil
+"*If true, the byte-compiler reports warnings with `error'.")
+;; byte-compile-warning-types in FSF.
+(defvar byte-compile-default-warnings
+'(redefine callargs free-vars unresolved unused-vars obsolete)
+"*The warnings used when byte-compile-warnings is t.")
+(defvar byte-compile-warnings t
+"*List of warnings that the compiler should issue (t for the default set).
+Elements of the list may be be:
+free-vars	references to variables not in the current lexical scope.
+unused-vars	references to non-global variables bound but not referenced.
+unresolved	calls to unknown functions.
+callargs	lambda calls with args that don't match the definition.
+redefine	function cell redefined from a macro to a lambda or vice
+		versa, or redefined to take a different number of arguments.
+obsolete	use of an obsolete function or variable.
+The default set is specified by `byte-compile-default-warnings' and
+normally encompasses all possible warnings.
+See also the macro `byte-compiler-options'.")
+(defvar byte-compile-generate-call-tree nil
+"*Non-nil means collect call-graph information when compiling.
+This records functions were called and from where.
+If the value is t, compilation displays the call graph when it finishes.
+If the value is neither t nor nil, compilation asks you whether to display
+the graph.
+The call tree only lists functions called, not macros used. Those functions
+which the byte-code interpreter knows about directly (eq, cons, etc.) are
+not reported.
+The call tree also lists those functions which are not known to be called
+\(that is, to which no calls have been compiled).  Functions which can be
+invoked interactively are excluded from this list.")
+(defconst byte-compile-call-tree nil "Alist of functions and their call tree.
+Each element looks like
+\(FUNCTION CALLERS CALLS\)
+where CALLERS is a list of functions that call FUNCTION, and CALLS
+is a list of functions for which calls were generated while compiling
+FUNCTION.")
+(defvar byte-compile-call-tree-sort 'name
+"*If non-nil, sort the call tree.
+The values `name', `callers', `calls', `calls+callers'
+specify different fields to sort on.")
+(defvar byte-compile-overwrite-file t
+"If nil, old .elc files are deleted before the new is saved, and .elc
+files will have the same modes as the corresponding .el file.  Otherwise,
+existing .elc files will simply be overwritten, and the existing modes
+will not be changed.  If this variable is nil, then an .elc file which
+is a symbolic link will be turned into a normal file, instead of the file
+which the link points to being overwritten.")
+(defvar byte-recompile-directory-ignore-errors-p nil
+"If true, then `byte-recompile-directory' will continue compiling even
+when an error occurs in a file.  This is bound to t by
+`batch-byte-recompile-directory'.")
+(defvar byte-recompile-directory-recursively t
+"*If true, then `byte-recompile-directory' will recurse on subdirectories.")
+(defvar byte-compile-constants nil
+"list of all constants encountered during compilation of this form")
+(defvar byte-compile-variables nil
+"list of all variables encountered during compilation of this form")
+(defvar byte-compile-bound-variables nil
+"Alist of variables bound in the context of the current form,
+that is, the current lexical environment.  This list lives partly
+on the specbind stack.  The cdr of each cell is an integer bitmask.")
+(defconst byte-compile-referenced-bit 1)
+(defconst byte-compile-assigned-bit 2)
+(defconst byte-compile-arglist-bit 4)
+(defconst byte-compile-global-bit 8)
+(defvar byte-compile-free-references)
+(defvar byte-compile-free-assignments)
+(defvar byte-compiler-error-flag)
+(defconst byte-compile-initial-macro-environment
+(purecopy
+'((byte-compiler-options . (lambda (&rest forms)
+				(apply 'byte-compiler-options-handler forms)))
+(eval-when-compile . (lambda (&rest body)
+			    (list 'quote (eval (byte-compile-top-level
+						(cons 'progn body))))))
+(eval-and-compile . (lambda (&rest body)
+			   (eval (cons 'progn body))
+			   (cons 'progn body)))))
+"The default macro-environment passed to macroexpand by the compiler.
+Placing a macro here will cause a macro to have different semantics when
+expanded by the compiler as when expanded by the interpreter.")
+(defvar byte-compile-macro-environment byte-compile-initial-macro-environment
+"Alist of macros defined in the file being compiled.
+Each element looks like (MACRONAME . DEFINITION).  It is
+\(MACRONAME . nil) when a macro is redefined as a function.")
+(defvar byte-compile-function-environment nil
+"Alist of functions defined in the file being compiled.
+This is so we can inline them when necessary.
+Each element looks like (FUNCTIONNAME . DEFINITION).  It is
+\(FUNCTIONNAME . nil) when a function is redefined as a macro.")
+(defvar byte-compile-autoload-environment nil
+"Alist of functions and macros defined by autoload in the file being compiled.
+This is so we can suppress warnings about calls to these functions, even though
+they do not have `real' definitions.
+Each element looks like (FUNCTIONNAME . CALL-TO-AUTOLOAD).")
+(defvar byte-compile-unresolved-functions nil
+"Alist of undefined functions to which calls have been compiled (used for
+warnings when the function is later defined with incorrect args).")
+(defvar byte-compile-file-domain) ; domain of file being compiled
+(defvar byte-compile-tag-number 0)
+(defvar byte-compile-output nil
+"Alist describing contents to put in byte code string.
+Each element is (INDEX . VALUE)")
+(defvar byte-compile-depth 0 "Current depth of execution stack.")
+(defvar byte-compile-maxdepth 0 "Maximum depth of execution stack.")
+;;; The byte codes; this information is duplicated in bytecomp.c
+(defconst byte-code-vector nil
+"An array containing byte-code names indexed by byte-code values.")
+(defconst byte-stack+-info nil
+"An array with the stack adjustment for each byte-code.")
+(defmacro byte-defop (opcode stack-adjust opname &optional docstring)
+;; This is a speed-hack for building the byte-code-vector at compile-time.
+;; We fill in the vector at macroexpand-time, and then after the last call
+;; to byte-defop, we write the vector out as a constant instead of writing
+;; out a bunch of calls to aset.
+;; Actually, we don't fill in the vector itself, because that could make
+;; it problematic to compile big changes to this compiler; we store the
+;; values on its plist, and remove them later in -extrude.
+(let ((v1 (or (get 'byte-code-vector 'tmp-compile-time-value)
+		(put 'byte-code-vector 'tmp-compile-time-value
+		     (make-vector 256 nil))))
+	(v2 (or (get 'byte-stack+-info 'tmp-compile-time-value)
+		(put 'byte-stack+-info 'tmp-compile-time-value
+		     (make-vector 256 nil)))))
+(aset v1 opcode opname)
+(aset v2 opcode stack-adjust))
+(if docstring
+(list 'defconst opname opcode (concat "Byte code opcode " docstring "."))
+(list 'defconst opname opcode)))
+(defmacro byte-extrude-byte-code-vectors ()
+(prog1 (list 'setq 'byte-code-vector
+		     (get 'byte-code-vector 'tmp-compile-time-value)
+		     'byte-stack+-info
+		     (get 'byte-stack+-info 'tmp-compile-time-value))
+;; emacs-18 has no REMPROP.
+(put 'byte-code-vector 'tmp-compile-time-value nil)
+(put 'byte-stack+-info 'tmp-compile-time-value nil)))
+;; unused: 0-7
+;; These opcodes are special in that they pack their argument into the
+;; opcode word.
+;;
+(byte-defop   8  1 byte-varref	"for variable reference")
+(byte-defop  16 -1 byte-varset	"for setting a variable")
+(byte-defop  24 -1 byte-varbind	"for binding a variable")
+(byte-defop  32  0 byte-call	"for calling a function")
+(byte-defop  40  0 byte-unbind	"for unbinding special bindings")
+;; codes 8-47 are consumed by the preceding opcodes
+;; unused: 48-55
+(byte-defop  56 -1 byte-nth)
+(byte-defop  57  0 byte-symbolp)
+(byte-defop  58  0 byte-consp)
+(byte-defop  59  0 byte-stringp)
+(byte-defop  60  0 byte-listp)
+(byte-defop  61 -1 byte-eq)
+(byte-defop  62 -1 byte-memq)
+(byte-defop  63  0 byte-not)
+(byte-defop  64  0 byte-car)
+(byte-defop  65  0 byte-cdr)
+(byte-defop  66 -1 byte-cons)
+(byte-defop  67  0 byte-list1)
+(byte-defop  68 -1 byte-list2)
+(byte-defop  69 -2 byte-list3)
+(byte-defop  70 -3 byte-list4)
+(byte-defop  71  0 byte-length)
+(byte-defop  72 -1 byte-aref)
+(byte-defop  73 -2 byte-aset)
+(byte-defop  74  0 byte-symbol-value)
+(byte-defop  75  0 byte-symbol-function) ; this was commented out
+(byte-defop  76 -1 byte-set)
+(byte-defop  77 -1 byte-fset) ; this was commented out
+(byte-defop  78 -1 byte-get)
+(byte-defop  79 -2 byte-substring)
+(byte-defop  80 -1 byte-concat2)
+(byte-defop  81 -2 byte-concat3)
+(byte-defop  82 -3 byte-concat4)
+(byte-defop  83  0 byte-sub1)
+(byte-defop  84  0 byte-add1)
+(byte-defop  85 -1 byte-eqlsign)
+(byte-defop  86 -1 byte-gtr)
+(byte-defop  87 -1 byte-lss)
+(byte-defop  88 -1 byte-leq)
+(byte-defop  89 -1 byte-geq)
+(byte-defop  90 -1 byte-diff)
+(byte-defop  91  0 byte-negate)
+(byte-defop  92 -1 byte-plus)
+(byte-defop  93 -1 byte-max)
+(byte-defop  94 -1 byte-min)
+(byte-defop  95 -1 byte-mult) ; v19 only
+(byte-defop  96  1 byte-point)
+(byte-defop  97  1 byte-mark-OBSOLETE) ; no longer generated as of v18
+(byte-defop  98  0 byte-goto-char)
+(byte-defop  99  0 byte-insert)
+(byte-defop 100  1 byte-point-max)
+(byte-defop 101  1 byte-point-min)
+(byte-defop 102  0 byte-char-after)
+(byte-defop 103  1 byte-following-char)
+(byte-defop 104  1 byte-preceding-char)
+(byte-defop 105  1 byte-current-column)
+(byte-defop 106  0 byte-indent-to)
+(byte-defop 107  0 byte-scan-buffer-OBSOLETE) ; no longer generated as of v18
+(byte-defop 108  1 byte-eolp)
+(byte-defop 109  1 byte-eobp)
+(byte-defop 110  1 byte-bolp)
+(byte-defop 111  1 byte-bobp)
+(byte-defop 112  1 byte-current-buffer)
+(byte-defop 113  0 byte-set-buffer)
+(byte-defop 114  1 byte-read-char-OBSOLETE)
+(byte-defop 115  0 byte-set-mark-OBSOLETE)
+(byte-defop 116  1 byte-interactive-p)
+;; These ops are new to v19
+(byte-defop 117  0 byte-forward-char)
+(byte-defop 118  0 byte-forward-word)
+(byte-defop 119 -1 byte-skip-chars-forward)
+(byte-defop 120 -1 byte-skip-chars-backward)
+(byte-defop 121  0 byte-forward-line)
+(byte-defop 122  0 byte-char-syntax)
+(byte-defop 123 -1 byte-buffer-substring)
+(byte-defop 124 -1 byte-delete-region)
+(byte-defop 125 -1 byte-narrow-to-region)
+(byte-defop 126  1 byte-widen)
+(byte-defop 127  0 byte-end-of-line)
+;; unused: 128
+;; These store their argument in the next two bytes
+(byte-defop 129  1 byte-constant2
+"for reference to a constant with vector index >= byte-constant-limit")
+(byte-defop 130  0 byte-goto "for unconditional jump")
+(byte-defop 131 -1 byte-goto-if-nil "to pop value and jump if it's nil")
+(byte-defop 132 -1 byte-goto-if-not-nil
+	    "to pop value and jump if it's not nil")
+(byte-defop 133 -1 byte-goto-if-nil-else-pop
+"to examine top-of-stack, jump and don't pop it if it's nil,
+otherwise pop it")
+(byte-defop 134 -1 byte-goto-if-not-nil-else-pop
+"to examine top-of-stack, jump and don't pop it if it's non nil,
+otherwise pop it")
+(byte-defop 135 -1 byte-return "to pop a value and return it from `byte-code'")
+(byte-defop 136 -1 byte-discard "to discard one value from stack")
+(byte-defop 137  1 byte-dup     "to duplicate the top of the stack")
+(byte-defop 138  0 byte-save-excursion
+"to make a binding to record the buffer, point and mark")
+(byte-defop 139  0 byte-save-window-excursion
+"to make a binding to record entire window configuration")
+(byte-defop 140  0 byte-save-restriction
+"to make a binding to record the current buffer clipping restrictions")
+(byte-defop 141 -1 byte-catch
+"for catch.  Takes, on stack, the tag and an expression for the body")
+(byte-defop 142 -1 byte-unwind-protect
+"for unwind-protect.  Takes, on stack, an expression for the unwind-action")
+;; For condition-case.  Takes, on stack, the variable to bind,
+;; an expression for the body, and a list of clauses.
+(byte-defop 143 -2 byte-condition-case)
+;; For entry to with-output-to-temp-buffer.
+;; Takes, on stack, the buffer name.
+;; Binds standard-output and does some other things.
+;; Returns with temp buffer on the stack in place of buffer name.
+(byte-defop 144  0 byte-temp-output-buffer-setup)
+;; For exit from with-output-to-temp-buffer.
+;; Expects the temp buffer on the stack underneath value to return.
+;; Pops them both, then pushes the value back on.
+;; Unbinds standard-output and makes the temp buffer visible.
+(byte-defop 145 -1 byte-temp-output-buffer-show)
+;; these ops are new to v19
+;; To unbind back to the beginning of this frame.
+;; Not used yet, but will be needed for tail-recursion elimination.
+(byte-defop 146  0 byte-unbind-all)
+;; these ops are new to v19
+(byte-defop 147 -2 byte-set-marker)
+(byte-defop 148  0 byte-match-beginning)
+(byte-defop 149  0 byte-match-end)
+(byte-defop 150  0 byte-upcase)
+(byte-defop 151  0 byte-downcase)
+(byte-defop 152 -1 byte-string=)
+(byte-defop 153 -1 byte-string<)
+(byte-defop 154 -1 byte-equal)
+(byte-defop 155 -1 byte-nthcdr)
+(byte-defop 156 -1 byte-elt)
+(byte-defop 157 -1 byte-member)
+(byte-defop 158 -1 byte-assq)
+(byte-defop 159  0 byte-nreverse)
+(byte-defop 160 -1 byte-setcar)
+(byte-defop 161 -1 byte-setcdr)
+(byte-defop 162  0 byte-car-safe)
+(byte-defop 163  0 byte-cdr-safe)
+(byte-defop 164 -1 byte-nconc)
+(byte-defop 165 -1 byte-quo)
+(byte-defop 166 -1 byte-rem)
+(byte-defop 167  0 byte-numberp)
+(byte-defop 168  0 byte-integerp)
+;; unused: 169
+;; These are not present in FSF.
+;;
+;; New to v19.  These store their arg in the next byte.
+(byte-defop 170  0 byte-rel-goto)
+(byte-defop 171 -1 byte-rel-goto-if-nil)
+(byte-defop 172 -1 byte-rel-goto-if-not-nil)
+(byte-defop 173 -1 byte-rel-goto-if-nil-else-pop)
+(byte-defop 174 -1 byte-rel-goto-if-not-nil-else-pop)
+(byte-defop 175 nil byte-listN)
+(byte-defop 176 nil byte-concatN)
+(byte-defop 177 nil byte-insertN)
+;; unused: 178-191
+(byte-defop 192  1 byte-constant	"for reference to a constant")
+;; codes 193-255 are consumed by byte-constant.
+(defconst byte-constant-limit 64
+"Exclusive maximum index usable in the `byte-constant' opcode.")
+(defconst byte-goto-ops (purecopy
+			 '(byte-goto byte-goto-if-nil byte-goto-if-not-nil
+			   byte-goto-if-nil-else-pop
+			   byte-goto-if-not-nil-else-pop))
+"List of byte-codes whose offset is a pc.")
+(defconst byte-goto-always-pop-ops
+(purecopy '(byte-goto-if-nil byte-goto-if-not-nil)))
+(defconst byte-rel-goto-ops
+(purecopy '(byte-rel-goto byte-rel-goto-if-nil byte-rel-goto-if-not-nil
+	      byte-rel-goto-if-nil-else-pop byte-rel-goto-if-not-nil-else-pop))
+"byte-codes for relative jumps.")
+(byte-extrude-byte-code-vectors)
+;;; lapcode generator
+;;;
+;;; the byte-compiler now does source -> lapcode -> bytecode instead of
+;;; source -> bytecode, because it's a lot easier to make optimizations
+;;; on lapcode than on bytecode.
+;;;
+;;; Elements of the lapcode list are of the form (<instruction> . <parameter>)
+;;; where instruction is a symbol naming a byte-code instruction,
+;;; and parameter is an argument to that instruction, if any.
+;;;
+;;; The instruction can be the pseudo-op TAG, which means that this position
+;;; in the instruction stream is a target of a goto.  (car PARAMETER) will be
+;;; the PC for this location, and the whole instruction "(TAG pc)" will be the
+;;; parameter for some goto op.
+;;;
+;;; If the operation is varbind, varref, varset or push-constant, then the
+;;; parameter is (variable/constant . index_in_constant_vector).
+;;;
+;;; First, the source code is macroexpanded and optimized in various ways.
+;;; Then the resultant code is compiled into lapcode.  Another set of
+;;; optimizations are then run over the lapcode.  Then the variables and
+;;; constants referenced by the lapcode are collected and placed in the
+;;; constants-vector.  (This happens now so that variables referenced by dead
+;;; code don't consume space.)  And finally, the lapcode is transformed into
+;;; compacted byte-code.
+;;;
+;;; A distinction is made between variables and constants because the variable-
+;;; referencing instructions are more sensitive to the variables being near the
+;;; front of the constants-vector than the constant-referencing instructions.
+;;; Also, this lets us notice references to free variables.
+(defun byte-compile-lapcode (lap)
+"Turns lapcode into bytecode.  The lapcode is destroyed."
+;; Lapcode modifications: changes the ID of a tag to be the tag's PC.
+(let ((pc 0)			; Program counter
+	op off			; Operation & offset
+	(bytes '())		; Put the output bytes here
+	(patchlist nil)		; List of tags and goto's to patch
+	rest rel tmp)
+(while lap
+(setq op (car (car lap))
+	    off (cdr (car lap)))
+(cond ((not (symbolp op))
+	     (error "Non-symbolic opcode `%s'" op))
+	    ((eq op 'TAG)
+	     (setcar off pc)
+	     (setq patchlist (cons off patchlist)))
+	    ((memq op byte-goto-ops)
+	     (setq pc (+ pc 3))
+	     (setq bytes (cons (cons pc (cdr off))
+			       (cons nil
+				     (cons (symbol-value op) bytes))))
+	     (setq patchlist (cons bytes patchlist)))
+	    (t
+	     (setq bytes
+		   (cond ((cond ((consp off)
+				 ;; Variable or constant reference
+				 (setq off (cdr off))
+				 (eq op 'byte-constant)))
+			  (cond ((< off byte-constant-limit)
+				 (setq pc (1+ pc))
+				 (cons (+ byte-constant off) bytes))
+				(t
+				 (setq pc (+ 3 pc))
+				 (cons (lsh off -8)
+				       (cons (logand off 255)
+					     (cons byte-constant2 bytes))))))
+			 ((<= byte-listN (symbol-value op))
+			  (setq pc (+ 2 pc))
+			  (cons off (cons (symbol-value op) bytes)))
+			 ((< off 6)
+			  (setq pc (1+ pc))
+			  (cons (+ (symbol-value op) off) bytes))
+			 ((< off 256)
+			  (setq pc (+ 2 pc))
+			  (cons off (cons (+ (symbol-value op) 6) bytes)))
+			 (t
+			  (setq pc (+ 3 pc))
+			  (cons (lsh off -8)
+				(cons (logand off 255)
+				      (cons (+ (symbol-value op) 7)
+					    bytes))))))))
+(setq lap (cdr lap)))
+;;(if (not (= pc (length bytes)))
+;;    (error "Compiler error: pc mismatch - %s %s" pc (length bytes)))
+(cond ((not (byte-compile-version-cond byte-compile-emacs18-compatibility))
+	   ;; Make relative jumps
+	   (setq patchlist (nreverse patchlist))
+	   (while (progn
+		    (setq off 0)	; PC change because of deleted bytes
+		    (setq rest patchlist)
+		    (while rest
+		      (setq tmp (car rest))
+		      (and (consp (car tmp)) ; Jump
+			   (prog1 (null (nth 1 tmp)) ; Absolute jump
+			     (setq tmp (car tmp)))
+			   (progn
+			     (setq rel (- (car (cdr tmp)) (car tmp)))
+			     (and (<= -129 rel) (< rel 128)))
+			   (progn
+			     ;; Convert to relative jump.
+			     (setcdr (car rest) (cdr (cdr (car rest))))
+			     (setcar (cdr (car rest))
+				     (+ (car (cdr (car rest)))
+					(- byte-rel-goto byte-goto)))
+			     (setq off (1- off))))
+		      (setcar tmp (+ (car tmp) off)) ; Adjust PC
+		      (setq rest (cdr rest)))
+		    ;; If optimizing, repeat until no change.
+		    (and byte-optimize
+			 (not (zerop off)))))))
+;; Patch PC into jumps
+(let (bytes)
+(while patchlist
+	(setq bytes (car patchlist))
+	(cond ((atom (car bytes)))	; Tag
+	      ((nth 1 bytes)		; Relative jump
+	       (setcar bytes (+ (- (car (cdr (car bytes))) (car (car bytes)))
+				128)))
+	      (t			; Absolute jump
+	       (setq pc (car (cdr (car bytes))))	; Pick PC from tag
+	       (setcar (cdr bytes) (logand pc 255))
+	       (setcar bytes (lsh pc -8))))
+	(setq patchlist (cdr patchlist))))
+(concat (nreverse bytes))))
+;;; byte compiler messages
+(defvar byte-compile-current-form nil)
+(defvar byte-compile-current-file nil)
+(defvar byte-compile-dest-file nil)
+(defmacro byte-compile-log (format-string &rest args)
+(list 'and
+	'byte-optimize
+	'(memq byte-optimize-log '(t source))
+	(list 'let '((print-escape-newlines t)
+		     (print-level 4)
+		     (print-length 4))
+	      (list 'byte-compile-log-1
+		    (cons 'format
+		      (cons format-string
+			(mapcar
+			 '(lambda (x)
+			    (if (symbolp x) (list 'prin1-to-string x) x))
+			 args)))))))
+(defconst byte-compile-last-warned-form nil)
+;; Log a message STRING in *Compile-Log*.
+;; Also log the current function and file if not already done.
+(defun byte-compile-log-1 (string &optional fill)
+(let ((this-form (or byte-compile-current-form "toplevel forms")))
+(cond
+(noninteractive
+(if (or byte-compile-current-file
+	      (and byte-compile-last-warned-form
+		   (not (eq this-form byte-compile-last-warned-form))))
+	  (message
+	   (format "While compiling %s%s:"
+		   this-form
+		   (if byte-compile-current-file
+		       (if (stringp byte-compile-current-file)
+			   (concat " in file " byte-compile-current-file)
+			 (concat " in buffer "
+				 (buffer-name byte-compile-current-file)))
+		     ""))))
+(message "  %s" string))
+(t
+(save-excursion
+	(set-buffer (get-buffer-create "*Compile-Log*"))
+	(goto-char (point-max))
+	(cond ((or byte-compile-current-file
+		   (and byte-compile-last-warned-form
+			(not (eq this-form byte-compile-last-warned-form))))
+	       (if byte-compile-current-file
+		   (insert "\n\^L\n" (current-time-string) "\n"))
+	       (insert "While compiling "
+		       (if (stringp this-form) this-form
+			 (format "%s" this-form)))
+	       (if byte-compile-current-file
+		   (if (stringp byte-compile-current-file)
+		       (insert " in file " byte-compile-current-file)
+		     (insert " in buffer "
+			     (buffer-name byte-compile-current-file))))
+	       (insert ":\n")))
+	(insert "  " string "\n")
+	(if (and fill (not (string-match "\n" string)))
+	    (let ((fill-prefix "     ")
+		  (fill-column 78))
+	      (fill-paragraph nil)))
+	)))
+(setq byte-compile-current-file nil
+	  byte-compile-last-warned-form this-form)))
+;; Log the start of a file in *Compile-Log*, and mark it as done.
+;; But do nothing in batch mode.
+(defun byte-compile-log-file ()
+(and byte-compile-current-file (not noninteractive)
+(save-excursion
+	 (set-buffer (get-buffer-create "*Compile-Log*"))
+	 (goto-char (point-max))
+	 (insert "\n\^L\nCompiling "
+		 (if (stringp byte-compile-current-file)
+		     (concat "file " byte-compile-current-file)
+		   (concat "buffer " (buffer-name byte-compile-current-file)))
+		 " at " (current-time-string) "\n")
+	 (setq byte-compile-current-file nil))))
+(defun byte-compile-warn (format &rest args)
+(setq format (apply 'format format args))
+(if byte-compile-error-on-warn
+(error "%s" format)		; byte-compile-file catches and logs it
+(byte-compile-log-1 (concat "** " format) t)
+;;; RMS says:
+;;; It is useless to flash warnings too fast to be read.
+;;; Besides, they will all be shown at the end.
+;;; and comments out the next two lines.
+(or noninteractive  ; already written on stdout.
+	(message "Warning: %s" format))))
+;;; This function should be used to report errors that have halted
+;;; compilation of the current file.
+(defun byte-compile-report-error (error-info)
+(setq byte-compiler-error-flag t)
+(byte-compile-log-1
+(concat "!! "
+	   (format (if (cdr error-info) "%s (%s)" "%s")
+		   (get (car error-info) 'error-message)
+		   (prin1-to-string (cdr error-info))))))
+;;; Used by make-obsolete.
+(defun byte-compile-obsolete (form)
+(let ((new (get (car form) 'byte-obsolete-info)))
+(if (memq 'obsolete byte-compile-warnings)
+	(byte-compile-warn "%s is an obsolete function; %s" (car form)
+			   (if (stringp (car new))
+			       (car new)
+			     (format "use %s instead." (car new)))))
+(funcall (or (cdr new) 'byte-compile-normal-call) form)))
+;; Compiler options
+(defconst byte-compiler-legal-options
+'((optimize byte-optimize (t nil source byte) val)
+(file-format byte-compile-emacs18-compatibility (emacs18 emacs19)
+		 (eq val 'emacs18))
+(delete-errors byte-compile-delete-errors (t nil) val)
+(verbose byte-compile-verbose (t nil) val)
+(new-bytecodes byte-compile-new-bytecodes (t nil) val)
+(warnings byte-compile-warnings
+	      ((callargs redefine free-vars unused-vars unresolved))
+	      val)))
+;; XEmacs addition
+(defconst byte-compiler-obsolete-options
+'((new-bytecodes t)))
+;; Inhibit v18/v19 selectors if the version is hardcoded.
+;; #### This should print a warning if the user tries to change something
+;; than can't be changed because the running compiler doesn't support it.
+(cond
+((byte-compile-single-version)
+(setcar (cdr (cdr (assq 'file-format byte-compiler-legal-options)))
+	  (if (byte-compile-version-cond byte-compile-emacs18-compatibility)
+	      '(emacs18) '(emacs19)))))
+;; now we can copy it.
+(setq byte-compiler-legal-options (purecopy byte-compiler-legal-options))
+(defun byte-compiler-options-handler (&rest args)
+(let (key val desc choices)
+(while args
+(if (or (atom (car args)) (nthcdr 2 (car args)) (null (cdr (car args))))
+	  (error "malformed byte-compiler-option %s" (car args)))
+(setq key (car (car args))
+	    val (car (cdr (car args)))
+	    desc (assq key byte-compiler-legal-options))
+(or desc
+	  (error "unknown byte-compiler option %s" key))
+(if (assq key byte-compiler-obsolete-options)
+	  (byte-compile-warn "%s is an obsolete byte-compiler option." key))
+(setq choices (nth 2 desc))
+(if (consp (car choices))
+	  (let* (this
+		 (handler 'cons)
+		 (var (nth 1 desc))
+		 (ret (and (memq (car val) '(+ -))
+			   (copy-sequence (if (eq t (symbol-value var))
+					      (car choices)
+					    (symbol-value var))))))
+	    (setq choices (car  choices))
+	    (while val
+	      (setq this (car val))
+	      (cond ((memq this choices)
+		     (setq ret (funcall handler this ret)))
+		    ((eq this '+) (setq handler 'cons))
+		    ((eq this '-) (setq handler 'delq))
+		    ((error "%s only accepts %s." key choices)))
+	      (setq val (cdr val)))
+	    (set (nth 1 desc) ret))
+	(or (memq val choices)
+	    (error "%s must be one of %s." key choices))
+	(set (nth 1 desc) (eval (nth 3 desc))))
+(setq args (cdr args)))
+nil))
+;;; sanity-checking arglists
+(defun byte-compile-fdefinition (name macro-p)
+(let* ((list (if (memq macro-p '(nil subr))
+		   byte-compile-function-environment
+		 byte-compile-macro-environment))
+	 (env (cdr (assq name list))))
+(or env
+	(let ((fn name))
+	  (while (and (symbolp fn)
+		      (fboundp fn)
+		      (or (symbolp (symbol-function fn))
+			  (consp (symbol-function fn))
+			  (and (not macro-p)
+			       (compiled-function-p (symbol-function fn)))
+			  (and (eq macro-p 'subr) (subrp fn))))
+	    (setq fn (symbol-function fn)))
+	  (if (or (and (not macro-p) (compiled-function-p fn))
+		  (and (eq macro-p 'subr) (subrp fn)))
+	      fn
+	    (and (consp fn)
+		 (not (eq macro-p 'subr))
+		 (if (eq 'macro (car fn))
+		     (cdr fn)
+		   (if macro-p
+		       nil
+		     (if (eq 'autoload (car fn))
+			 nil
+		       fn)))))))))
+(defun byte-compile-arglist-signature (arglist)
+(let ((args 0)
+	opts
+	restp)
+(while arglist
+(cond ((eq (car arglist) '&optional)
+	     (or opts (setq opts 0)))
+	    ((eq (car arglist) '&rest)
+	     (if (cdr arglist)
+		 (setq restp t
+		       arglist nil)))
+	    (t
+	     (if opts
+		 (setq opts (1+ opts))
+		 (setq args (1+ args)))))
+(setq arglist (cdr arglist)))
+(cons args (if restp nil (if opts (+ args opts) args)))))
+(defun byte-compile-arglist-signatures-congruent-p (old new)
+(not (or
+	 (> (car new) (car old))  ; requires more args now
+	 (and (null (cdr old))    ; tooks rest-args, doesn't any more
+	      (cdr new))
+	 (and (cdr new) (cdr old) ; can't take as many args now
+	      (< (cdr new) (cdr old)))
+	 )))
+(defun byte-compile-arglist-signature-string (signature)
+(cond ((null (cdr signature))
+	 (format "%d+" (car signature)))
+	((= (car signature) (cdr signature))
+	 (format "%d" (car signature)))
+	(t (format "%d-%d" (car signature) (cdr signature)))))
+;; Warn if the form is calling a function with the wrong number of arguments.
+(defun byte-compile-callargs-warn (form)
+(let* ((def (or (byte-compile-fdefinition (car form) nil)
+		  (byte-compile-fdefinition (car form) t)))
+	 (sig (and def (byte-compile-arglist-signature
+			 (if (eq 'lambda (car-safe def))
+			     (nth 1 def)
+			   (if (compiled-function-p def)
+			       (compiled-function-arglist def)
+			     '(&rest def))))))
+	 (ncall (length (cdr form))))
+(if (and (null def)
+	     (fboundp 'subr-min-args)
+	     (setq def (byte-compile-fdefinition (car form) 'subr)))
+	(setq sig (cons (subr-min-args def) (subr-max-args def))))
+(if sig
+	(if (or (< ncall (car sig))
+		(and (cdr sig) (> ncall (cdr sig))))
+	    (byte-compile-warn
+	      "%s called with %d argument%s, but %s %s"
+	      (car form) ncall
+	      (if (= 1 ncall) "" "s")
+	      (if (< ncall (car sig))
+		  "requires"
+		  "accepts only")
+	      (byte-compile-arglist-signature-string sig)))
+(or (fboundp (car form)) ; might be a subr or autoload.
+	  ;; ## this doesn't work with recursion.
+	  (eq (car form) byte-compile-current-form)
+	  ;; It's a currently-undefined function.
+	  ;; Remember number of args in call.
+	  (let ((cons (assq (car form) byte-compile-unresolved-functions))
+		(n (length (cdr form))))
+	    (if cons
+		(or (memq n (cdr cons))
+		    (setcdr cons (cons n (cdr cons))))
+		(setq byte-compile-unresolved-functions
+		      (cons (list (car form) n)
+			    byte-compile-unresolved-functions))))))))
+;; Warn if the function or macro is being redefined with a different
+;; number of arguments.
+(defun byte-compile-arglist-warn (form macrop)
+(let ((old (byte-compile-fdefinition (nth 1 form) macrop)))
+(if old
+	(let ((sig1 (byte-compile-arglist-signature
+		      (if (eq 'lambda (car-safe old))
+			  (nth 1 old)
+			(if (compiled-function-p old)
+			    (compiled-function-arglist old)
+			  '(&rest def)))))
+	      (sig2 (byte-compile-arglist-signature (nth 2 form))))
+	  (or (byte-compile-arglist-signatures-congruent-p sig1 sig2)
+	      (byte-compile-warn "%s %s used to take %s %s, now takes %s"
+		(if (eq (car form) 'defun) "function" "macro")
+		(nth 1 form)
+		(byte-compile-arglist-signature-string sig1)
+		(if (equal sig1 '(1 . 1)) "argument" "arguments")
+		(byte-compile-arglist-signature-string sig2))))
+;; This is the first definition.  See if previous calls are compatible.
+(let ((calls (assq (nth 1 form) byte-compile-unresolved-functions))
+	    nums sig min max)
+	(if calls
+	    (progn
+	      (setq sig (byte-compile-arglist-signature (nth 2 form))
+		    nums (sort (copy-sequence (cdr calls)) (function <))
+		    min (car nums)
+		    max (car (nreverse nums)))
+	      (if (or (< min (car sig))
+		      (and (cdr sig) (> max (cdr sig))))
+		  (byte-compile-warn
+	    "%s being defined to take %s%s, but was previously called with %s"
+	            (nth 1 form)
+		    (byte-compile-arglist-signature-string sig)
+		    (if (equal sig '(1 . 1)) " arg" " args")
+		    (byte-compile-arglist-signature-string (cons min max))))
+	      (setq byte-compile-unresolved-functions
+		    (delq calls byte-compile-unresolved-functions)))))
+)))
+;; If we have compiled any calls to functions which are not known to be
+;; defined, issue a warning enumerating them.
+;; `unresolved' in the list `byte-compile-warnings' disables this.
+(defun byte-compile-warn-about-unresolved-functions (&optional msg)
+(if (memq 'unresolved byte-compile-warnings)
+(let ((byte-compile-current-form (or msg "the end of the data")))
+;; First delete the autoloads from the list.
+(if byte-compile-autoload-environment
+	 (let ((rest byte-compile-unresolved-functions))
+	   (while rest
+	     (if (assq (car (car rest)) byte-compile-autoload-environment)
+		 (setq byte-compile-unresolved-functions
+		       (delq (car rest) byte-compile-unresolved-functions)))
+	     (setq rest (cdr rest)))))
+;; Now warn.
+(if (cdr byte-compile-unresolved-functions)
+	 (let* ((str "The following functions are not known to be defined: ")
+		(L (+ (length str) 5))
+		(rest (reverse byte-compile-unresolved-functions))
+		s)
+	   (while rest
+	     (setq s (symbol-name (car (car rest)))
+		   L (+ L (length s) 2)
+		   rest (cdr rest))
+	     (if (<= L (1- fill-column))
+		 (setq str (concat str " " s (and rest ",")))
+	       (setq str (concat str "\n    " s (and rest ","))
+		     L (+ (length s) 4))))
+	   (byte-compile-warn "%s" str))
+(if byte-compile-unresolved-functions
+	   (byte-compile-warn "the function %s is not known to be defined."
+	    (car (car byte-compile-unresolved-functions)))))))
+nil)
+(defun byte-compile-defvar-p (var)
+;; Whether the byte compiler thinks that nonexical references to this
+;; variable are ok.
+(or (globally-boundp var)
+(let ((rest byte-compile-bound-variables))
+	(while (and rest var)
+	  (if (and (eq var (car-safe (car rest)))
+		   (not (= 0 (logand (cdr (car rest))
+				     byte-compile-global-bit))))
+	      (setq var nil))
+	  (setq rest (cdr rest)))
+	;; if var is nil at this point, it's a defvar in this file.
+	(not var))))
+;;; If we have compiled bindings of variables which have no referents, warn.
+(defun byte-compile-warn-about-unused-variables ()
+(let ((rest byte-compile-bound-variables)
+	(unreferenced '())
+	cell)
+(while (and rest
+		;; only warn about variables whose lifetime is now ending,
+		;; that is, variables from the lexical scope that is now
+		;; terminating.  (Think nested lets.)
+		(not (eq (car rest) 'new-scope)))
+(setq cell (car rest))
+(if (and (= 0 (logand byte-compile-referenced-bit (cdr cell)))
+	       ;; Don't warn about declared-but-unused arguments, for two
+	       ;; reasons: first, the arglist structure might be imposed by
+	       ;; external forces, and we don't have (declare (ignore x)) yet;
+	       ;; and second, inline expansion produces forms like
+	       ;;   ((lambda (arg) (byte-code "..." [arg])) x)
+	       ;; which we can't (ok, well, don't) recognise as containing a
+	       ;; reference to arg, so every inline expansion would generate
+	       ;; a warning.  (If we had `ignore' then inline expansion could
+	       ;; emit an ignore declaration.)
+	       (= 0 (logand byte-compile-arglist-bit (cdr cell)))
+	       ;; Don't warn about defvars because this is a legitimate special
+	       ;; binding.
+	       (not (byte-compile-defvar-p (car cell))))
+	  (setq unreferenced (cons (car cell) unreferenced)))
+(setq rest (cdr rest)))
+(setq unreferenced (nreverse unreferenced))
+(while unreferenced
+(byte-compile-warn
+(format "variable %s bound but not referenced" (car unreferenced)))
+(setq unreferenced (cdr unreferenced)))))
+(defmacro byte-compile-constp (form)
+;; Returns non-nil if FORM is a constant.
+(` (cond ((consp (, form)) (eq (car (, form)) 'quote))
+	   ((not (symbolp (, form))))
+	   ((keywordp (, form)))
+	   ((memq (, form) '(nil t))))))
+(defmacro byte-compile-close-variables (&rest body)
+(cons 'let
+	(cons '(;;
+		;; Close over these variables to encapsulate the
+		;; compilation state
+		;;
+		(byte-compile-macro-environment
+		 ;; Copy it because the compiler may patch into the
+		 ;; macroenvironment.
+		 (copy-alist byte-compile-initial-macro-environment))
+		(byte-compile-function-environment nil)
+		(byte-compile-autoload-environment nil)
+		(byte-compile-unresolved-functions nil)
+		(byte-compile-bound-variables nil)
+		(byte-compile-free-references nil)
+		(byte-compile-free-assignments nil)
+		;;
+		;; Close over these variables so that `byte-compiler-options'
+		;; can change them on a per-file basis.
+		;;
+		(byte-compile-verbose byte-compile-verbose)
+		(byte-optimize byte-optimize)
+		(byte-compile-emacs18-compatibility
+		 byte-compile-emacs18-compatibility)
+		(byte-compile-dynamic byte-compile-dynamic)
+		(byte-compile-dynamic-docstrings
+		 byte-compile-dynamic-docstrings)
+		(byte-compile-warnings (if (eq byte-compile-warnings t)
+					   byte-compile-default-warnings
+					 byte-compile-warnings))
+		(byte-compile-file-domain nil)
+		)
+	      (list
+	       (list 'prog1 (cons 'progn body)
+		     '(if (memq 'unused-vars byte-compile-warnings)
+			  ;; done compiling in this scope, warn now.
+			  (byte-compile-warn-about-unused-variables)))))))
+(defvar byte-compile-warnings-point-max nil)
+(defmacro displaying-byte-compile-warnings (&rest body)
+(list 'let
+	'((byte-compile-warnings-point-max byte-compile-warnings-point-max))
+;; Log the file name.
+'(byte-compile-log-file)
+;; Record how much is logged now.
+;; We will display the log buffer if anything more is logged
+;; before the end of BODY.
+'(or byte-compile-warnings-point-max
+	  (save-excursion
+	    (set-buffer (get-buffer-create "*Compile-Log*"))
+	    (setq byte-compile-warnings-point-max (point-max))))
+(list 'unwind-protect
+	   (list 'condition-case 'error-info
+		 (cons 'progn body)
+	       '(error
+		 (byte-compile-report-error error-info)))
+'(save-excursion
+	  ;; If there were compilation warnings, display them.
+	  (set-buffer "*Compile-Log*")
+	  (if (= byte-compile-warnings-point-max (point-max))
+	      nil
+	    (select-window
+	     (prog1 (selected-window)
+	       (select-window (display-buffer (current-buffer)))
+	       (goto-char byte-compile-warnings-point-max)
+	       (recenter 1))))))))
+;;;###autoload
+(defun byte-force-recompile (directory)
+"Recompile every `.el' file in DIRECTORY that already has a `.elc' file.
+Files in subdirectories of DIRECTORY are processed also."
+(interactive "DByte force recompile (directory): ")
+(byte-recompile-directory directory nil t))
+;;;###autoload
+(defun byte-recompile-directory (directory &optional arg norecursion force)
+"Recompile every `.el' file in DIRECTORY that needs recompilation.
+This is if a `.elc' file exists but is older than the `.el' file.
+Files in subdirectories of DIRECTORY are processed also unless argument
+NORECURSION is non-nil.
+If the `.elc' file does not exist, normally the `.el' file is *not* compiled.
+But a prefix argument (optional second arg) means ask user,
+for each such `.el' file, whether to compile it.  Prefix argument 0 means
+don't ask and compile the file anyway.
+A nonzero prefix argument also means ask about each subdirectory.
+If the fourth argument FORCE is non-nil,
+recompile every `.el' file that already has a `.elc' file."
+(interactive "DByte recompile directory: \nP")
+(if arg
+(setq arg (prefix-numeric-value arg)))
+(if noninteractive
+nil
+(save-some-buffers)
+(redraw-modeline))
+(let ((directories (list (expand-file-name directory)))
+	(file-count 0)
+	(dir-count 0)
+	last-dir)
+(displaying-byte-compile-warnings
+(while directories
+(setq directory (file-name-as-directory (car directories)))
+(or noninteractive (message "Checking %s..." directory))
+(let ((files (directory-files directory))
+	     source dest)
+	 (while files
+	   (setq source (expand-file-name (car files) directory))
+	   (if (and (not (member (car files) '("." ".." "RCS" "CVS" "SCCS")))
+		    ;; Stay away from directory back-links, etc:
+		    (not (file-symlink-p source))
+		    (file-directory-p source)
+		    byte-recompile-directory-recursively)
+	       ;; This file is a subdirectory.  Handle them differently.
+	       (if (or (null arg)
+		       (eq arg 0)
+		       (y-or-n-p (concat "Check " source "? ")))
+		   (setq directories
+			 (nconc directories (list source))))
+	     ;; It is an ordinary file.  Decide whether to compile it.
+	     (if (and (string-match emacs-lisp-file-regexp source)
+		      (not (auto-save-file-name-p source))
+		      (setq dest (byte-compile-dest-file source))
+		      (if (file-exists-p dest)
+			  ;; File was already compiled.
+			  (or force (file-newer-than-file-p source dest))
+			;; No compiled file exists yet.
+			(and arg
+			     (or (eq 0 arg)
+				 (y-or-n-p (concat "Compile " source "? "))))))
+		 (progn ;(if (and noninteractive (not byte-compile-verbose))
+			;    (message "Compiling %s..." source))
+		        ; we do this in byte-compile-file.
+		        (if byte-recompile-directory-ignore-errors-p
+			     (batch-byte-compile-1 source)
+			  (byte-compile-file source))
+			(or noninteractive
+			    (message "Checking %s..." directory))
+			(setq file-count (1+ file-count))
+			(if (not (eq last-dir directory))
+			    (setq last-dir directory
+				  dir-count (1+ dir-count)))
+			)))
+	   (setq files (cdr files))))
+(setq directories (cdr directories))))
+(message "Done (Total of %d file%s compiled%s)"
+	     file-count (if (= file-count 1) "" "s")
+	     (if (> dir-count 1) (format " in %d directories" dir-count) ""))))
+;;;###autoload
+(defun byte-recompile-file (filename &optional force)
+"Recompile a file of Lisp code named FILENAME if it needs recompilation.
+This is if the `.elc' file exists but is older than the `.el' file.
+If the `.elc' file does not exist, normally the `.el' file is *not*
+compiled.  But a prefix argument (optional second arg) means ask user
+whether to compile it.  Prefix argument 0 don't ask and recompile anyway."
+(interactive "fByte recompile file: \nP")
+(let ((dest))
+(if (and (string-match emacs-lisp-file-regexp filename)
+	     (not (auto-save-file-name-p filename))
+	     (setq dest (byte-compile-dest-file filename))
+	     (if (file-exists-p dest)
+		 (file-newer-than-file-p filename dest)
+	       (and force
+		    (or (eq 0 force)
+			(y-or-n-p (concat "Compile " filename "? "))))))
+	(byte-compile-file filename))))
+(defvar kanji-flag nil)
+;;;###autoload
+(defun byte-compile-file (filename &optional load)
+"Compile a file of Lisp code named FILENAME into a file of byte code.
+The output file's name is made by appending `c' to the end of FILENAME.
+With prefix arg (noninteractively: 2nd arg), load the file after compiling."
+;;  (interactive "fByte compile file: \nP")
+(interactive
+(let ((file buffer-file-name)
+	 (file-name nil)
+	 (file-dir nil))
+(and file
+	  (eq (cdr (assq 'major-mode (buffer-local-variables)))
+	      'emacs-lisp-mode)
+	  (setq file-name (file-name-nondirectory file)
+		file-dir (file-name-directory file)))
+(list (read-file-name (if current-prefix-arg
+			       "Byte compile and load file: "
+			     "Byte compile file: ")
+			   file-dir nil nil file-name)
+	   current-prefix-arg)))
+;; Expand now so we get the current buffer's defaults
+(setq filename (expand-file-name filename))
+;; If we're compiling a file that's in a buffer and is modified, offer
+;; to save it first.
+(or noninteractive
+(let ((b (get-file-buffer (expand-file-name filename))))
+	(if (and b (buffer-modified-p b)
+		 (y-or-n-p (format "save buffer %s first? " (buffer-name b))))
+	    (save-excursion (set-buffer b) (save-buffer)))))
+(if (or noninteractive byte-compile-verbose) ; XEmacs change
+(message "Compiling %s..." filename))
+(let (;;(byte-compile-current-file (file-name-nondirectory filename))
+	(byte-compile-current-file filename)
+	target-file input-buffer output-buffer
+	byte-compile-dest-file)
+(setq target-file (byte-compile-dest-file filename))
+(setq byte-compile-dest-file target-file)
+(save-excursion
+(setq input-buffer (get-buffer-create " *Compiler Input*"))
+(set-buffer input-buffer)
+(erase-buffer)
+(insert-file-contents filename)
+;; Run hooks including the uncompression hook.
+;; If they change the file name, then change it for the output also.
+(let ((buffer-file-name filename)
+	    (default-major-mode 'emacs-lisp-mode)
+	    (enable-local-eval nil))
+(normal-mode)
+(setq filename buffer-file-name)))
+(setq byte-compiler-error-flag nil)
+;; It is important that input-buffer not be current at this call,
+;; so that the value of point set in input-buffer
+;; within byte-compile-from-buffer lingers in that buffer.
+(setq output-buffer (byte-compile-from-buffer input-buffer filename))
+(if byte-compiler-error-flag
+	nil
+(if byte-compile-verbose
+	  (message "Compiling %s...done" filename))
+(kill-buffer input-buffer)
+(save-excursion
+	(set-buffer output-buffer)
+	(goto-char (point-max))
+	(insert "\n")			; aaah, unix.
+	(let ((vms-stmlf-recfm t))
+	  (setq target-file (byte-compile-dest-file filename))
+	  (or byte-compile-overwrite-file
+	      (condition-case ()
+		  (delete-file target-file)
+		(error nil)))
+	  (if (file-writable-p target-file)
+	      (let ((kanji-flag nil))	; for nemacs, from Nakagawa Takayuki
+		(if (or (eq system-type 'ms-dos) (eq system-type 'windows-nt))
+		    (setq buffer-file-type t))
+		(write-region 1 (point-max) target-file))
+	    ;; This is just to give a better error message than write-region
+	    (signal 'file-error
+		    (list "Opening output file"
+			  (if (file-exists-p target-file)
+			      "cannot overwrite file"
+			    "directory not writable or nonexistent")
+			  target-file)))
+	  (or byte-compile-overwrite-file
+	      (condition-case ()
+		  (set-file-modes target-file (file-modes filename))
+		(error nil))))
+	(kill-buffer (current-buffer)))
+(if (and byte-compile-generate-call-tree
+	       (or (eq t byte-compile-generate-call-tree)
+		   (y-or-n-p (format "Report call tree for %s? " filename))))
+	  (save-excursion
+	    (display-call-tree filename)))
+(if load
+	  (load target-file))
+t)))
+;; RMS comments the next two out.
+(defun byte-compile-and-load-file (&optional filename)
+"Compile a file of Lisp code named FILENAME into a file of byte code,
+and then load it.  The output file's name is made by appending \"c\" to
+the end of FILENAME."
+(interactive)
+(if filename ; I don't get it, (interactive-p) doesn't always work
+	(byte-compile-file filename t)
+(let ((current-prefix-arg '(4)))
+	(call-interactively 'byte-compile-file))))
+(defun byte-compile-buffer (&optional buffer)
+"Byte-compile and evaluate contents of BUFFER (default: the current buffer)."
+(interactive "bByte compile buffer: ")
+(setq buffer (if buffer (get-buffer buffer) (current-buffer)))
+(message "Compiling %s..." (buffer-name buffer))
+(let* ((filename (or (buffer-file-name buffer)
+			 (concat "#<buffer " (buffer-name buffer) ">")))
+	   (byte-compile-current-file buffer))
+(byte-compile-from-buffer buffer filename t))
+(message "Compiling %s...done" (buffer-name buffer))
+t)
+;;; compiling a single function
+;;;###autoload
+(defun compile-defun (&optional arg)
+"Compile and evaluate the current top-level form.
+Print the result in the minibuffer.
+With argument, insert value in current buffer after the form."
+(interactive "P")
+(save-excursion
+(end-of-defun)
+(beginning-of-defun)
+(let* ((byte-compile-current-file nil)
+	   (byte-compile-last-warned-form 'nothing)
+	   (value (eval (displaying-byte-compile-warnings
+			 (byte-compile-sexp (read (current-buffer))
+					    "toplevel forms")))))
+(cond (arg
+	     (message "Compiling from buffer... done.")
+	     (prin1 value (current-buffer))
+	     (insert "\n"))
+	    ((message "%s" (prin1-to-string value)))))))
+(defvar byte-compile-inbuffer)
+(defvar byte-compile-outbuffer)
+(defun byte-compile-from-buffer (byte-compile-inbuffer filename &optional eval)
+;; buffer --> output-buffer, or buffer --> eval form, return nil
+(let (byte-compile-outbuffer
+	;; Prevent truncation of flonums and lists as we read and print them
+	(float-output-format nil)
+	(case-fold-search nil)
+	(print-length nil)
+	(print-level nil)
+	;; Simulate entry to byte-compile-top-level
+	(byte-compile-constants nil)
+	(byte-compile-variables nil)
+	(byte-compile-tag-number 0)
+	(byte-compile-depth 0)
+	(byte-compile-maxdepth 0)
+	(byte-compile-output nil)
+	;;	  #### This is bound in b-c-close-variables.
+	;;	  (byte-compile-warnings (if (eq byte-compile-warnings t)
+	;;				     byte-compile-warning-types
+	;;				   byte-compile-warnings))
+	)
+(byte-compile-close-variables
+(save-excursion
+(setq byte-compile-outbuffer
+	     (set-buffer (get-buffer-create " *Compiler Output*")))
+(erase-buffer)
+;;	 (emacs-lisp-mode)
+(setq case-fold-search nil)
+(and filename
+	    (not eval)
+	    (byte-compile-insert-header filename
+					byte-compile-inbuffer
+					byte-compile-outbuffer))
+;; This is a kludge.  Some operating systems (OS/2, DOS) need to
+;; write files containing binary information specially.
+;; Under most circumstances, such files will be in binary
+;; overwrite mode, so those OS's use that flag to guess how
+;; they should write their data.  Advise them that .elc files
+;; need to be written carefully.
+(setq overwrite-mode 'overwrite-mode-binary))
+(displaying-byte-compile-warnings
+(save-excursion
+	(set-buffer byte-compile-inbuffer)
+	(goto-char 1)
+	;; Compile the forms from the input buffer.
+	(while (progn
+		 (while (progn (skip-chars-forward " \t\n\^l")
+			       (looking-at ";"))
+		   (forward-line 1))
+		 (not (eobp)))
+	  (byte-compile-file-form (read byte-compile-inbuffer)))
+	;; Compile pending forms at end of file.
+	(byte-compile-flush-pending)
+	(byte-compile-warn-about-unresolved-functions)
+	;; SHould we always do this?  When calling multiple files, it
+	;; would be useful to delay this warning until all have
+	;; been compiled.
+	(setq byte-compile-unresolved-functions nil)))
+(save-excursion
+(set-buffer byte-compile-outbuffer)
+(goto-char (point-min))))
+(if (not eval)
+	byte-compile-outbuffer
+(let (form)
+	(while (condition-case nil
+		   (progn (setq form (read byte-compile-outbuffer))
+			  t)
+		 (end-of-file nil))
+	  (eval form)))
+(kill-buffer byte-compile-outbuffer)
+nil)))
+(defun byte-compile-insert-header (filename byte-compile-inbuffer
+					    byte-compile-outbuffer)
+(set-buffer byte-compile-inbuffer)
+(let ((dynamic-docstrings byte-compile-dynamic-docstrings))
+(set-buffer byte-compile-outbuffer)
+(goto-char 1)
+;;
+;; The magic number of .elc files is ";ELC", or 0x3B454C43.  After that is
+;; the file-format version number (18 or 19) as a byte, followed by some
+;; nulls.  The primary motivation for doing this is to get some binary
+;; characters up in the first line of the file so that `diff' will simply
+;; say "Binary files differ" instead of actually doing a diff of two .elc
+;; files.  An extra benefit is that you can add this to /etc/magic:
+;;
+;; 0	string		;ELC		GNU Emacs Lisp compiled file,
+;; >4	byte		x		version %d
+;;
+(insert
+";ELC"
+(if (byte-compile-version-cond byte-compile-emacs18-compatibility) 18 19)
+"\000\000\000\n"
+)
+(insert ";;; compiled by "
+	    (or (and (boundp 'user-mail-address) user-mail-address)
+		(concat (user-login-name) "@" (system-name)))
+	    " on "
+	    (current-time-string) "\n;;; from file " filename "\n")
+(insert ";;; emacs version " emacs-version ".\n")
+(insert ";;; bytecomp version " byte-compile-version "\n;;; "
+(cond
+((eq byte-optimize 'source) "source-level optimization only")
+((eq byte-optimize 'byte) "byte-level optimization only")
+(byte-optimize "optimization is on")
+(t "optimization is off"))
+(if (byte-compile-version-cond byte-compile-emacs18-compatibility)
+	 "; compiled with Emacs 18 compatibility.\n"
+".\n"))
+(if (not (byte-compile-version-cond byte-compile-emacs18-compatibility))
+(insert ";;; this file uses opcodes which do not exist in Emacs 18.\n"
+	       ;; Have to check if emacs-version is bound so that this works
+	       ;; in files loaded early in loadup.el.
+	       "\n(if (and (boundp 'emacs-version)\n"
+	       "\t (or (and (boundp 'epoch::version) epoch::version)\n"
+		(if dynamic-docstrings
+		    "\t     (string-lessp emacs-version \"19.14\")))\n"
+		  "\t     (string-lessp emacs-version \"19\")))\n")
+		"    (error \"`"
+		;; prin1-to-string is used to quote backslashes.
+		(substring (prin1-to-string (file-name-nondirectory filename))
+			   1 -1)
+		(if dynamic-docstrings
+		    "' was compiled for XEmacs 19.14/Emacs 19.29 or later\"))\n\n"
+		  "' was compiled for Emacs 19\"))\n\n"))
+(insert "(or (boundp 'current-load-list) (setq current-load-list nil))\n"
+	      "\n")
+)))
+(defun byte-compile-output-file-form (form)
+;; writes the given form to the output buffer, being careful of docstrings
+;; in defun, defmacro, defvar, defconst and autoload because make-docfile is
+;; so amazingly stupid.
+;; defalias calls are output directly by byte-compile-file-form-defmumble;
+;; it does not pay to first build the defalias in defmumble and then parse
+;; it here.
+(if (and (memq (car-safe form) '(defun defmacro defvar defconst autoload))
+	   (stringp (nth 3 form)))
+(byte-compile-output-docform nil nil '("\n(" 3 ")") form nil
+				   (eq (car form) 'autoload))
+(let ((print-escape-newlines t)
+	  (print-length nil)
+	  (print-level nil)
+	  (print-readably t)	; print #[] for bytecode, 'x for (quote x)
+	  (print-gensym nil))	; this is too dangerous for now
+(princ "\n" byte-compile-outbuffer)
+(prin1 form byte-compile-outbuffer)
+nil)))
+(defun byte-compile-output-docform (preface name info form specindex quoted)
+"Print a form with a doc string.  INFO is (prefix doc-index postfix).
+If PREFACE and NAME are non-nil, print them too,
+before INFO and the FORM but after the doc string itself.
+If SPECINDEX is non-nil, it is the index in FORM
+of the function bytecode string.  In that case,
+we output that argument and the following argument (the constants vector)
+together, for lazy loading.
+QUOTED says that we have to put a quote before the
+list that represents a doc string reference.
+`autoload' needs that."
+;; We need to examine byte-compile-dynamic-docstrings
+;; in the input buffer (now current), not in the output buffer.
+(let ((dynamic-docstrings byte-compile-dynamic-docstrings))
+(set-buffer
+(prog1 (current-buffer)
+(set-buffer byte-compile-outbuffer)
+(let (position)
+	 ;; Insert the doc string, and make it a comment with #@LENGTH.
+	 (and (>= (nth 1 info) 0)
+	      dynamic-docstrings
+	      (progn
+		;; Make the doc string start at beginning of line
+		;; for make-docfile's sake.
+		(insert "\n")
+		(setq position
+		      (byte-compile-output-as-comment
+		       (nth (nth 1 info) form) nil))
+		;; If the doc string starts with * (a user variable),
+		;; negate POSITION.
+		(if (and (stringp (nth (nth 1 info) form))
+			 (> (length (nth (nth 1 info) form)) 0)
+			 (eq (aref (nth (nth 1 info) form) 0) ?*))
+		    (setq position (- position)))))
+	 (if preface
+	     (progn
+	       (insert preface)
+	       (prin1 name byte-compile-outbuffer)))
+	 (insert (car info))
+	 (let ((print-escape-newlines t)
+	       (print-readably t)	; print #[] for bytecode, 'x for (quote x)
+	       (print-gensym nil)	; this is too dangerous for now
+	       (index 0))
+	   (prin1 (car form) byte-compile-outbuffer)
+	   (while (setq form (cdr form))
+	     (setq index (1+ index))
+	     (insert " ")
+	     (cond ((and (numberp specindex) (= index specindex))
+		    (let ((position
+			   (byte-compile-output-as-comment
+			    (cons (car form) (nth 1 form))
+			    t)))
+		      (princ (format "(#$ . %d) nil" position)
+			     byte-compile-outbuffer)
+		      (setq form (cdr form))
+		      (setq index (1+ index))))
+		   ((= index (nth 1 info))
+		    (if position
+			(princ (format (if quoted "'(#$ . %d)"  "(#$ . %d)")
+				       position)
+			       byte-compile-outbuffer)
+		      (let ((print-escape-newlines nil))
+			(goto-char (prog1 (1+ (point))
+				     (prin1 (car form)
+					    byte-compile-outbuffer)))
+			(insert "\\\n")
+			(goto-char (point-max)))))
+		   (t
+		    (prin1 (car form) byte-compile-outbuffer)))))
+	 (insert (nth 2 info))))))
+nil)
+(defvar for-effect) ; ## Kludge!  This should be an arg, not a special.
+(defun byte-compile-keep-pending (form &optional handler)
+(if (memq byte-optimize '(t source))
+(setq form (byte-optimize-form form t)))
+(if handler
+(let ((for-effect t))
+	;; To avoid consing up monstrously large forms at load time, we split
+	;; the output regularly.
+	(and (memq (car-safe form) '(fset defalias define-function))
+	     (nthcdr 300 byte-compile-output)
+	     (byte-compile-flush-pending))
+	(funcall handler form)
+	(if for-effect
+	    (byte-compile-discard)))
+(byte-compile-form form t))
+nil)
+(defun byte-compile-flush-pending ()
+(if byte-compile-output
+(let ((form (byte-compile-out-toplevel t 'file)))
+	(cond ((eq (car-safe form) 'progn)
+	       (mapcar 'byte-compile-output-file-form (cdr form)))
+	      (form
+	       (byte-compile-output-file-form form)))
+	(setq byte-compile-constants nil
+	      byte-compile-variables nil
+	      byte-compile-depth 0
+	      byte-compile-maxdepth 0
+	      byte-compile-output nil))))
+(defun byte-compile-file-form (form)
+(let ((byte-compile-current-form nil)	; close over this for warnings.
+	handler)
+(cond
+((not (consp form))
+(byte-compile-keep-pending form))
+((and (symbolp (car form))
+	   (setq handler (get (car form) 'byte-hunk-handler)))
+(cond ((setq form (funcall handler form))
+	     (byte-compile-flush-pending)
+	     (byte-compile-output-file-form form))))
+((eq form (setq form (macroexpand form byte-compile-macro-environment)))
+(byte-compile-keep-pending form))
+(t
+(byte-compile-file-form form)))))
+;; Functions and variables with doc strings must be output separately,
+;; so make-docfile can recognise them.  Most other things can be output
+;; as byte-code.
+(put 'defsubst 'byte-hunk-handler 'byte-compile-file-form-defsubst)
+(defun byte-compile-file-form-defsubst (form)
+(cond ((assq (nth 1 form) byte-compile-unresolved-functions)
+	 (setq byte-compile-current-form (nth 1 form))
+	 (byte-compile-warn "defsubst %s was used before it was defined"
+			    (nth 1 form))))
+(byte-compile-file-form
+(macroexpand form byte-compile-macro-environment))
+;; Return nil so the form is not output twice.
+nil)
+(put 'autoload 'byte-hunk-handler 'byte-compile-file-form-autoload)
+(defun byte-compile-file-form-autoload (form)
+;;
+;; If this is an autoload of a macro, and all arguments are constants (that
+;; is, there is no hairy computation going on here) then evaluate the form
+;; at compile-time.  This is so that we can make use of macros which we
+;; have autoloaded from the file being compiled.  Normal function autoloads
+;; are not automatically evaluated at compile time, because there's not
+;; much point to it (so why bother cluttering up the compile-time namespace.)
+;;
+;; If this is an autoload of a function, then record its definition in the
+;; byte-compile-autoload-environment to suppress any `not known to be
+;; defined' warnings at the end of this file (this only matters for
+;; functions which are autoloaded and compiled in the same file, if the
+;; autoload already exists in the compilation environment, we wouldn't have
+;; warned anyway.)
+;;
+(let* ((name (if (byte-compile-constp (nth 1 form))
+		   (eval (nth 1 form))))
+	 ;; In v19, the 5th arg to autoload can be t, nil, 'macro, or 'keymap.
+	 (macrop (and (byte-compile-constp (nth 5 form))
+		      (memq (eval (nth 5 form)) '(t macro))))
+;;	 (functionp (and (byte-compile-constp (nth 5 form))
+;;			 (eq 'nil (eval (nth 5 form)))))
+	 )
+(if (and macrop
+	     (let ((form form))
+	       ;; all forms are constant
+	       (while (if (setq form (cdr form))
+			  (byte-compile-constp (car form))))
+	       (null form)))
+	;; eval the macro autoload into the compilation enviroment
+	(eval form))
+(if name
+	(let ((old (assq name byte-compile-autoload-environment)))
+	  (cond (old
+		 (if (memq 'redefine byte-compile-warnings)
+		     (byte-compile-warn "multiple autoloads for %s" name))
+		 (setcdr old form))
+		(t
+		 ;; We only use the names in the autoload environment, but
+		 ;; it might be useful to have the bodies some day.
+		 (setq byte-compile-autoload-environment
+		       (cons (cons name form)
+			     byte-compile-autoload-environment)))))))
+;;
+;; Now output the form.
+(if (stringp (nth 3 form))
+form
+;; No doc string, so we can compile this as a normal form.
+(byte-compile-keep-pending form 'byte-compile-normal-call)))
+(put 'defvar   'byte-hunk-handler 'byte-compile-file-form-defvar)
+(put 'defconst 'byte-hunk-handler 'byte-compile-file-form-defvar)
+(defun byte-compile-file-form-defvar (form)
+(if (> (length form) 4)
+(byte-compile-warn "%s used with too many args (%s)"
+			 (car form) (nth 1 form)))
+(if (and (> (length form) 3) (not (stringp (nth 3 form))))
+(byte-compile-warn "Third arg to %s %s is not a string: %s"
+			 (car form) (nth 1 form) (nth 3 form)))
+(if (null (nth 3 form))
+;; Since there is no doc string, we can compile this as a normal form,
+;; and not do a file-boundary.
+(byte-compile-keep-pending form)
+(if (memq 'free-vars byte-compile-warnings)
+	(setq byte-compile-bound-variables
+	      (cons (cons (nth 1 form) byte-compile-global-bit)
+		    byte-compile-bound-variables)))
+(cond ((consp (nth 2 form))
+	   (setq form (copy-sequence form))
+	   (setcar (cdr (cdr form))
+		   (byte-compile-top-level (nth 2 form) nil 'file))))
+;; The following turns out not to be necessary, since we emit a call to
+;; defvar, which can hack Vfile_domain by itself!
+;;
+;; If a file domain has been set, emit (put 'VAR 'variable-domain ...)
+;; after this defvar.
+;    (if byte-compile-file-domain
+;	(progn
+;	  ;; Actually, this will emit the (put ...) before the (defvar ...)
+;	  ;; but I don't think that can matter in this case.
+;	  (byte-compile-keep-pending
+;	   (list 'put (list 'quote (nth 1 form)) ''variable-domain
+;		(list 'quote byte-compile-file-domain)))))
+form))
+(put 'require 'byte-hunk-handler 'byte-compile-file-form-eval-boundary)
+(defun byte-compile-file-form-eval-boundary (form)
+(eval form)
+(byte-compile-keep-pending form 'byte-compile-normal-call))
+(put 'progn 'byte-hunk-handler 'byte-compile-file-form-progn)
+(put 'prog1 'byte-hunk-handler 'byte-compile-file-form-progn)
+(put 'prog2 'byte-hunk-handler 'byte-compile-file-form-progn)
+(defun byte-compile-file-form-progn (form)
+(mapcar 'byte-compile-file-form (cdr form))
+;; Return nil so the forms are not output twice.
+nil)
+;; This handler is not necessary, but it makes the output from dont-compile
+;; and similar macros cleaner.
+(put 'eval 'byte-hunk-handler 'byte-compile-file-form-eval)
+(defun byte-compile-file-form-eval (form)
+(if (eq (car-safe (nth 1 form)) 'quote)
+(nth 1 (nth 1 form))
+(byte-compile-keep-pending form)))
+(put 'defun 'byte-hunk-handler 'byte-compile-file-form-defun)
+(defun byte-compile-file-form-defun (form)
+(byte-compile-file-form-defmumble form nil))
+(put 'defmacro 'byte-hunk-handler 'byte-compile-file-form-defmacro)
+(defun byte-compile-file-form-defmacro (form)
+(byte-compile-file-form-defmumble form t))
+(defun byte-compile-compiled-obj-to-list (obj)
+;; #### this is fairly disgusting.  Rewrite the code instead
+;; so that it doesn't create compiled objects in the first place!
+;; Much better than creating them and then "uncreating" them
+;; like this.
+(read (concat "("
+		(substring (let ((print-readably t))
+			     (prin1-to-string obj))
+			   2 -1)
+		")")))
+(defun byte-compile-file-form-defmumble (form macrop)
+(let* ((name (car (cdr form)))
+	 (this-kind (if macrop 'byte-compile-macro-environment
+		      'byte-compile-function-environment))
+	 (that-kind (if macrop 'byte-compile-function-environment
+		      'byte-compile-macro-environment))
+	 (this-one (assq name (symbol-value this-kind)))
+	 (that-one (assq name (symbol-value that-kind)))
+	 (byte-compile-free-references nil)
+	 (byte-compile-free-assignments nil))
+;; When a function or macro is defined, add it to the call tree so that
+;; we can tell when functions are not used.
+(if byte-compile-generate-call-tree
+	(or (assq name byte-compile-call-tree)
+	    (setq byte-compile-call-tree
+		  (cons (list name nil nil) byte-compile-call-tree))))
+(setq byte-compile-current-form name) ; for warnings
+(if (memq 'redefine byte-compile-warnings)
+	(byte-compile-arglist-warn form macrop))
+(if byte-compile-verbose
+	(message "Compiling %s... (%s)"
+		 ;; #### filename used free
+		 (if filename (file-name-nondirectory filename) "")
+		 (nth 1 form)))
+(cond (that-one
+	   (if (and (memq 'redefine byte-compile-warnings)
+		    ;; hack hack: don't warn when compiling the stubs in
+		    ;; bytecomp-runtime...
+		    (not (assq (nth 1 form)
+			       byte-compile-initial-macro-environment)))
+	       (byte-compile-warn
+		 "%s defined multiple times, as both function and macro"
+		 (nth 1 form)))
+	   (setcdr that-one nil))
+	  (this-one
+	   (if (and (memq 'redefine byte-compile-warnings)
+		    ;; hack: don't warn when compiling the magic internal
+		    ;; byte-compiler macros in bytecomp-runtime.el...
+		    (not (assq (nth 1 form)
+			       byte-compile-initial-macro-environment)))
+	       (byte-compile-warn "%s %s defined multiple times in this file"
+				  (if macrop "macro" "function")
+				  (nth 1 form))))
+	  ((and (fboundp name)
+		(or (subrp (symbol-function name))
+		    (eq (car-safe (symbol-function name))
+		        (if macrop 'lambda 'macro))))
+	   (if (memq 'redefine byte-compile-warnings)
+	       (byte-compile-warn "%s %s being redefined as a %s"
+				  (if (subrp (symbol-function name))
+				      "subr"
+				    (if macrop "function" "macro"))
+				  (nth 1 form)
+				  (if macrop "macro" "function")))
+	   ;; shadow existing definition
+	   (set this-kind
+		(cons (cons name nil) (symbol-value this-kind))))
+	  )
+(let ((body (nthcdr 3 form)))
+(if (and (stringp (car body))
+	       (symbolp (car-safe (cdr-safe body)))
+	       (car-safe (cdr-safe body))
+	       (stringp (car-safe (cdr-safe (cdr-safe body)))))
+	  (byte-compile-warn "Probable `\"' without `\\' in doc string of %s"
+			     (nth 1 form))))
+(let* ((new-one (byte-compile-lambda (cons 'lambda (nthcdr 2 form))))
+	   (code (byte-compile-byte-code-maker new-one)))
+(if this-one
+	  (setcdr this-one new-one)
+	(set this-kind
+	     (cons (cons name new-one) (symbol-value this-kind))))
+(if (and (stringp (nth 3 form))
+	       (eq 'quote (car-safe code))
+	       (eq 'lambda (car-safe (nth 1 code))))
+	  (cons (car form)
+		(cons name (cdr (nth 1 code))))
+	(byte-compile-flush-pending)
+	(if (not (stringp (nth 3 form)))
+	    ;; No doc string.  Provide -1 as the "doc string index"
+	    ;; so that no element will be treated as a doc string.
+	    (byte-compile-output-docform
+	     (if (byte-compile-version-cond byte-compile-emacs18-compatibility)
+		 "\n(fset '" "\n(defalias '")
+	     name
+	     (cond ((atom code)
+		    (if macrop '(" '(macro . #[" -1 "])") '(" #[" -1 "]")))
+		   ((eq (car code) 'quote)
+		    (setq code new-one)
+		    (if macrop '(" '(macro " -1 ")") '(" '(" -1 ")")))
+		   ((if macrop '(" (cons 'macro (" -1 "))") '(" (" -1 ")"))))
+	     ;; FSF just calls `(append code nil)' here but that relies
+	     ;; on horrible C kludges in concat() that accept byte-
+	     ;; compiled objects and pretend they're vectors.
+	     (if (compiled-function-p code)
+		 (byte-compile-compiled-obj-to-list code)
+	       (append code nil))
+	     (and (atom code) byte-compile-dynamic
+		  1)
+	     nil)
+	  ;; Output the form by hand, that's much simpler than having
+	  ;; b-c-output-file-form analyze the defalias.
+	  (byte-compile-output-docform
+	   (if (byte-compile-version-cond byte-compile-emacs18-compatibility)
+	       "\n(fset '" "\n(defalias '")
+	   name
+	   (cond ((atom code) ; compiled-function-p
+		  (if macrop '(" '(macro . #[" 4 "])") '(" #[" 4 "]")))
+		 ((eq (car code) 'quote)
+		  (setq code new-one)
+		  (if macrop '(" '(macro " 2 ")") '(" '(" 2 ")")))
+		 ((if macrop '(" (cons 'macro (" 5 "))") '(" (" 5 ")"))))
+	   ;; The result of byte-compile-byte-code-maker is either a
+	   ;; compiled-function object, or a list of some kind.  If it's
+	   ;; not a cons, we must coerce it into a list of the elements
+	   ;; to be printed to the file.
+	   (if (consp code)
+	       code
+	     (nconc (list
+		     (compiled-function-arglist code)
+		     (compiled-function-instructions code)
+		     (compiled-function-constants code)
+		     (compiled-function-stack-depth code))
+		    (let ((doc (documentation code t)))
+		      (if doc (list doc)))
+		    (if (commandp code)
+			(list (nth 1 (compiled-function-interactive code))))))
+	   (and (atom code) byte-compile-dynamic
+		1)
+	   nil))
+	(princ ")" byte-compile-outbuffer)
+	nil))))
+;; Print Lisp object EXP in the output file, inside a comment,
+;; and return the file position it will have.
+;; If QUOTED is non-nil, print with quoting; otherwise, print without quoting.
+(defun byte-compile-output-as-comment (exp quoted)
+(let ((position (point)))
+(set-buffer
+(prog1 (current-buffer)
+(set-buffer byte-compile-outbuffer)
+;; Insert EXP, and make it a comment with #@LENGTH.
+(insert " ")
+(if quoted
+	   (prin1 exp byte-compile-outbuffer)
+	 (princ exp byte-compile-outbuffer))
+(goto-char position)
+;; Quote certain special characters as needed.
+;; get_doc_string in doc.c does the unquoting.
+(while (search-forward "\^A" nil t)
+	 (replace-match "\^A\^A" t t))
+(goto-char position)
+(while (search-forward "\000" nil t)
+	 (replace-match "\^A0" t t))
+(goto-char position)
+(while (search-forward "\037" nil t)
+	 (replace-match "\^A_" t t))
+(goto-char (point-max))
+(insert "\037")
+(goto-char position)
+(insert "#@" (format "%d" (- (point-max) position)))
+;; Save the file position of the object.
+;; Note we should add 1 to skip the space
+;; that we inserted before the actual doc string,
+;; and subtract 1 to convert from an 1-origin Emacs position
+;; to a file position; they cancel.
+(setq position (point))
+(goto-char (point-max))))
+position))
+;; The `domain' declaration.  This is legal only at top-level in a file, and
+;; should generally be the first form in the file.  It is not legal inside
+;; function bodies.
+(put 'domain 'byte-hunk-handler 'byte-compile-file-form-domain)
+(defun byte-compile-file-form-domain (form)
+(if (not (null (cdr (cdr form))))
+(byte-compile-warn "domain used with too many arguments: %s" form))
+(let ((domain (nth 1 form)))
+(or (null domain)
+	(stringp domain)
+	(progn
+	  (byte-compile-warn
+	   "argument to `domain' declaration must be a literal string: %s"
+	   form)
+	  (setq domain nil)))
+(setq byte-compile-file-domain domain))
+(byte-compile-keep-pending form 'byte-compile-normal-call))
+(defun byte-compile-domain (form)
+(byte-compile-warn "The `domain' declaration is legal only at top-level: %s"
+		     (let ((print-escape-newlines t)
+			   (print-level 4)
+			   (print-length 4))
+		       (prin1-to-string form)))
+(byte-compile-normal-call
+(list 'signal ''error
+	 (list 'quote (list "`domain' used inside a function" form)))))
+;;;###autoload
+(defun byte-compile (form)
+"If FORM is a symbol, byte-compile its function definition.
+If FORM is a lambda or a macro, byte-compile it as a function."
+(displaying-byte-compile-warnings
+(byte-compile-close-variables
+(let* ((fun (if (symbolp form)
+		    (and (fboundp form) (symbol-function form))
+		  form))
+	   (macro (eq (car-safe fun) 'macro)))
+(if macro
+	  (setq fun (cdr fun)))
+(cond ((eq (car-safe fun) 'lambda)
+	     (setq fun (if macro
+			   (cons 'macro (byte-compile-lambda fun))
+			 (byte-compile-lambda fun)))
+	     (if (symbolp form)
+		 (defalias form fun)
+	       fun)))))))
+;;;###autoload
+(defun byte-compile-sexp (sexp &optional msg)
+"Compile and return SEXP."
+(displaying-byte-compile-warnings
+(byte-compile-close-variables
+(prog1
+	(byte-compile-top-level sexp)
+(byte-compile-warn-about-unresolved-functions msg)))))
+;; Given a function made by byte-compile-lambda, make a form which produces it.
+(defun byte-compile-byte-code-maker (fun)
+(cond
+((byte-compile-version-cond byte-compile-emacs18-compatibility)
+;; Return (quote (lambda ...)).
+(list 'quote (byte-compile-byte-code-unmake fun)))
+;; ## atom is faster than compiled-func-p.
+((atom fun)				; compiled-function-p
+;; generate-emacs19-bytecodes must be on, otherwise byte-compile-lambda
+;; would have produced a lambda.
+fun)
+;; b-c-lambda didn't produce a compiled-function, so it's either a trivial
+;; function, or this is Emacs 18, or generate-emacs19-bytecodes is off.
+((let (tmp)
+(if (and (setq tmp (assq 'byte-code (cdr-safe (cdr fun))))
+	       (null (cdr (memq tmp fun))))
+	  ;; Generate a make-byte-code call.
+	  (let* ((interactive (assq 'interactive (cdr (cdr fun)))))
+	    (nconc (list 'make-byte-code
+			 (list 'quote (nth 1 fun)) ;arglist
+			 (nth 1 tmp)	;bytes
+			 (nth 2 tmp)	;consts
+			 (nth 3 tmp))	;depth
+		   (cond ((stringp (nth 2 fun))
+			  (list (nth 2 fun))) ;doc
+			 (interactive
+			  (list nil)))
+		   (cond (interactive
+			  (list (if (or (null (nth 1 interactive))
+					(stringp (nth 1 interactive)))
+				    (nth 1 interactive)
+				  ;; Interactive spec is a list or a variable
+				  ;; (if it is correct).
+				  (list 'quote (nth 1 interactive))))))))
+	;; a non-compiled function (probably trivial)
+	(list 'quote fun))))))
+;; Turn a function into an ordinary lambda.  Needed for v18 files.
+(defun byte-compile-byte-code-unmake (function)
+(if (consp function)
+function	; It already is a lambda.
+(nconc (list 'lambda (compiled-function-arglist function))
+	   (let ((doc (documentation function t)))
+	     (if doc (list doc)))
+	   (if (commandp function)
+	       (list (compiled-function-interactive function)))
+	   (list (list 'byte-code
+		       (compiled-function-instructions function)
+		       (compiled-function-constants function)
+		       (compiled-function-stack-depth function))))))
+;; Byte-compile a lambda-expression and return a valid function.
+;; The value is usually a compiled function but may be the original
+;; lambda-expression.
+(defun byte-compile-lambda (fun)
+(or (eq 'lambda (car-safe fun))
+(error "not a lambda -- %s" (prin1-to-string fun)))
+(let* ((arglist (nth 1 fun))
+	 (byte-compile-bound-variables
+	  (let ((new-bindings
+		 (mapcar (function (lambda (x)
+				     (cons x byte-compile-arglist-bit)))
+			 (and (memq 'free-vars byte-compile-warnings)
+			      (delq '&rest (delq '&optional
+						 (copy-sequence arglist)))))))
+	    (nconc new-bindings
+		   (cons 'new-scope byte-compile-bound-variables))))
+	 (body (cdr (cdr fun)))
+	 (doc (if (stringp (car body))
+		  (prog1 (car body)
+		    (setq body (cdr body)))))
+	 (int (assq 'interactive body)))
+(let ((rest arglist))
+(while rest
+	(cond ((not (symbolp (car rest)))
+	       (byte-compile-warn "non-symbol in arglist: %s"
+				  (prin1-to-string (car rest))))
+	      ((memq (car rest) '(t nil))
+	       (byte-compile-warn "constant in arglist: %s" (car rest)))
+	      ((and (= ?\& (aref (symbol-name (car rest)) 0))
+		    (not (memq (car rest) '(&optional &rest))))
+	       (byte-compile-warn "unrecognised `&' keyword in arglist: %s"
+				  (car rest))))
+	(setq rest (cdr rest))))
+(cond (int
+	   ;; Skip (interactive) if it is in front (the most usual location).
+	   (if (eq int (car body))
+	       (setq body (cdr body)))
+	   (cond ((consp (cdr int))
+		  (if (cdr (cdr int))
+		      (byte-compile-warn "malformed interactive spec: %s"
+					 (prin1-to-string int)))
+		  ;; If the interactive spec is a call to `list',
+		  ;; don't compile it, because `call-interactively'
+		  ;; looks at the args of `list'.
+		  (let ((form (nth 1 int)))
+		    (while (or (eq (car-safe form) 'let)
+			       (eq (car-safe form) 'let*)
+			       (eq (car-safe form) 'save-excursion))
+		      (while (consp (cdr form))
+			(setq form (cdr form)))
+		      (setq form (car form)))
+		    (or (eq (car-safe form) 'list)
+			(setq int (list 'interactive
+					(byte-compile-top-level (nth 1 int)))))))
+		 ((cdr int)
+		  (byte-compile-warn "malformed interactive spec: %s"
+				     (prin1-to-string int))))))
+(let ((compiled (byte-compile-top-level (cons 'progn body) nil 'lambda)))
+(if (memq 'unused-vars byte-compile-warnings)
+	  ;; done compiling in this scope, warn now.
+	  (byte-compile-warn-about-unused-variables))
+(if (and (eq 'byte-code (car-safe compiled))
+	       (not (byte-compile-version-cond
+		     byte-compile-emacs18-compatibility)))
+	  (apply 'make-byte-code
+		 (append (list arglist)
+			 ;; byte-string, constants-vector, stack depth
+			 (cdr compiled)
+			 ;; optionally, the doc string.
+			 (if (or doc int)
+			     (list doc))
+			 ;; optionally, the interactive spec.
+			 (if int
+			     (list (nth 1 int)))))
+	(setq compiled
+	      (nconc (if int (list int))
+		     (cond ((eq (car-safe compiled) 'progn) (cdr compiled))
+			   (compiled (list compiled)))))
+	(nconc (list 'lambda arglist)
+	       (if (or doc (stringp (car compiled)))
+		   (cons doc (cond (compiled)
+				   (body (list nil))))
+		 compiled))))))
+(defun byte-compile-constants-vector ()
+;; Builds the constants-vector from the current variables and constants.
+;;   This modifies the constants from (const . nil) to (const . offset).
+;; To keep the byte-codes to look up the vector as short as possible:
+;;   First 6 elements are vars, as there are one-byte varref codes for those.
+;;   Next up to byte-constant-limit are constants, still with one-byte codes.
+;;   Next variables again, to get 2-byte codes for variable lookup.
+;;   The rest of the constants and variables need 3-byte byte-codes.
+(let* ((i -1)
+	 (rest (nreverse byte-compile-variables)) ; nreverse because the first
+	 (other (nreverse byte-compile-constants)) ; vars often are used most.
+	 ret tmp
+	 (limits '(5			; Use the 1-byte varref codes,
+		   63  ; 1-constlim	;  1-byte byte-constant codes,
+		   255			;  2-byte varref codes,
+		   65535))		;  3-byte codes for the rest.
+	 limit)
+(while (or rest other)
+(setq limit (car limits))
+(while (and rest (not (eq i limit)))
+	(if (setq tmp (assq (car (car rest)) ret))
+	    (setcdr (car rest) (cdr tmp))
+	  (setcdr (car rest) (setq i (1+ i)))
+	  (setq ret (cons (car rest) ret)))
+	(setq rest (cdr rest)))
+(setq limits (cdr limits)
+	    rest (prog1 other
+		   (setq other rest))))
+(apply 'vector (nreverse (mapcar 'car ret)))))
+;; Given an expression FORM, compile it and return an equivalent byte-code
+;; expression (a call to the function byte-code).
+(defun byte-compile-top-level (form &optional for-effect output-type)
+;; OUTPUT-TYPE advises about how form is expected to be used:
+;;	'eval or nil	-> a single form,
+;;	'progn or t	-> a list of forms,
+;;	'lambda		-> body of a lambda,
+;;	'file		-> used at file-level.
+(let ((byte-compile-constants nil)
+	(byte-compile-variables nil)
+	(byte-compile-tag-number 0)
+	(byte-compile-depth 0)
+	(byte-compile-maxdepth 0)
+	(byte-compile-output nil))
+(if (memq byte-optimize '(t source))
+	(setq form (byte-optimize-form form for-effect)))
+(while (and (eq (car-safe form) 'progn) (null (cdr (cdr form))))
+(setq form (nth 1 form)))
+(if (and (eq 'byte-code (car-safe form))
+	     (not (memq byte-optimize '(t byte)))
+	     (stringp (nth 1 form))
+	     (vectorp (nth 2 form))
+	     (natnump (nth 3 form)))
+	form
+(byte-compile-form form for-effect)
+(byte-compile-out-toplevel for-effect output-type))))
+(defun byte-compile-out-toplevel (&optional for-effect output-type)
+(if for-effect
+;; The stack is empty. Push a value to be returned from (byte-code ..).
+(if (eq (car (car byte-compile-output)) 'byte-discard)
+	  (setq byte-compile-output (cdr byte-compile-output))
+	(byte-compile-push-constant
+	 ;; Push any constant - preferably one which already is used, and
+	 ;; a number or symbol - ie not some big sequence.  The return value
+	 ;; isn't returned, but it would be a shame if some textually large
+	 ;; constant was not optimized away because we chose to return it.
+	 (and (not (assq nil byte-compile-constants)) ; Nil is often there.
+	      (let ((tmp (reverse byte-compile-constants)))
+		(while (and tmp (not (or (symbolp (car (car tmp)))
+					 (numberp (car (car tmp))))))
+		  (setq tmp (cdr tmp)))
+		(car (car tmp)))))))
+(byte-compile-out 'byte-return 0)
+(setq byte-compile-output (nreverse byte-compile-output))
+(if (memq byte-optimize '(t byte))
+(setq byte-compile-output
+	    (byte-optimize-lapcode byte-compile-output for-effect)))
+;; Decompile trivial functions:
+;; only constants and variables, or a single funcall except in lambdas.
+;; Except for Lisp_Compiled objects, forms like (foo "hi")
+;; are still quicker than (byte-code "..." [foo "hi"] 2).
+;; Note that even (quote foo) must be parsed just as any subr by the
+;; interpreter, so quote should be compiled into byte-code in some contexts.
+;; What to leave uncompiled:
+;;	lambda	-> never.  we used to leave it uncompiled if the body was
+;;		   a single atom, but that causes confusion if the docstring
+;;		   uses the (file . pos) syntax.  Besides, now that we have
+;;		   the Lisp_Compiled type, the compiled form is faster.
+;;	eval	-> atom, quote or (function atom atom atom)
+;;	progn	-> as <<same-as-eval>> or (progn <<same-as-eval>> atom)
+;;	file	-> as progn, but takes both quotes and atoms, and longer forms.
+(let (rest
+	(maycall (not (eq output-type 'lambda))) ; t if we may make a funcall.
+	tmp body)
+(cond
+;; #### This should be split out into byte-compile-nontrivial-function-p.
+((or (eq output-type 'lambda)
+	  (nthcdr (if (eq output-type 'file) 50 8) byte-compile-output)
+	  (assq 'TAG byte-compile-output) ; Not necessary, but speeds up a bit.
+	  (not (setq tmp (assq 'byte-return byte-compile-output)))
+	  (progn
+	    (setq rest (nreverse
+			(cdr (memq tmp (reverse byte-compile-output)))))
+	    (while (cond
+		    ((memq (car (car rest)) '(byte-varref byte-constant))
+		     (setq tmp (car (cdr (car rest))))
+		     (if (if (eq (car (car rest)) 'byte-constant)
+			     (or (consp tmp)
+				 (and (symbolp tmp)
+				      (not (keywordp tmp))
+				      (not (memq tmp '(nil t))))))
+			 (if maycall
+			     (setq body (cons (list 'quote tmp) body)))
+		       (setq body (cons tmp body))))
+		    ((and maycall
+			  ;; Allow a funcall if at most one atom follows it.
+			  (null (nthcdr 3 rest))
+			  (setq tmp (get (car (car rest)) 'byte-opcode-invert))
+			  (or (null (cdr rest))
+			      (and (memq output-type '(file progn t))
+				   (cdr (cdr rest))
+				   (eq (car (nth 1 rest)) 'byte-discard)
+				   (progn (setq rest (cdr rest)) t))))
+		     (setq maycall nil)	; Only allow one real function call.
+		     (setq body (nreverse body))
+		     (setq body (list
+				 (if (and (eq tmp 'funcall)
+					  (eq (car-safe (car body)) 'quote))
+				     (cons (nth 1 (car body)) (cdr body))
+				   (cons tmp body))))
+		     (or (eq output-type 'file)
+			 (not (delq nil (mapcar 'consp (cdr (car body))))))))
+	      (setq rest (cdr rest)))
+	    rest))
+(let ((byte-compile-vector (byte-compile-constants-vector)))
+	(list 'byte-code (byte-compile-lapcode byte-compile-output)
+	      byte-compile-vector byte-compile-maxdepth)))
+;; it's a trivial function
+((cdr body) (cons 'progn (nreverse body)))
+((car body)))))
+;; Given BODY, compile it and return a new body.
+(defun byte-compile-top-level-body (body &optional for-effect)
+(setq body (byte-compile-top-level (cons 'progn body) for-effect t))
+(cond ((eq (car-safe body) 'progn)
+	 (cdr body))
+	(body
+	 (list body))))
+;; This is the recursive entry point for compiling each subform of an
+;; expression.
+;; If for-effect is non-nil, byte-compile-form will output a byte-discard
+;; before terminating (ie no value will be left on the stack).
+;; A byte-compile handler may, when for-effect is non-nil, choose output code
+;; which does not leave a value on the stack, and then set for-effect to nil
+;; (to prevent byte-compile-form from outputting the byte-discard).
+;; If a handler wants to call another handler, it should do so via
+;; byte-compile-form, or take extreme care to handle for-effect correctly.
+;; (Use byte-compile-form-do-effect to reset the for-effect flag too.)
+;;
+(defun byte-compile-form (form &optional for-effect)
+(setq form (macroexpand form byte-compile-macro-environment))
+(cond ((not (consp form))
+	 ;; XEmacs addition: keywordp
+	 (cond ((or (not (symbolp form)) (keywordp form) (memq form '(nil t)))
+		(byte-compile-constant form))
+	       ((and for-effect byte-compile-delete-errors)
+		(setq for-effect nil))
+	       (t (byte-compile-variable-ref 'byte-varref form))))
+	((symbolp (car form))
+	 (let* ((fn (car form))
+		(handler (get fn 'byte-compile)))
+	   (if (memq fn '(t nil))
+	       (byte-compile-warn "%s called as a function" fn))
+	   (if (and handler
+		    (or (not (byte-compile-version-cond
+			      byte-compile-emacs18-compatibility))
+			(not (get (get fn 'byte-opcode) 'emacs19-opcode))))
+	       (funcall handler form)
+	     (if (memq 'callargs byte-compile-warnings)
+		 (byte-compile-callargs-warn form))
+	     (byte-compile-normal-call form))))
+	((and (or (compiled-function-p (car form))
+		  (eq (car-safe (car form)) 'lambda))
+	      ;; if the form comes out the same way it went in, that's
+	      ;; because it was malformed, and we couldn't unfold it.
+	      (not (eq form (setq form (byte-compile-unfold-lambda form)))))
+	 (byte-compile-form form for-effect)
+	 (setq for-effect nil))
+	((byte-compile-normal-call form)))
+(if for-effect
+(byte-compile-discard)))
+(defun byte-compile-normal-call (form)
+(if byte-compile-generate-call-tree
+(byte-compile-annotate-call-tree form))
+(byte-compile-push-constant (car form))
+(mapcar 'byte-compile-form (cdr form)) ; wasteful, but faster.
+(byte-compile-out 'byte-call (length (cdr form))))
+;; kludge added to XEmacs to work around the bogosities of a nonlexical lisp.
+(or (fboundp 'globally-boundp) (fset 'globally-boundp 'boundp))
+(defun byte-compile-variable-ref (base-op var &optional varbind-flags)
+(if (or (not (symbolp var)) (keywordp var) (memq var '(nil t)))
+(byte-compile-warn (if (eq base-op 'byte-varbind)
+			     "Attempt to let-bind %s %s"
+			   "Variable reference to %s %s")
+			 (if (symbolp var) "constant" "nonvariable")
+			 (prin1-to-string var))
+(if (and (get var 'byte-obsolete-variable)
+	     (memq 'obsolete byte-compile-warnings))
+	(let ((ob (get var 'byte-obsolete-variable)))
+	  (byte-compile-warn "%s is an obsolete variable; %s" var
+			     (if (stringp ob)
+				 ob
+			       (format "use %s instead." ob)))))
+(if (memq 'free-vars byte-compile-warnings)
+	(if (eq base-op 'byte-varbind)
+	    (setq byte-compile-bound-variables
+		  (cons (cons var (or varbind-flags 0))
+			byte-compile-bound-variables))
+	  (or (globally-boundp var)
+	      (let ((cell (assq var byte-compile-bound-variables)))
+		(if cell (setcdr cell
+				 (logior (cdr cell)
+					 (if (eq base-op 'byte-varset)
+					     byte-compile-assigned-bit
+					   byte-compile-referenced-bit)))))
+	      (if (eq base-op 'byte-varset)
+		  (or (memq var byte-compile-free-assignments)
+		      (progn
+			(byte-compile-warn "assignment to free variable %s"
+					   var)
+			(setq byte-compile-free-assignments
+			      (cons var byte-compile-free-assignments))))
+		(or (memq var byte-compile-free-references)
+		    (progn
+		      (byte-compile-warn "reference to free variable %s" var)
+		      (setq byte-compile-free-references
+			    (cons var byte-compile-free-references)))))))))
+(let ((tmp (assq var byte-compile-variables)))
+(or tmp
+	(setq tmp (list var)
+	      byte-compile-variables (cons tmp byte-compile-variables)))
+(byte-compile-out base-op tmp)))
+(defmacro byte-compile-get-constant (const)
+(` (or (if (stringp (, const))
+	     (assoc (, const) byte-compile-constants)
+	   (assq (, const) byte-compile-constants))
+	 (car (setq byte-compile-constants
+		    (cons (list (, const)) byte-compile-constants))))))
+;; Use this when the value of a form is a constant.  This obeys for-effect.
+(defun byte-compile-constant (const)
+(if for-effect
+(setq for-effect nil)
+(byte-compile-out 'byte-constant (byte-compile-get-constant const))))
+;; Use this for a constant that is not the value of its containing form.
+;; This ignores for-effect.
+(defun byte-compile-push-constant (const)
+(let ((for-effect nil))
+(inline (byte-compile-constant const))))
+;; Compile those primitive ordinary functions
+;; which have special byte codes just for speed.
+(defmacro byte-defop-compiler (function &optional compile-handler)
+;; add a compiler-form for FUNCTION.
+;; If function is a symbol, then the variable "byte-SYMBOL" must name
+;; the opcode to be used.  If function is a list, the first element
+;; is the function and the second element is the bytecode-symbol.
+;; COMPILE-HANDLER is the function to use to compile this byte-op, or
+;; may be the abbreviations 0, 1, 2, 3, 0-1, 1-2, 2-3, 0+1, 1+1, 2+1,
+;; 0-1+1, 1-2+1, 2-3+1, 0+2, or 1+2.  If it is nil, then the handler is
+;; "byte-compile-SYMBOL."
+(let (opcode)
+(if (symbolp function)
+	(setq opcode (intern (concat "byte-" (symbol-name function))))
+(setq opcode (car (cdr function))
+	    function (car function)))
+(let ((fnform
+	   (list 'put (list 'quote function) ''byte-compile
+		 (list 'quote
+		       (or (cdr (assq compile-handler
+				      '((0 . byte-compile-no-args)
+					(1 . byte-compile-one-arg)
+					(2 . byte-compile-two-args)
+					(3 . byte-compile-three-args)
+					(0-1 . byte-compile-zero-or-one-arg)
+					(1-2 . byte-compile-one-or-two-args)
+					(2-3 . byte-compile-two-or-three-args)
+					(0+1 . byte-compile-no-args-with-one-extra)
+					(1+1 . byte-compile-one-arg-with-one-extra)
+					(2+1 . byte-compile-two-args-with-one-extra)
+					(0-1+1 . byte-compile-zero-or-one-arg-with-one-extra)
+					(1-2+1 . byte-compile-one-or-two-args-with-one-extra)
+					(2-3+1 . byte-compile-two-or-three-args-with-one-extra)
+					(0+2 . byte-compile-no-args-with-two-extra)
+					(1+2 . byte-compile-one-arg-with-two-extra)
+					)))
+			   compile-handler
+			   (intern (concat "byte-compile-"
+					   (symbol-name function))))))))
+(if opcode
+	  (list 'progn fnform
+		(list 'put (list 'quote function)
+		      ''byte-opcode (list 'quote opcode))
+		(list 'put (list 'quote opcode)
+		      ''byte-opcode-invert (list 'quote function)))
+	fnform))))
+(defmacro byte-defop-compiler19 (function &optional compile-handler)
+;; Just like byte-defop-compiler, but defines an opcode that will only
+;; be used when byte-compile-emacs18-compatibility is false.
+(if (and (byte-compile-single-version)
+	   byte-compile-emacs18-compatibility)
+;; #### instead of doing nothing, this should do some remprops,
+;; #### to protect against the case where a single-version compiler
+;; #### is loaded into a world that has contained a multi-version one.
+nil
+(list 'progn
+(list 'put
+	(list 'quote
+	  (or (car (cdr-safe function))
+	      (intern (concat "byte-"
+		        (symbol-name (or (car-safe function) function))))))
+	''emacs19-opcode t)
+(list 'byte-defop-compiler function compile-handler))))
+(defmacro byte-defop-compiler-1 (function &optional compile-handler)
+(list 'byte-defop-compiler (list function nil) compile-handler))
+(put 'byte-call 'byte-opcode-invert 'funcall)
+(put 'byte-list1 'byte-opcode-invert 'list)
+(put 'byte-list2 'byte-opcode-invert 'list)
+(put 'byte-list3 'byte-opcode-invert 'list)
+(put 'byte-list4 'byte-opcode-invert 'list)
+(put 'byte-listN 'byte-opcode-invert 'list)
+(put 'byte-concat2 'byte-opcode-invert 'concat)
+(put 'byte-concat3 'byte-opcode-invert 'concat)
+(put 'byte-concat4 'byte-opcode-invert 'concat)
+(put 'byte-concatN 'byte-opcode-invert 'concat)
+(put 'byte-insertN 'byte-opcode-invert 'insert)
+(byte-defop-compiler (dot byte-point)		0+1)
+(byte-defop-compiler (dot-max byte-point-max)	0+1)
+(byte-defop-compiler (dot-min byte-point-min)	0+1)
+(byte-defop-compiler point		0+1)
+;;(byte-defop-compiler mark		0) ;; obsolete
+(byte-defop-compiler point-max		0+1)
+(byte-defop-compiler point-min		0+1)
+(byte-defop-compiler following-char	0+1)
+(byte-defop-compiler preceding-char	0+1)
+(byte-defop-compiler current-column	0+1)
+;; FSF has special function here; generalized here by the 1+2 stuff.
+(byte-defop-compiler (indent-to-column byte-indent-to) 1+2)
+(byte-defop-compiler indent-to		1+2)
+(byte-defop-compiler eolp		0+1)
+(byte-defop-compiler eobp		0+1)
+(byte-defop-compiler bolp		0+1)
+(byte-defop-compiler bobp		0+1)
+(byte-defop-compiler current-buffer	0)
+;;(byte-defop-compiler read-char	0) ;; obsolete
+(byte-defop-compiler interactive-p	0)
+(byte-defop-compiler19 widen		0+1)
+(byte-defop-compiler19 end-of-line    0-1+1)
+(byte-defop-compiler19 forward-char   0-1+1)
+(byte-defop-compiler19 forward-line   0-1+1)
+(byte-defop-compiler symbolp		1)
+(byte-defop-compiler consp		1)
+(byte-defop-compiler stringp		1)
+(byte-defop-compiler listp		1)
+(byte-defop-compiler not		1)
+(byte-defop-compiler (null byte-not)	1)
+(byte-defop-compiler car		1)
+(byte-defop-compiler cdr		1)
+(byte-defop-compiler length		1)
+(byte-defop-compiler symbol-value	1)
+(byte-defop-compiler symbol-function	1)
+(byte-defop-compiler (1+ byte-add1)	1)
+(byte-defop-compiler (1- byte-sub1)	1)
+(byte-defop-compiler goto-char		1+1)
+(byte-defop-compiler char-after		1+1)
+(byte-defop-compiler set-buffer		1)
+;;(byte-defop-compiler set-mark		1) ;; obsolete
+(byte-defop-compiler19 forward-word	1+1)
+(byte-defop-compiler19 char-syntax	1+1)
+(byte-defop-compiler19 nreverse		1)
+(byte-defop-compiler19 car-safe		1)
+(byte-defop-compiler19 cdr-safe		1)
+(byte-defop-compiler19 numberp		1)
+(byte-defop-compiler19 integerp		1)
+(byte-defop-compiler19 skip-chars-forward     1-2+1)
+(byte-defop-compiler19 skip-chars-backward    1-2+1)
+;;(byte-defop-compiler (eql byte-eq) 	2)
+(byte-defop-compiler eq 	 	2)
+(byte-defop-compiler memq		2)
+(byte-defop-compiler cons		2)
+(byte-defop-compiler aref		2)
+(byte-defop-compiler (= byte-eqlsign)	2)
+(byte-defop-compiler (< byte-lss)	2)
+(byte-defop-compiler (> byte-gtr)	2)
+(byte-defop-compiler (<= byte-leq)	2)
+(byte-defop-compiler (>= byte-geq)	2)
+(byte-defop-compiler get		2+1)
+(byte-defop-compiler nth		2)
+(byte-defop-compiler substring		2-3)
+(byte-defop-compiler19 (move-marker byte-set-marker) 2-3)
+(byte-defop-compiler19 set-marker	2-3)
+(byte-defop-compiler19 match-beginning	1)
+(byte-defop-compiler19 match-end	1)
+(byte-defop-compiler19 upcase		1+1)
+(byte-defop-compiler19 downcase		1+1)
+(byte-defop-compiler19 string=		2)
+(byte-defop-compiler19 string<		2)
+(byte-defop-compiler19 (string-equal byte-string=) 2)
+(byte-defop-compiler19 (string-lessp byte-string<) 2)
+(byte-defop-compiler19 equal		2)
+(byte-defop-compiler19 nthcdr		2)
+(byte-defop-compiler19 elt		2)
+(byte-defop-compiler19 member		2)
+(byte-defop-compiler19 assq		2)
+(byte-defop-compiler19 (rplaca byte-setcar) 2)
+(byte-defop-compiler19 (rplacd byte-setcdr) 2)
+(byte-defop-compiler19 setcar		2)
+(byte-defop-compiler19 setcdr		2)
+;; buffer-substring now has its own function.  This used to be
+;; 2+1, but now all args are optional.
+(byte-defop-compiler19 buffer-substring)
+(byte-defop-compiler19 delete-region	2+1)
+(byte-defop-compiler19 narrow-to-region	2+1)
+(byte-defop-compiler19 (% byte-rem)	2)
+(byte-defop-compiler aset		3)
+(byte-defop-compiler max		byte-compile-associative)
+(byte-defop-compiler min		byte-compile-associative)
+(byte-defop-compiler (+ byte-plus)	byte-compile-associative)
+(byte-defop-compiler19 (* byte-mult)	byte-compile-associative)
+;;####(byte-defop-compiler19 move-to-column	1)
+(byte-defop-compiler-1 interactive byte-compile-noop)
+(byte-defop-compiler-1 domain byte-compile-domain)
+;; As of GNU Emacs 19.18 and Lucid Emacs 19.8, mod and % are different: `%'
+;; means integral remainder and may have a negative result; `mod' is always
+;; positive, and accepts floating point args.  All code which uses `mod' and
+;; requires the new interpretation must be compiled with bytecomp version 2.18
+;; or newer, or the emitted code will run the byte-code for `%' instead of an
+;; actual call to `mod'.  So be careful of compiling new code with an old
+;; compiler.  Note also that `%' is more efficient than `mod' because the
+;; former is byte-coded and the latter is not.
+;;(byte-defop-compiler19 (mod byte-rem) 2)
+(defun byte-compile-subr-wrong-args (form n)
+(byte-compile-warn "%s called with %d arg%s, but requires %s"
+		     (car form) (length (cdr form))
+		     (if (= 1 (length (cdr form))) "" "s") n)
+;; get run-time wrong-number-of-args error.
+(byte-compile-normal-call form))
+(defun byte-compile-no-args (form)
+(if (not (= (length form) 1))
+(byte-compile-subr-wrong-args form "none")
+(byte-compile-out (get (car form) 'byte-opcode) 0)))
+(defun byte-compile-one-arg (form)
+(if (not (= (length form) 2))
+(byte-compile-subr-wrong-args form 1)
+(byte-compile-form (car (cdr form)))  ;; Push the argument
+(byte-compile-out (get (car form) 'byte-opcode) 0)))
+(defun byte-compile-two-args (form)
+(if (not (= (length form) 3))
+(byte-compile-subr-wrong-args form 2)
+(byte-compile-form (car (cdr form)))  ;; Push the arguments
+(byte-compile-form (nth 2 form))
+(byte-compile-out (get (car form) 'byte-opcode) 0)))
+(defun byte-compile-three-args (form)
+(if (not (= (length form) 4))
+(byte-compile-subr-wrong-args form 3)
+(byte-compile-form (car (cdr form)))  ;; Push the arguments
+(byte-compile-form (nth 2 form))
+(byte-compile-form (nth 3 form))
+(byte-compile-out (get (car form) 'byte-opcode) 0)))
+(defun byte-compile-zero-or-one-arg (form)
+(let ((len (length form)))
+(cond ((= len 1) (byte-compile-one-arg (append form '(nil))))
+	  ((= len 2) (byte-compile-one-arg form))
+	  (t (byte-compile-subr-wrong-args form "0-1")))))
+(defun byte-compile-one-or-two-args (form)
+(let ((len (length form)))
+(cond ((= len 2) (byte-compile-two-args (append form '(nil))))
+	  ((= len 3) (byte-compile-two-args form))
+	  (t (byte-compile-subr-wrong-args form "1-2")))))
+(defun byte-compile-two-or-three-args (form)
+(let ((len (length form)))
+(cond ((= len 3) (byte-compile-three-args (append form '(nil))))
+	  ((= len 4) (byte-compile-three-args form))
+	  (t (byte-compile-subr-wrong-args form "2-3")))))
+;; from Ben Wing <wing@666.com>: some inlined functions have extra
+;; optional args added to them in XEmacs 19.12.  Changing the byte
+;; interpreter to deal with these args would be wrong and cause
+;; incompatibility, so we generate non-inlined calls for those cases.
+;; Without the following functions, spurious warnings will be generated;
+;; however, they would still compile correctly because
+;; `byte-compile-subr-wrong-args' also converts the call to non-inlined.
+(defun byte-compile-no-args-with-one-extra (form)
+(let ((len (length form)))
+(cond ((= len 1) (byte-compile-no-args form))
+	  ((= len 2) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "0-1")))))
+(defun byte-compile-one-arg-with-one-extra (form)
+(let ((len (length form)))
+(cond ((= len 2) (byte-compile-one-arg form))
+	  ((= len 3) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "1-2")))))
+(defun byte-compile-two-args-with-one-extra (form)
+(let ((len (length form)))
+(cond ((= len 3) (byte-compile-two-args form))
+	  ((= len 4) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "2-3")))))
+(defun byte-compile-zero-or-one-arg-with-one-extra (form)
+(let ((len (length form)))
+(cond ((= len 1) (byte-compile-one-arg (append form '(nil))))
+	  ((= len 2) (byte-compile-one-arg form))
+	  ((= len 3) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "0-2")))))
+(defun byte-compile-one-or-two-args-with-one-extra (form)
+(let ((len (length form)))
+(cond ((= len 2) (byte-compile-two-args (append form '(nil))))
+	  ((= len 3) (byte-compile-two-args form))
+	  ((= len 4) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "1-3")))))
+(defun byte-compile-two-or-three-args-with-one-extra (form)
+(let ((len (length form)))
+(cond ((= len 3) (byte-compile-three-args (append form '(nil))))
+	  ((= len 4) (byte-compile-three-args form))
+	  ((= len 5) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "2-4")))))
+(defun byte-compile-no-args-with-two-extra (form)
+(let ((len (length form)))
+(cond ((= len 1) (byte-compile-no-args form))
+	  ((or (= len 2) (= len 3)) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "0-2")))))
+(defun byte-compile-one-arg-with-two-extra (form)
+(let ((len (length form)))
+(cond ((= len 2) (byte-compile-one-arg form))
+	  ((or (= len 3) (= len 4)) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "1-3")))))
+(defun byte-compile-noop (form)
+(byte-compile-constant nil))
+(defun byte-compile-discard ()
+(byte-compile-out 'byte-discard 0))
+;; Compile a function that accepts one or more args and is right-associative.
+;; We do it by left-associativity so that the operations
+;; are done in the same order as in interpreted code.
+(defun byte-compile-associative (form)
+(if (cdr form)
+(let ((opcode (get (car form) 'byte-opcode))
+	    (args (copy-sequence (cdr form))))
+	(byte-compile-form (car args))
+	(setq args (cdr args))
+	(while args
+	  (byte-compile-form (car args))
+	  (byte-compile-out opcode 0)
+	  (setq args (cdr args))))
+(byte-compile-constant (eval form))))
+;; more complicated compiler macros
+(byte-defop-compiler list)
+(byte-defop-compiler concat)
+(byte-defop-compiler fset)
+(byte-defop-compiler insert)
+(byte-defop-compiler-1 function byte-compile-function-form)
+(byte-defop-compiler-1 - byte-compile-minus)
+(byte-defop-compiler19 (/ byte-quo) byte-compile-quo)
+(byte-defop-compiler19 nconc)
+(byte-defop-compiler-1 beginning-of-line)
+(defun byte-compile-buffer-substring (form)
+(let ((len (length form)))
+;; buffer-substring used to take exactly two args, but now takes 0-3.
+;; convert 0-2 to two args and use special bytecode operand.
+;; convert 3 args to a normal call.
+(cond ((= len 1) (setq form (append form '(nil nil)))
+	   (= len 2) (setq form (append form '(nil)))))
+(cond ((= len 3) (byte-compile-two-args form))
+	  ((= len 4) (byte-compile-normal-call form))
+	  (t (byte-compile-subr-wrong-args form "0-3")))))
+(defun byte-compile-list (form)
+(let ((count (length (cdr form))))
+(cond ((= count 0)
+	   (byte-compile-constant nil))
+	  ((< count 5)
+	   (mapcar 'byte-compile-form (cdr form))
+	   (byte-compile-out
+	    (aref [byte-list1 byte-list2 byte-list3 byte-list4] (1- count)) 0))
+	  ((and (< count 256) (not (byte-compile-version-cond
+				    byte-compile-emacs18-compatibility)))
+	   (mapcar 'byte-compile-form (cdr form))
+	   (byte-compile-out 'byte-listN count))
+	  (t (byte-compile-normal-call form)))))
+(defun byte-compile-concat (form)
+(let ((count (length (cdr form))))
+(cond ((and (< 1 count) (< count 5))
+	   (mapcar 'byte-compile-form (cdr form))
+	   (byte-compile-out
+	    (aref [byte-concat2 byte-concat3 byte-concat4] (- count 2))
+	    0))
+	  ;; Concat of one arg is not a no-op if arg is not a string.
+	  ((= count 0)
+	   (byte-compile-form ""))
+	  ((and (< count 256) (not (byte-compile-version-cond
+				    byte-compile-emacs18-compatibility)))
+	   (mapcar 'byte-compile-form (cdr form))
+	   (byte-compile-out 'byte-concatN count))
+	  ((byte-compile-normal-call form)))))
+(defun byte-compile-minus (form)
+(if (null (setq form (cdr form)))
+(byte-compile-constant 0)
+(byte-compile-form (car form))
+(if (cdr form)
+	(while (setq form (cdr form))
+	  (byte-compile-form (car form))
+	  (byte-compile-out 'byte-diff 0))
+(byte-compile-out 'byte-negate 0))))
+(defun byte-compile-quo (form)
+(let ((len (length form)))
+(cond ((<= len 2)
+	   (byte-compile-subr-wrong-args form "2 or more"))
+	  (t
+	   (byte-compile-form (car (setq form (cdr form))))
+	   (while (setq form (cdr form))
+	     (byte-compile-form (car form))
+	     (byte-compile-out 'byte-quo 0))))))
+(defun byte-compile-nconc (form)
+(let ((len (length form)))
+(cond ((= len 1)
+	   (byte-compile-constant nil))
+	  ((= len 2)
+	   ;; nconc of one arg is a noop, even if that arg isn't a list.
+	   (byte-compile-form (nth 1 form)))
+	  (t
+	   (byte-compile-form (car (setq form (cdr form))))
+	   (while (setq form (cdr form))
+	     (byte-compile-form (car form))
+	     (byte-compile-out 'byte-nconc 0))))))
+(defun byte-compile-fset (form)
+;; warn about forms like (fset 'foo '(lambda () ...))
+;; (where the lambda expression is non-trivial...)
+;; Except don't warn if the first argument is 'make-byte-code, because
+;; I'm sick of getting mail asking me whether that warning is a problem.
+(let ((fn (nth 2 form))
+	body)
+(if (and (eq (car-safe fn) 'quote)
+	     (eq (car-safe (setq fn (nth 1 fn))) 'lambda)
+	     (not (eq (car-safe (cdr-safe (nth 1 form))) 'make-byte-code)))
+	(progn
+	  (setq body (cdr (cdr fn)))
+	  (if (stringp (car body)) (setq body (cdr body)))
+	  (if (eq 'interactive (car-safe (car body))) (setq body (cdr body)))
+	  (if (and (consp (car body))
+		   (not (eq 'byte-code (car (car body)))))
+	      (byte-compile-warn
+"A quoted lambda form is the second argument of fset.  This is probably
+not what you want, as that lambda cannot be compiled.  Consider using
+the syntax (function (lambda (...) ...)) instead.")))))
+(byte-compile-two-args form))
+(defun byte-compile-funarg (form)
+;; (mapcar '(lambda (x) ..) ..) ==> (mapcar (function (lambda (x) ..)) ..)
+;; for cases where it's guaranteed that first arg will be used as a lambda.
+(byte-compile-normal-call
+(let ((fn (nth 1 form)))
+(if (and (eq (car-safe fn) 'quote)
+	      (eq (car-safe (nth 1 fn)) 'lambda))
+	 (cons (car form)
+	       (cons (cons 'function (cdr fn))
+		     (cdr (cdr form))))
+form))))
+;; (function foo) must compile like 'foo, not like (symbol-function 'foo).
+;; Otherwise it will be incompatible with the interpreter,
+;; and (funcall (function foo)) will lose with autoloads.
+(defun byte-compile-function-form (form)
+(byte-compile-constant
+(cond ((symbolp (nth 1 form))
+	  (nth 1 form))
+	 ;; If we're not allowed to use #[] syntax, then output a form like
+	 ;; '(lambda (..) (byte-code ..)) instead of a call to make-byte-code.
+	 ;; In this situation, calling make-byte-code at run-time will usually
+	 ;; be less efficient than processing a call to byte-code.
+	 ((byte-compile-version-cond byte-compile-emacs18-compatibility)
+	  (byte-compile-byte-code-unmake (byte-compile-lambda (nth 1 form))))
+	 ((byte-compile-lambda (nth 1 form))))))
+(defun byte-compile-insert (form)
+(cond ((null (cdr form))
+	 (byte-compile-constant nil))
+	((and (not (byte-compile-version-cond
+		    byte-compile-emacs18-compatibility))
+	      (<= (length form) 256))
+	 (mapcar 'byte-compile-form (cdr form))
+	 (if (cdr (cdr form))
+	     (byte-compile-out 'byte-insertN (length (cdr form)))
+	   (byte-compile-out 'byte-insert 0)))
+	((memq t (mapcar 'consp (cdr (cdr form))))
+	 (byte-compile-normal-call form))
+	;; We can split it; there is no function call after inserting 1st arg.
+	(t
+	 (while (setq form (cdr form))
+	   (byte-compile-form (car form))
+	   (byte-compile-out 'byte-insert 0)
+	   (if (cdr form)
+	       (byte-compile-discard))))))
+;; alas, the old (pre-19.12, and all existing versions of FSFmacs 19)
+;; byte compiler will generate incorrect code for
+;; (beginning-of-line nil buffer) because it buggily doesn't
+;; check the number of arguments passed to beginning-of-line.
+(defun byte-compile-beginning-of-line (form)
+(let ((len (length form)))
+(cond ((> len 3)
+	   (byte-compile-subr-wrong-args form "0-2"))
+	  ((or (= len 3) (not (byte-compile-constp (nth 1 form))))
+	   (byte-compile-normal-call form))
+	  (t
+	   (byte-compile-form
+	    (list 'forward-line
+		  (if (integerp (setq form (or (eval (nth 1 form)) 1)))
+		      (1- form)
+		    (byte-compile-warn
+		     "Non-numeric arg to beginning-of-line: %s" form)
+		    (list '1- (list 'quote form))))
+	    t)
+	   (byte-compile-constant nil)))))
+(byte-defop-compiler set)
+(byte-defop-compiler-1 setq)
+(byte-defop-compiler-1 set-default)
+(byte-defop-compiler-1 setq-default)
+(byte-defop-compiler-1 quote)
+(byte-defop-compiler-1 quote-form)
+(defun byte-compile-setq (form)
+(let ((args (cdr form)))
+(if args
+	(while args
+	  (byte-compile-form (car (cdr args)))
+	  (or for-effect (cdr (cdr args))
+	      (byte-compile-out 'byte-dup 0))
+	  (byte-compile-variable-ref 'byte-varset (car args))
+	  (setq args (cdr (cdr args))))
+;; (setq), with no arguments.
+(byte-compile-form nil for-effect))
+(setq for-effect nil)))
+(defun byte-compile-set (form)
+;; Compile (set 'foo x) as (setq foo x) for trivially better code and so
+;; that we get applicable warnings.  Compile everything else (including
+;; malformed calls) like a normal 2-arg byte-coded function.
+(if (or (not (eq (car-safe (nth 1 form)) 'quote))
+	  (not (= (length form) 3))
+	  (not (= (length (nth 1 form)) 2)))
+(byte-compile-two-args form)
+(byte-compile-setq (list 'setq (nth 1 (nth 1 form)) (nth 2 form)))))
+(defun byte-compile-setq-default (form)
+(let ((rest (cdr form)))
+;; emit multiple calls to set-default if necessary
+(while rest
+(byte-compile-form
+(list 'set-default (list 'quote (car rest)) (car (cdr rest)))
+(not (null (cdr (cdr rest)))))
+(setq rest (cdr (cdr rest))))))
+(defun byte-compile-set-default (form)
+(let ((rest (cdr form)))
+(if (cdr (cdr (cdr form)))
+	;; emit multiple calls to set-default if necessary; all but last
+	;; for-effect (this recurses.)
+	(while rest
+	  (byte-compile-form
+	   (list 'set-default (car rest) (car (cdr rest)))
+	   (not (null (cdr rest))))
+	  (setq rest (cdr (cdr rest))))
+;; else, this is the one-armed version
+(let ((var (nth 1 form))
+	    ;;(val (nth 2 form))
+	    )
+	;; notice calls to set-default/setq-default for variables which
+	;; have not been declared with defvar/defconst.
+	(if (and (memq 'free-vars byte-compile-warnings)
+		 (or (null var)
+		     (and (eq (car-safe var) 'quote)
+			  (= 2 (length var)))))
+	    (let ((sym (nth 1 var))
+		  cell)
+	      (or (and sym (symbolp sym) (globally-boundp sym))
+		  (and (setq cell (assq sym byte-compile-bound-variables))
+		       (setcdr cell (logior (cdr cell)
+					    byte-compile-assigned-bit)))
+		  (memq sym byte-compile-free-assignments)
+		  (if (or (not (symbolp sym)) (memq sym '(t nil)))
+		      (progn
+			(byte-compile-warn
+			 "Attempt to set-globally %s %s"
+			 (if (symbolp sym) "constant" "nonvariable")
+			 (prin1-to-string sym)))
+		    (progn
+		      (byte-compile-warn "assignment to free variable %s" sym)
+		      (setq byte-compile-free-assignments
+			    (cons sym byte-compile-free-assignments)))))))
+	;; now emit a normal call to set-default (or possibly multiple calls)
+	(byte-compile-normal-call form)))))
+(defun byte-compile-quote (form)
+(byte-compile-constant (car (cdr form))))
+(defun byte-compile-quote-form (form)
+(byte-compile-constant (byte-compile-top-level (nth 1 form))))
+;;; control structures
+(defun byte-compile-body (body &optional for-effect)
+(while (cdr body)
+(byte-compile-form (car body) t)
+(setq body (cdr body)))
+(byte-compile-form (car body) for-effect))
+(proclaim-inline byte-compile-body-do-effect)
+(defun byte-compile-body-do-effect (body)
+(byte-compile-body body for-effect)
+(setq for-effect nil))
+(proclaim-inline byte-compile-form-do-effect)
+(defun byte-compile-form-do-effect (form)
+(byte-compile-form form for-effect)
+(setq for-effect nil))
+(byte-defop-compiler-1 inline byte-compile-progn)
+(byte-defop-compiler-1 progn)
+(byte-defop-compiler-1 prog1)
+(byte-defop-compiler-1 prog2)
+(byte-defop-compiler-1 if)
+(byte-defop-compiler-1 cond)
+(byte-defop-compiler-1 and)
+(byte-defop-compiler-1 or)
+(byte-defop-compiler-1 while)
+(byte-defop-compiler-1 funcall)
+(byte-defop-compiler-1 apply byte-compile-funarg)
+(byte-defop-compiler-1 mapcar byte-compile-funarg)
+(byte-defop-compiler-1 mapatoms byte-compile-funarg)
+(byte-defop-compiler-1 mapconcat byte-compile-funarg)
+(byte-defop-compiler-1 let)
+(byte-defop-compiler-1 let*)
+(defun byte-compile-progn (form)
+(byte-compile-body-do-effect (cdr form)))
+(defun byte-compile-prog1 (form)
+(byte-compile-form-do-effect (car (cdr form)))
+(byte-compile-body (cdr (cdr form)) t))
+(defun byte-compile-prog2 (form)
+(byte-compile-form (nth 1 form) t)
+(byte-compile-form-do-effect (nth 2 form))
+(byte-compile-body (cdr (cdr (cdr form))) t))
+(defmacro byte-compile-goto-if (cond discard tag)
+(` (byte-compile-goto
+(if (, cond)
+	  (if (, discard) 'byte-goto-if-not-nil 'byte-goto-if-not-nil-else-pop)
+	(if (, discard) 'byte-goto-if-nil 'byte-goto-if-nil-else-pop))
+(, tag))))
+(defun byte-compile-if (form)
+(byte-compile-form (car (cdr form)))
+(if (null (nthcdr 3 form))
+;; No else-forms
+(let ((donetag (byte-compile-make-tag)))
+	(byte-compile-goto-if nil for-effect donetag)
+	(byte-compile-form (nth 2 form) for-effect)
+	(byte-compile-out-tag donetag))
+(let ((donetag (byte-compile-make-tag)) (elsetag (byte-compile-make-tag)))
+(byte-compile-goto 'byte-goto-if-nil elsetag)
+(byte-compile-form (nth 2 form) for-effect)
+(byte-compile-goto 'byte-goto donetag)
+(byte-compile-out-tag elsetag)
+(byte-compile-body (cdr (cdr (cdr form))) for-effect)
+(byte-compile-out-tag donetag)))
+(setq for-effect nil))
+(defun byte-compile-cond (clauses)
+(let ((donetag (byte-compile-make-tag))
+	nexttag clause)
+(while (setq clauses (cdr clauses))
+(setq clause (car clauses))
+(cond ((or (eq (car clause) t)
+		 (and (eq (car-safe (car clause)) 'quote)
+		      (car-safe (cdr-safe (car clause)))))
+	     ;; Unconditional clause
+	     (setq clause (cons t clause)
+		   clauses nil))
+	    ((cdr clauses)
+	     (byte-compile-form (car clause))
+	     (if (null (cdr clause))
+		 ;; First clause is a singleton.
+		 (byte-compile-goto-if t for-effect donetag)
+	       (setq nexttag (byte-compile-make-tag))
+	       (byte-compile-goto 'byte-goto-if-nil nexttag)
+	       (byte-compile-body (cdr clause) for-effect)
+	       (byte-compile-goto 'byte-goto donetag)
+	       (byte-compile-out-tag nexttag)))))
+;; Last clause
+(and (cdr clause) (not (eq (car clause) t))
+	 (progn (byte-compile-form (car clause))
+		(byte-compile-goto-if nil for-effect donetag)
+		(setq clause (cdr clause))))
+(byte-compile-body-do-effect clause)
+(byte-compile-out-tag donetag)))
+(defun byte-compile-and (form)
+(let ((failtag (byte-compile-make-tag))
+	(args (cdr form)))
+(if (null args)
+	(byte-compile-form-do-effect t)
+(while (cdr args)
+	(byte-compile-form (car args))
+	(byte-compile-goto-if nil for-effect failtag)
+	(setq args (cdr args)))
+(byte-compile-form-do-effect (car args))
+(byte-compile-out-tag failtag))))
+(defun byte-compile-or (form)
+(let ((wintag (byte-compile-make-tag))
+	(args (cdr form)))
+(if (null args)
+	(byte-compile-form-do-effect nil)
+(while (cdr args)
+	(byte-compile-form (car args))
+	(byte-compile-goto-if t for-effect wintag)
+	(setq args (cdr args)))
+(byte-compile-form-do-effect (car args))
+(byte-compile-out-tag wintag))))
+(defun byte-compile-while (form)
+(let ((endtag (byte-compile-make-tag))
+	(looptag (byte-compile-make-tag)))
+(byte-compile-out-tag looptag)
+(byte-compile-form (car (cdr form)))
+(byte-compile-goto-if nil for-effect endtag)
+(byte-compile-body (cdr (cdr form)) t)
+(byte-compile-goto 'byte-goto looptag)
+(byte-compile-out-tag endtag)
+(setq for-effect nil)))
+(defun byte-compile-funcall (form)
+(mapcar 'byte-compile-form (cdr form))
+(byte-compile-out 'byte-call (length (cdr (cdr form)))))
+(defun byte-compile-let (form)
+;; First compute the binding values in the old scope.
+(let ((varlist (car (cdr form))))
+(while varlist
+(if (consp (car varlist))
+	  (byte-compile-form (car (cdr (car varlist))))
+	(byte-compile-push-constant nil))
+(setq varlist (cdr varlist))))
+(let ((byte-compile-bound-variables
+	 (cons 'new-scope byte-compile-bound-variables))
+	(varlist (reverse (car (cdr form))))
+	(extra-flags
+	 ;; If this let is of the form (let (...) (byte-code ...))
+	 ;; then assume that it is the result of a transformation of
+	 ;; ((lambda (...) (byte-code ... )) ...) and thus compile
+	 ;; the variable bindings as if they were arglist bindings
+	 ;; (which matters for what warnings.)
+	 (if (eq 'byte-code (car-safe (nth 2 form)))
+	     byte-compile-arglist-bit
+	   nil)))
+(while varlist
+(byte-compile-variable-ref 'byte-varbind
+				 (if (consp (car varlist))
+				     (car (car varlist))
+				   (car varlist))
+				 extra-flags)
+(setq varlist (cdr varlist)))
+(byte-compile-body-do-effect (cdr (cdr form)))
+(if (memq 'unused-vars byte-compile-warnings)
+	;; done compiling in this scope, warn now.
+	(byte-compile-warn-about-unused-variables))
+(byte-compile-out 'byte-unbind (length (car (cdr form))))))
+(defun byte-compile-let* (form)
+(let ((byte-compile-bound-variables
+	 (cons 'new-scope byte-compile-bound-variables))
+	(varlist (copy-sequence (car (cdr form)))))
+(while varlist
+(if (atom (car varlist))
+	  (byte-compile-push-constant nil)
+	(byte-compile-form (car (cdr (car varlist))))
+	(setcar varlist (car (car varlist))))
+(byte-compile-variable-ref 'byte-varbind (car varlist))
+(setq varlist (cdr varlist)))
+(byte-compile-body-do-effect (cdr (cdr form)))
+(if (memq 'unused-vars byte-compile-warnings)
+	;; done compiling in this scope, warn now.
+	(byte-compile-warn-about-unused-variables))
+(byte-compile-out 'byte-unbind (length (car (cdr form))))))
+(byte-defop-compiler-1 /= byte-compile-negated)
+(byte-defop-compiler-1 atom byte-compile-negated)
+(byte-defop-compiler-1 nlistp byte-compile-negated)
+(put '/= 'byte-compile-negated-op '=)
+(put 'atom 'byte-compile-negated-op 'consp)
+(put 'nlistp 'byte-compile-negated-op 'listp)
+(defun byte-compile-negated (form)
+(byte-compile-form-do-effect (byte-compile-negation-optimizer form)))
+;; Even when optimization is off, /= is optimized to (not (= ...)).
+(defun byte-compile-negation-optimizer (form)
+;; an optimizer for forms where <form1> is less efficient than (not <form2>)
+(list 'not
+(cons (or (get (car form) 'byte-compile-negated-op)
+	      (error
+	       "Compiler error: `%s' has no `byte-compile-negated-op' property"
+	       (car form)))
+	  (cdr form))))
+;;; other tricky macro-like special-forms
+(byte-defop-compiler-1 catch)
+(byte-defop-compiler-1 unwind-protect)
+(byte-defop-compiler-1 condition-case)
+(byte-defop-compiler-1 save-excursion)
+(byte-defop-compiler-1 save-restriction)
+(byte-defop-compiler-1 save-window-excursion)
+(byte-defop-compiler-1 with-output-to-temp-buffer)
+;; no track-mouse.
+(defun byte-compile-catch (form)
+(byte-compile-form (car (cdr form)))
+(byte-compile-push-constant
+(byte-compile-top-level (cons 'progn (cdr (cdr form))) for-effect))
+(byte-compile-out 'byte-catch 0))
+(defun byte-compile-unwind-protect (form)
+(byte-compile-push-constant
+(byte-compile-top-level-body (cdr (cdr form)) t))
+(byte-compile-out 'byte-unwind-protect 0)
+(byte-compile-form-do-effect (car (cdr form)))
+(byte-compile-out 'byte-unbind 1))
+;;(defun byte-compile-track-mouse (form)
+;;  (byte-compile-form
+;;   (list
+;;    'funcall
+;;    (list 'quote
+;;	    (list 'lambda nil
+;;		  (cons 'track-mouse
+;;			(byte-compile-top-level-body (cdr form))))))))
+(defun byte-compile-condition-case (form)
+(let* ((var (nth 1 form))
+	 (byte-compile-bound-variables
+	  (if var
+	      (cons (cons var 0)
+		    (cons 'new-scope byte-compile-bound-variables))
+	    (cons 'new-scope byte-compile-bound-variables))))
+(or (symbolp var)
+	(byte-compile-warn
+	 "%s is not a variable-name or nil (in condition-case)"
+	 (prin1-to-string var)))
+(byte-compile-push-constant var)
+(byte-compile-push-constant (byte-compile-top-level
+				 (nth 2 form) for-effect))
+(let ((clauses (cdr (cdr (cdr form))))
+	  compiled-clauses)
+(while clauses
+	(let* ((clause (car clauses))
+(condition (car clause)))
+(cond ((not (or (symbolp condition)
+			  (and (listp condition)
+			       (let ((syms condition) (ok t))
+				 (while syms
+				   (if (not (symbolp (car syms)))
+				       (setq ok nil))
+				   (setq syms (cdr syms)))
+				 ok))))
+(byte-compile-warn
+"%s is not a symbol naming a condition or a list of such (in condition-case)"
+(prin1-to-string condition)))
+;;                ((not (or (eq condition 't)
+;;			  (and (stringp (get condition 'error-message))
+;;			       (consp (get condition 'error-conditions)))))
+;;                 (byte-compile-warn
+;;                   "%s is not a known condition name (in condition-case)"
+;;                   condition))
+		)
+	  (setq compiled-clauses
+		(cons (cons condition
+			    (byte-compile-top-level-body
+			     (cdr clause) for-effect))
+		      compiled-clauses)))
+	(setq clauses (cdr clauses)))
+(byte-compile-push-constant (nreverse compiled-clauses)))
+(if (memq 'unused-vars byte-compile-warnings)
+	;; done compiling in this scope, warn now.
+	(byte-compile-warn-about-unused-variables))
+(byte-compile-out 'byte-condition-case 0)))
+(defun byte-compile-save-excursion (form)
+(byte-compile-out 'byte-save-excursion 0)
+(byte-compile-body-do-effect (cdr form))
+(byte-compile-out 'byte-unbind 1))
+(defun byte-compile-save-restriction (form)
+(byte-compile-out 'byte-save-restriction 0)
+(byte-compile-body-do-effect (cdr form))
+(byte-compile-out 'byte-unbind 1))
+(defun byte-compile-save-window-excursion (form)
+(byte-compile-push-constant
+(byte-compile-top-level-body (cdr form) for-effect))
+(byte-compile-out 'byte-save-window-excursion 0))
+(defun byte-compile-with-output-to-temp-buffer (form)
+(byte-compile-form (car (cdr form)))
+(byte-compile-out 'byte-temp-output-buffer-setup 0)
+(byte-compile-body (cdr (cdr form)))
+(byte-compile-out 'byte-temp-output-buffer-show 0))
+;;; top-level forms elsewhere
+(byte-defop-compiler-1 defun)
+(byte-defop-compiler-1 defmacro)
+(byte-defop-compiler-1 defvar)
+(byte-defop-compiler-1 defconst byte-compile-defvar)
+(byte-defop-compiler-1 autoload)
+;; According to Mly this can go now that lambda is a macro
+;(byte-defop-compiler-1 lambda byte-compile-lambda-form)
+(byte-defop-compiler-1 defalias)
+(byte-defop-compiler-1 define-function)
+(defun byte-compile-defun (form)
+;; This is not used for file-level defuns with doc strings.
+(byte-compile-two-args ; Use this to avoid byte-compile-fset's warning.
+(list 'fset (list 'quote (nth 1 form))
+	 (byte-compile-byte-code-maker
+	  (byte-compile-lambda (cons 'lambda (cdr (cdr form)))))))
+(byte-compile-discard)
+(byte-compile-constant (nth 1 form)))
+(defun byte-compile-defmacro (form)
+;; This is not used for file-level defmacros with doc strings.
+(byte-compile-body-do-effect
+(list (list 'fset (list 'quote (nth 1 form))
+	       (let ((code (byte-compile-byte-code-maker
+			    (byte-compile-lambda
+			     (cons 'lambda (cdr (cdr form)))))))
+		 (if (eq (car-safe code) 'make-byte-code)
+		     (list 'cons ''macro code)
+		   (list 'quote (cons 'macro (eval code))))))
+	 (list 'quote (nth 1 form)))))
+(defun byte-compile-defvar (form)
+;; This is not used for file-level defvar/consts with doc strings:
+;; byte-compile-file-form-defvar will be used in that case.
+(let ((var (nth 1 form))
+	(value (nth 2 form))
+	(string (nth 3 form)))
+(if (> (length form) 4)
+	(byte-compile-warn "%s used with too many args" (car form)))
+(if (memq 'free-vars byte-compile-warnings)
+	(setq byte-compile-bound-variables
+	      (cons (cons var byte-compile-global-bit)
+		    byte-compile-bound-variables)))
+(byte-compile-body-do-effect
+(list (if (cdr (cdr form))
+	       (if (eq (car form) 'defconst)
+		   (list 'setq var value)
+		 (list 'or (list 'boundp (list 'quote var))
+		       (list 'setq var value))))
+	   ;; Put the defined variable in this library's load-history entry
+	   ;; just as a real defvar would.
+	   (list 'setq 'current-load-list
+		 (list 'cons (list 'quote var)
+		       'current-load-list))
+	   (if string
+	       (list 'put (list 'quote var) ''variable-documentation string))
+	   (list 'quote var)))))
+(defun byte-compile-autoload (form)
+(and (byte-compile-constp (nth 1 form))
+(byte-compile-constp (nth 5 form))
+(memq (eval (nth 5 form)) '(t macro))  ; macro-p
+(not (fboundp (eval (nth 1 form))))
+(byte-compile-warn
+	"The compiler ignores `autoload' except at top level.  You should
+probably put the autoload of the macro `%s' at top-level."
+	(eval (nth 1 form))))
+(byte-compile-normal-call form))
+;; Lambda's in valid places are handled as special cases by various code.
+;; The ones that remain are errors.
+;; According to Mly this can go now that lambda is a macro
+;(defun byte-compile-lambda-form (form)
+;  (byte-compile-warn
+;   "`lambda' used in function position is invalid: probably you mean #'%s"
+;   (let ((print-escape-newlines t)
+;	 (print-level 4)
+;	 (print-length 4))
+;     (prin1-to-string form)))
+;  (byte-compile-normal-call
+;   (list 'signal ''error
+;	 (list 'quote (list "`lambda' used in function position" form)))))
+;; Compile normally, but deal with warnings for the function being defined.
+(defun byte-compile-defalias (form)
+(if (and (consp (cdr form)) (consp (nth 1 form))
+	   (eq (car (nth 1 form)) 'quote)
+	   (consp (cdr (nth 1 form)))
+	   (symbolp (nth 1 (nth 1 form)))
+	   (consp (nthcdr 2 form))
+	   (consp (nth 2 form))
+	   (eq (car (nth 2 form)) 'quote)
+	   (consp (cdr (nth 2 form)))
+	   (symbolp (nth 1 (nth 2 form))))
+(progn
+	(byte-compile-defalias-warn (nth 1 (nth 1 form))
+				    (nth 1 (nth 2 form)))
+	(setq byte-compile-function-environment
+	      (cons (cons (nth 1 (nth 1 form))
+			  (nth 1 (nth 2 form)))
+		    byte-compile-function-environment))))
+(byte-compile-normal-call form))
+(defun byte-compile-define-function (form)
+(byte-compile-defalias form))
+;; Turn off warnings about prior calls to the function being defalias'd.
+;; This could be smarter and compare those calls with
+;; the function it is being aliased to.
+(defun byte-compile-defalias-warn (new alias)
+(let ((calls (assq new byte-compile-unresolved-functions)))
+(if calls
+	(setq byte-compile-unresolved-functions
+	      (delq calls byte-compile-unresolved-functions)))))
+;;; tags
+;; Note: Most operations will strip off the 'TAG, but it speeds up
+;; optimization to have the 'TAG as a part of the tag.
+;; Tags will be (TAG . (tag-number . stack-depth)).
+(defun byte-compile-make-tag ()
+(list 'TAG (setq byte-compile-tag-number (1+ byte-compile-tag-number))))
+(defun byte-compile-out-tag (tag)
+(setq byte-compile-output (cons tag byte-compile-output))
+(if (cdr (cdr tag))
+(progn
+	;; ## remove this someday
+	(and byte-compile-depth
+	  (not (= (cdr (cdr tag)) byte-compile-depth))
+	  (error "Compiler bug: depth conflict at tag %d" (car (cdr tag))))
+	(setq byte-compile-depth (cdr (cdr tag))))
+(setcdr (cdr tag) byte-compile-depth)))
+(defun byte-compile-goto (opcode tag)
+(setq byte-compile-output (cons (cons opcode tag) byte-compile-output))
+(setcdr (cdr tag) (if (memq opcode byte-goto-always-pop-ops)
+			(1- byte-compile-depth)
+		      byte-compile-depth))
+(setq byte-compile-depth (and (not (eq opcode 'byte-goto))
+				(1- byte-compile-depth))))
+(defun byte-compile-out (opcode offset)
+(setq byte-compile-output (cons (cons opcode offset) byte-compile-output))
+(cond ((eq opcode 'byte-call)
+	 (setq byte-compile-depth (- byte-compile-depth offset)))
+	((eq opcode 'byte-return)
+	 ;; This is actually an unnecessary case, because there should be
+	 ;; no more opcodes behind byte-return.
+	 (setq byte-compile-depth nil))
+	(t
+	 (setq byte-compile-depth (+ byte-compile-depth
+				     (or (aref byte-stack+-info
+					       (symbol-value opcode))
+					 (- (1- offset))))
+	       byte-compile-maxdepth (max byte-compile-depth
+					  byte-compile-maxdepth))))
+;;(if (< byte-compile-depth 0) (error "Compiler error: stack underflow"))
+)
+;;; call tree stuff
+(defun byte-compile-annotate-call-tree (form)
+(let (entry)
+;; annotate the current call
+(if (setq entry (assq (car form) byte-compile-call-tree))
+	(or (memq byte-compile-current-form (nth 1 entry)) ;callers
+	    (setcar (cdr entry)
+		    (cons byte-compile-current-form (nth 1 entry))))
+(setq byte-compile-call-tree
+	    (cons (list (car form) (list byte-compile-current-form) nil)
+		  byte-compile-call-tree)))
+;; annotate the current function
+(if (setq entry (assq byte-compile-current-form byte-compile-call-tree))
+	(or (memq (car form) (nth 2 entry)) ;called
+	    (setcar (cdr (cdr entry))
+		    (cons (car form) (nth 2 entry))))
+(setq byte-compile-call-tree
+	    (cons (list byte-compile-current-form nil (list (car form)))
+		  byte-compile-call-tree)))
+))
+;; Renamed from byte-compile-report-call-tree
+;; to avoid interfering with completion of byte-compile-file.
+;;;###autoload
+(defun display-call-tree (&optional filename)
+"Display a call graph of a specified file.
+This lists which functions have been called, what functions called
+them, and what functions they call.  The list includes all functions
+whose definitions have been compiled in this Emacs session, as well as
+all functions called by those functions.
+The call graph does not include macros, inline functions, or
+primitives that the byte-code interpreter knows about directly \(eq,
+cons, etc.\).
+The call tree also lists those functions which are not known to be called
+\(that is, to which no calls have been compiled\), and which cannot be
+invoked interactively."
+(interactive)
+(message "Generating call tree...")
+(with-output-to-temp-buffer "*Call-Tree*"
+(set-buffer "*Call-Tree*")
+(erase-buffer)
+(message "Generating call tree... (sorting on %s)"
+	     byte-compile-call-tree-sort)
+(insert "Call tree for "
+	    (cond ((null byte-compile-current-file) (or filename "???"))
+		  ((stringp byte-compile-current-file)
+		   byte-compile-current-file)
+		  (t (buffer-name byte-compile-current-file)))
+	    " sorted on "
+	    (prin1-to-string byte-compile-call-tree-sort)
+	    ":\n\n")
+(if byte-compile-call-tree-sort
+	(setq byte-compile-call-tree
+	      (sort byte-compile-call-tree
+		    (cond
+		     ((eq byte-compile-call-tree-sort 'callers)
+		      (function (lambda (x y) (< (length (nth 1 x))
+						 (length (nth 1 y))))))
+		     ((eq byte-compile-call-tree-sort 'calls)
+		      (function (lambda (x y) (< (length (nth 2 x))
+						 (length (nth 2 y))))))
+		     ((eq byte-compile-call-tree-sort 'calls+callers)
+		      (function (lambda (x y) (< (+ (length (nth 1 x))
+						    (length (nth 2 x)))
+						 (+ (length (nth 1 y))
+						    (length (nth 2 y)))))))
+		     ((eq byte-compile-call-tree-sort 'name)
+		      (function (lambda (x y) (string< (car x)
+						       (car y)))))
+		     (t (error
+		      "`byte-compile-call-tree-sort': `%s' - unknown sort mode"
+			       byte-compile-call-tree-sort))))))
+(message "Generating call tree...")
+(let ((rest byte-compile-call-tree)
+	  (b (current-buffer))
+	  f p
+	  callers calls)
+(while rest
+	(prin1 (car (car rest)) b)
+	(setq callers (nth 1 (car rest))
+	      calls (nth 2 (car rest)))
+	(insert "\t"
+	  (cond ((not (fboundp (setq f (car (car rest)))))
+		 (if (null f)
+		     " <top level>";; shouldn't insert nil then, actually -sk
+		   " <not defined>"))
+		((subrp (setq f (symbol-function f)))
+		 " <subr>")
+		((symbolp f)
+		 (format " ==> %s" f))
+		((compiled-function-p f)
+		 "<compiled function>")
+		((not (consp f))
+		 "<malformed function>")
+		((eq 'macro (car f))
+		 (if (or (compiled-function-p (cdr f))
+			 (assq 'byte-code (cdr (cdr (cdr f)))))
+		     " <compiled macro>"
+		   " <macro>"))
+		((assq 'byte-code (cdr (cdr f)))
+		 "<compiled lambda>")
+		((eq 'lambda (car f))
+		 "<function>")
+		(t "???"))
+	  (format " (%d callers + %d calls = %d)"
+		  ;; Does the optimizer eliminate common subexpressions?-sk
+		  (length callers)
+		  (length calls)
+		  (+ (length callers) (length calls)))
+	  "\n")
+	(if callers
+	    (progn
+	      (insert "  called by:\n")
+	      (setq p (point))
+	      (insert "    " (if (car callers)
+				 (mapconcat 'symbol-name callers ", ")
+			       "<top level>"))
+	      (let ((fill-prefix "    "))
+		(fill-region-as-paragraph p (point)))))
+	(if calls
+	    (progn
+	      (insert "  calls:\n")
+	      (setq p (point))
+	      (insert "    " (mapconcat 'symbol-name calls ", "))
+	      (let ((fill-prefix "    "))
+		(fill-region-as-paragraph p (point)))))
+	(insert "\n")
+	(setq rest (cdr rest)))
+(message "Generating call tree...(finding uncalled functions...)")
+(setq rest byte-compile-call-tree)
+(let ((uncalled nil))
+	(while rest
+	  (or (nth 1 (car rest))
+	      (null (setq f (car (car rest))))
+	      (byte-compile-fdefinition f t)
+	      (commandp (byte-compile-fdefinition f nil))
+	      (setq uncalled (cons f uncalled)))
+	  (setq rest (cdr rest)))
+	(if uncalled
+	    (let ((fill-prefix "  "))
+	      (insert "Noninteractive functions not known to be called:\n  ")
+	      (setq p (point))
+	      (insert (mapconcat 'symbol-name (nreverse uncalled) ", "))
+	      (fill-region-as-paragraph p (point)))))
+)
+(message "Generating call tree...done.")
+))
+;;; by crl@newton.purdue.edu
+;;;  Only works noninteractively.
+;;;###autoload
+(defun batch-byte-compile ()
+"Run `byte-compile-file' on the files remaining on the command line.
+Use this from the command line, with `-batch';
+it won't work in an interactive Emacs.
+Each file is processed even if an error occurred previously.
+For example, invoke \"emacs -batch -f batch-byte-compile $emacs/ ~/*.el\""
+;; command-line-args-left is what is left of the command line (from
+;; startup.el)
+(defvar command-line-args-left)	;Avoid 'free variable' warning
+(if (not noninteractive)
+(error "`batch-byte-compile' is to be used only with -batch"))
+(let ((error nil))
+(while command-line-args-left
+(if (file-directory-p (expand-file-name (car command-line-args-left)))
+	  (let ((files (directory-files (car command-line-args-left)))
+		source dest)
+	    (while files
+	      (if (and (string-match emacs-lisp-file-regexp (car files))
+		       (not (auto-save-file-name-p (car files)))
+		       (setq source (expand-file-name
+				     (car files)
+				     (car command-line-args-left)))
+		       (setq dest (byte-compile-dest-file source))
+		       (file-exists-p dest)
+		       (file-newer-than-file-p source dest))
+		  (if (null (batch-byte-compile-1 source))
+		      (setq error t)))
+	      (setq files (cdr files))))
+	(if (null (batch-byte-compile-1 (car command-line-args-left)))
+	    (setq error t)))
+(setq command-line-args-left (cdr command-line-args-left)))
+(message "Done")
+(kill-emacs (if error 1 0))))
+(defun batch-byte-compile-1 (file)
+(condition-case err
+(progn (byte-compile-file file) t)
+(error
+(princ ">>Error occurred processing ")
+(princ file)
+(princ ": ")
+(if (fboundp 'display-error) ; XEmacs 19.8+
+	 (display-error err nil)
+(princ (or (get (car err) 'error-message) (car err)))
+(mapcar '(lambda (x) (princ " ") (prin1 x)) (cdr err)))
+(princ "\n")
+nil)))
+;;;###autoload
+(defun batch-byte-recompile-directory-norecurse ()
+"Same as `batch-byte-recompile-directory' but without recursion."
+(setq byte-recompile-directory-recursively nil)
+(batch-byte-recompile-directory))
+;;;###autoload
+(defun batch-byte-recompile-directory ()
+"Runs `byte-recompile-directory' on the dirs remaining on the command line.
+Must be used only with `-batch', and kills Emacs on completion.
+For example, invoke `xemacs -batch -f batch-byte-recompile-directory .'."
+;; command-line-args-left is what is left of the command line (startup.el)
+(defvar command-line-args-left)	;Avoid 'free variable' warning
+(if (not noninteractive)
+(error "batch-byte-recompile-directory is to be used only with -batch"))
+(or command-line-args-left
+(setq command-line-args-left '(".")))
+(let ((byte-recompile-directory-ignore-errors-p t))
+(while command-line-args-left
+(byte-recompile-directory (car command-line-args-left))
+(setq command-line-args-left (cdr command-line-args-left))))
+(kill-emacs 0))
+(make-obsolete 'elisp-compile-defun 'compile-defun)
+(make-obsolete 'byte-compile-report-call-tree 'display-call-tree)
+;; other make-obsolete calls in obsolete.el.
+(provide 'byte-compile)
+(provide 'bytecomp)
+;;; report metering (see the hacks in bytecode.c)
+(if (boundp 'byte-code-meter)
+(defun byte-compile-report-ops ()
+(defvar byte-code-meter)
+(with-output-to-temp-buffer "*Meter*"
+	(set-buffer "*Meter*")
+	(let ((i 0) n op off)
+	  (while (< i 256)
+	    (setq n (aref (aref byte-code-meter 0) i)
+		  off nil)
+	    (if t ;(not (zerop n))
+		(progn
+		  (setq op i)
+		  (setq off nil)
+		  (cond ((< op byte-nth)
+			 (setq off (logand op 7))
+			 (setq op (logand op 248)))
+			((>= op byte-constant)
+			 (setq off (- op byte-constant)
+			       op byte-constant)))
+		  (setq op (aref byte-code-vector op))
+		  (insert (format "%-4d" i))
+		  (insert (symbol-name op))
+		  (if off (insert " [" (int-to-string off) "]"))
+		  (indent-to 40)
+		  (insert (int-to-string n) "\n")))
+	    (setq i (1+ i)))))))
+;; To avoid "lisp nesting exceeds max-lisp-eval-depth" when bytecomp compiles
+;; itself, compile some of its most used recursive functions (at load time).
+;;
+(eval-when-compile
+(or (compiled-function-p (symbol-function 'byte-compile-form))
+(assq 'byte-code (symbol-function 'byte-compile-form))
+(let ((byte-optimize nil) ; do it fast
+	   (byte-compile-warnings nil))
+(mapcar '(lambda (x)
+		  (or noninteractive (message "compiling %s..." x))
+		  (byte-compile x)
+		  (or noninteractive (message "compiling %s...done" x)))
+	       '(byte-compile-normal-call
+		 byte-compile-form
+		 byte-compile-body
+		 ;; Inserted some more than necessary, to speed it up.
+		 byte-compile-top-level
+		 byte-compile-out-toplevel
+		 byte-compile-constant
+		 byte-compile-variable-ref))))
+nil)
+;;; bytecomp.el ends here

Mercurial > hg > xemacs-beta

comparison lisp/bytecomp/bytecomp.el @ 0:376386a54a3c r19-14