w3 build fails with 21.1

[Daniel Mahler]

This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English, because the Emacs maintainers do not have
translators to read other languages for them.

Your bug report will be posted to the bug-gnu-emacs@gnu.org mailing list,
and to the gnu.emacs.bug news group.

In GNU Emacs 21.1.1 (i686-pc-linux-gnu, X toolkit)
 of 2001-10-23 on mcallister.cyc.com
configured using `configure  --prefix=/home/mahler/local/STOW/emacs-21.1'
Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: nil
  locale-coding-system: nil
  default-enable-multibyte-characters: t

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

w3 stopped working after installing 21.1.
It used to work with 20.7.
Tried to compile w3 from the shell:

 ./configure --with-emacs --prefix=$STOW/w3-4.0pre.46
loading cache ./config.cache
checking for a BSD compatible install... /usr/bin/install -c
checking for texi2html... texi2html
checking for xemacs... emacs
checking for makeinfo... makeinfo
checking for install-info... install-info
checking if emacs is really XEmacs... no
checking where .elc files should go... $(datadir)/emacs/site-lisp
checking for emacs version... 21.1
checking for acceptable custom library... 
/home/mahler/local/STOW/emacs-21.1/share/emacs/21.1/lisp/
checking for recent gnus version... no
checking how to rebuild custom autoloads... $(EMACS) $(BATCHFLAGS) $(DEPS) -f 
emacs-batch-build-custom-load $(srcdir)
creating ./config.status
creating Makefile
creating etc/Makefile
creating texi/Makefile
creating lisp/Makefile
creating lisp/w3-cfg.el
 
Sucessfully configured Emacs/W3
Using custom package installed in: 
/home/mahler/local/STOW/emacs-21.1/share/emacs/21.1/lisp/
Emacs/W3 will be compiled with: emacs
 
To finish building Emacs/W3 type 'make' now.
To install Emacs/W3 type 'make install'.
To create autoloads in '/home/mahler/.emacs' type 'make dotemacs'

$ make
cd lisp && make w3
make[1]: Entering directory 
`/mcallister0/home/mahler/local/STOW/local.orig/SRC/w3-4.0pre.46/lisp'
GNUSDIR=no WIDGETDIR=/home/mahler/local/STOW/emacs-21.1/share/emacs/21.1/lisp/ 
W3SRCDIR=. emacs -batch -q -no-site-file -l ./docomp.el -l ./url-vars.el -l 
./w3-vars.el -f batch-byte-compile mule-sysdp.el
Wrong type argument: keymapp, nil
make[1]: *** [mule-sysdp.elc] Error 255
make[1]: Leaving directory 
`/mcallister0/home/mahler/local/STOW/local.orig/SRC/w3-4.0pre.46/lisp'
make: *** [w3] Error 2


Recent input:
<scroll-bar-movement> <scroll-bar-movement> <mouse-2> 
<help-echo> <down-mouse-2> <mouse-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <scroll-bar-movement> <scroll-bar-movement> 
<scroll-bar-movement> <mouse-2> <help-echo> <down-mouse-2> 
<mouse-2> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <help-echo> <help-echo> <help-echo> <help-echo> 
<help-echo> <menu-bar> <help-menu> <report-emacs-b
ug>

Recent messages:
call-interactively: Quit
Loading dired...done
Reading directory /mcallister0/home/mahler/local/etc/...done
Reading directory /mcallister0/home/mahler/local/...done
Reading directory /mcallister0/home/mahler/local/share/...done
Reading directory /mcallister0/home/mahler/local/share/emacs/...done
Reading directory /mcallister0/home/mahler/local/share/emacs/site-lisp/...done
line-move: End of buffer [5 times]
line-move: Beginning of buffer [3 times]
Loading emacsbug...done