compilation error at w3m-symbol.el: "Unbalanced parentheses"

[Pawel <null7@xxxxx>]

Hallo
my config:
GNU Emacs 21.3.1 (i386-redhat-linux-gnu, X toolkit, Xaw3d scroll bars) of 2005-02-04 on bugs.build.redhat.com

prompt# pwd
/root/emacs-packages/emacs-w3m-1.4.4

prompt# ./configure
checking whether make sets $(MAKE)... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking for makeinfo... makeinfo
checking for texi2dvi... texi2dvi
checking for ptex... ptex
checking for jbibtex... jbibtex
checking for egrep... egrep
checking for emacs... /usr/bin/emacs
checking what a flavor does /usr/bin/emacs have... Emacs 21
checking prefix for /usr/bin/emacs... /usr
checking where lisp files should go... $(prefix)/share/emacs/site-lisp/w3m/
checking where icon files should go... $(prefix)/share/emacs/21.3/etc/images/w3m
checking for regexp-opt... /usr/share/emacs/21.3/lisp/emacs-lisp/regexp-opt.elc
configure: creating ./config.status
config.status: creating Makefile
config.status: creating doc/Makefile

prompt# make
env test ! -f w3m-util.elc -o w3m-util.elc -nt w3m-util.el || make clean
env test ! -f w3m-proc.elc -o w3m-proc.elc -nt w3m-proc.el || make clean
/usr/bin/emacs -q -no-site-file -batch -l ./w3mhack.el NONE -f w3mhack-compile
Generating autoloads for w3m-antenna.el...
Generating autoloads for w3m-antenna.el...done
Generating autoloads for w3m-bookmark.el...
Generating autoloads for w3m-bookmark.el...done
Generating autoloads for w3m-cookie.el...
Generating autoloads for w3m-cookie.el...done
Generating autoloads for w3m-dtree.el...
Generating autoloads for w3m-dtree.el...done
Generating autoloads for w3m-filter.el...
Generating autoloads for w3m-filter.el...done
Generating autoloads for w3m-form.el...
Generating autoloads for w3m-form.el...done
Generating autoloads for w3m-lnum.el...
Generating autoloads for w3m-lnum.el...done
Generating autoloads for w3m-namazu.el...
Generating autoloads for w3m-namazu.el...done
Generating autoloads for w3m-perldoc.el...
Generating autoloads for w3m-perldoc.el...done
Generating autoloads for w3m-search.el...
Generating autoloads for w3m-search.el...done
Generating autoloads for w3m-symbol.el...
Scan error: "Unbalanced parentheses", 4160, 8206
make: *** [lisp] Error 255

Have You got any idea, what might be the reason of my problem ?

Greetings.