compiling emacs/nt from cvs using cygwin tools

[emacs user]

Hi...

having read various emacs instruction files, I got emacs from cvs, got
into cygwin bash prompt on a cygwin xterm, and
cd emacs
make maintainer-clean
cd emacs/nt
configure.bat
make bootstrap.

things went well for quite a while, until I get the following.  any
hints are greatly appreciated
if there is an easier way to compile emacs from cvs, I am interested
too...  thanks!  EU


/usr/local/emacs/lisp/../update-subdirs /usr/local/emacs/lisp; \
        for file in calc calendar emacs-lisp emulation erc eshell gnus
international language mail mh-e net obsolete play progmodes term
textmodes url; do \
           /usr/local/emacs/lisp/../update-subdirs $file; \
        done;
Directories: . calc calendar emacs-lisp emulation erc eshell gnus
international language mail mh-e net obsolete play progmodes term
textmodes url
"./../bin/emacs.exe" -batch --no-init-file --no-site-file --multibyte
-l autoload \
                --eval '(setq find-file-hook nil
find-file-suppress-same-file-warnings t)' \
                -f w32-batch-update-autoloads
"/usr/local/emacs/lisp/loaddefs.el" . calc calendar emacs-lisp
emulation erc eshell gnus international language mail mh-e net obsolete
play progmodes term textmodes url
Cannot open load file: encoded-kb
make[1]: *** [autoloads] Error 255
make[1]: Leaving directory `/usr/local/emacs/lisp'
make: *** [bootstrap-gmake] Error 2
eli@cata:/usr/local/emacs/nt $