building error of latest emacs on Windowxp

[zwz]

I checked out the latest emacs today, and some error came up during
"make bootstrap":

make[1]: entering directory `/d/git/emacs/lib-src'
mkdir "oo-spd"
mkdir "oo-spd/i386"
echo oo-spd/i386 > stamp_BLD
echo config.nt has changed. Re-run configure.bat.
config.nt has changed. Re-run configure.bat.
exit -1
make[1]: *** [../src/config.h] Error 255
make[1]: leaving directory `/d/git/emacs/lib-src'
make[1]: *** [bootstrap-gmake] Error 2

Of course I have run configure.bat before I run make bootstrap.