lastlog feature is broken

This problem was first brought to my attention on the Linux From Scratch 
mailing list.  See the following threads:

http://archives.linuxfromscratch.org/mail-archives/lfs-dev/2004-March/044238.html
http://archives.linuxfromscratch.org/mail-archives/lfs-dev/2004-April/044253.html

I've just confirmed that this bug is still present in shadow-4.0.6.

For reference, I am not using PAM and I'm building shadow using:

./configure --prefix=/usr --libdir=/usr/lib --mandir=/usr/share/man
make
make install
cp etc/{limits,login.access} /etc
cp etc/login.defs.linux /etc/login.defs

Jack Brown