tar -xjf shadow-4.1.5.1.tar.bz2
cd shadow-4.1.5.1
sed -i 's/groups$(EXEEXT) //' src/Makefile.in
find man -name Makefile.in -exec sed -i 's/groups\.1 / /' {} \;
sed -i -e 's@#ENCRYPT_METHOD DES@ENCRYPT_METHOD SHA512@' \
       -e 's@/var/spool/mail@/var/mail@' etc/login.defs
sed -i 's@DICTPATH.*@DICTPATH\t/lib/cracklib/pw_dict@' \
    etc/login.defs
./configure --sysconfdir=/etc --with-libcrack
make
make install
mv -v /usr/bin/passwd /bin
cd ..
rm -fr shadow-4.1.5.1