Command explanations
make DICTPATH=/usr/lib/cracklib_dict SRCDICTS=/usr/share/dict/words install:
Builds the libcrack library and forces it to look at
/usr/share/dict for word lists, and puts the
cracklib dictionary in /usr/lib/cracklib_dict.
install -m644 cracklib/libcrack.a /usr/lib:
Installs the library in /usr/lib.
install -m644 cracklib/crack.h /usr/include:
Installs the header file in /usr/include.
install -m754 util/{mkdict,packer,create_cracklib_dict} /usr/sbin:
Install the utils into /usr/sbin.