usr/src/cmd/lpr/makefile

lpr:    lpr.c spool.c
        cc -n -s -O lpr.c -o lpr

lpd:    lpd.c daemon.c daemon0.c
        cc -n -s -O lpd.c -o lpd

install:
        cp lpr /bin/lpr
        cp lpd /usr/lib/lpd
        rm lpr
        rm lpd
        echo make sure /etc/rc contains
        echo rm /usr/spool/lpd/lock; /usr/lib/lpd
        mkdir /usr/spool
        mkdir /usr/spool/lpd