Command explanations
There may be a good reason for abandoning the normal BLFS convention
of using --prefix=/usr here. If you are installing DHCP, it is likely that
it is required during the boot process and /usr may be network mounted in
which case, dhcpcd wouldn't be available due to being on the network!
Therefore, depending on your situation, you may want it to be installed
in /sbin or /usr/sbin.