- Do not put the chroot commands in $PROGNAME-commands, but rather
in a separate directory chroot-scripts
- Use the commands in the chroot-scripts directory to generate the CHROOT
variables in Makefile
- The commands are extracted to $PROGNAME-commands only if they do not
have role="nodump attribute and they do not begin with "chroot" (for
compatibility with previous books where chroot commands did not have
the role="nodump" attribute.