To get the most information from this book you should have already read:
ChorusOS 4.0 Introduction
ChorusOS 4.0 Installation Guide for Solaris Hosts
ChorusOS 4.0 Installation Guide for Windows NT Hosts
The following man pages: make(1S), m4(1), mkmerge(1CC), configure(1CC), ChorusOSMkMf(1CC), and configurator(1CC).