The GNU Make Reference Guide provides beginners with a simple introduction to the basics, and experts will find advanced details they need.
In this you will see the following things below.
1 Overview of make
2 An Introduction to Makefiles
3 Writing Makefiles
4 Writing Rules
5 Writing Recipes in Rules
6 How to Use Variables
7 Conditional Parts of Makefiles
8 Functions for Transforming Text
9 How to Run make
10 Using Implicit Rules
11 Using make to Update Archive Files
12 Extending GNU make
13 Integrating GNU make
14 Features of GNU make
15 Incompatibilities and Missing Features
16 Makefile Conventions
You will find all this section offline without any internet connection and lean DB easily anywhere and anytime.