How to write makefile in linux for C

How to write makefile in linux for c

Share		Tweet

Updated: July 12, 2020

Related online test

How to write makefile in linux for c

Code:AC000013

By: admin

Article contents

Creating makefile, build project
Exercises,solutions

Learn how to create a makefile for a software project, build the project and create executables for the project using makefile.

Online courses related to this article

Course description

Learn to develop embedded systems, interfacing electronic peripherals through real time projects and get required practical skills for software jobs

Course description

Learn firmware development theory, applications, get practical skills from online tests, projects and earn certificate for software jobs

Course description

Learn to develop software solutions for linux environment, implement requirements through real time projects and get required practical skills for software jobs

Course description

Learn, test your C programming skills and earn certificate for software jobs

Creating Linux makefile, build project images

Frequently asked topics, concepts.

Back to top

What is a makefile?

    Make is Unix utility that is designed to start execution of a makefile. A makefile is a special file, containing shell commands, that you create and name makefile. While in the directory containing this makefile, you will type make and the commands in the makefile will be executed. If you create more than one makefile, be certain you are in the correct directory before typing make.
    Make keeps track of the last time files (normally object files) were updated and only updates those files which are required (ones containing changes) to keep the sourcefile up-to-date. If you have a large program with many source and/or header files, when you change a file on which others depend, you must recompile all the dependent files. Without a makefile, this is an extremely time-consuming task.
    As a makefile is a list of shell commands, it must be written for the shell which will process the makefile. A makefile that works well in one shell may not execute properly in another shell.
    The makefile contains a list of rules. These rules tell the system what commands you want to be executed. Most times, these rules are commands to compile(or recompile) a series of files. The rules, which must begin in column 1, are in two parts. The first line is called a dependency line and the subsequent line(s) are called actions or commands. The action line(s) must be indented with a tab.

basic.c program illustrating makefile and applications.


#include <stdio.h>
#include "basic.h" 
int total,tot = 0;
 int main ()
 {
     printf("This is a simple C Program\n");
     total = sum(1,2);
     printf("Sum of two numbers is %d\n", total );
   return 0; 
 }

basic.h program to be used in makefile.


int sum (int, int);

basic1.c program to be used in makefile.


#include "basic.h" 
int sum (int a, int b)
{
  return a + b;
}

To Read Full Article

Subscribe courses or Pay Per Course & logged in

Exercises, Solutions

Back to top

Low	Write a c program function to calculate the circumference of a circle if the radius of the circle is passed to it.
Medium	Write a c program function to calculate the area of a circle if the radius of the circle is passed to it.
Low	Write a c program function to accept 2 integers and return the result after adding them and then dividing the result by 2.
High	Write C function to calculate the factorial of a number and illustrate the use of recursion.
Low	Write a c program function to compute (a+b)^2 where the value of a and b will be provided by the user.
Medium	Write a c program function to accept the principal, rate of interest, period of deposit and to calculate the simple interest.
Low	Write a c program function to calculate the sum of two integers where the two integers will be provided by the user.
Medium	Write a program for illustrating the use of inline function in c programming.
Medium	Write a c program function to accept the temperature in Deg Centigrade and convert it to Fahrenheit.

Want to contribute a new article? Write and upload your article information here.

Share		Tweet