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A Makefile is a special file used by the make utility to automate the build process of a project. It defines a set of tasks to be executed, such as compiling source code into executable binaries. This is particularly useful for managing large projects with multiple dependencies.
Basic Structure of a Makefile
A Makefile consists of rules and variables. Each rule has the following structure:
target: prerequisitesrecipetarget: The file to be generated by make.
prerequisites: Files that are needed to create the target.
recipe: Commands to generate the target.
Example: Simple Makefile
Let's create a simple Makefile for a C project with the following files:
main.c
functions.c
functions.h
Directory Structure
project/├── Makefile├── main.c├── functions.c└── functions.hContents of main.c
#include <stdio.h>#include "functions.h"int main() {printf("Sum: %d\n", add(5, 3));return 0;}Contents of functions.c
#include "functions.h"int add(int a, int b) {return a + b;}Contents of functions.h
What is a Makefile and how does it work?
Aug 22, 2018 · Learn how to use make and Makefile to automate tasks and run programs more efficiently. This article covers the syntax, variables, patterns, and functions of Makefile with basic and advanced examples.
Makefile Tutorial By Example
Makefiles are used to help decide which parts of a large program need to be recompiled. In the vast majority of cases, C or C++ files are compiled. Other languages typically have their own tools that serve a similar purpose as Make.
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