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automation tool

2022-08-08 05:30:00 【asibble】

Use of Makefile

Makefile contains all the rules and targets, and make is a tool to interpret the rules of the Makefile in order to complete the target.
makefile is a file, make is a tool (similar to the gcc compiler, etc.).

Writing of Makefile

The makefile can be capitalized or lowercase.The things in the file are the corresponding dependencies,
In the example main and main.c are dependent methods.

Please add image description

The first one above is the dependency, and the first line is written like this.In the second line, use the [tab] key to start, and the space bar cannot be used for judgment.

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The first and second lines generate a file.make directly executes the first and second lines of commands.

.PHONY is a pseudo target that can be executed regardless of whether the file is old or new.The basic way of using the language is the same as the shell commands.