#### Linux From Scratch - Version 12.3-systemd

### Chapter 8. Installing Basic System Software

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# 8.13. M4-1.4.19

The M4 package contains a macro processor.

Approximate build time: 0.3 SBU
Required disk space: 49 MB

## 8.13.1. Installation of M4

Prepare M4 for compilation:

    ./configure --prefix=/usr

Compile the package:

    make

To test the results, issue:

    make check

Install the package:

    make install

## 8.13.2. Contents of M4

Installed program: m4

### Short Descriptions

m4 | Copies the given files while expanding the macros that they contain. These macros are either built-in or user-defined and can take any number of arguments. Besides performing macro expansion, m4 has built-in functions for including named files, running Unix commands, performing integer arithmetic, manipulating text, recursion, etc. The m4 program can be used either as a front end to a compiler or as a macro processor in its own right

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