How To Install compat-flex on Fedora 36

In this tutorial we learn how to install compat-flex in Fedora 36. compat-flex is Legacy version of flex, a tool for creating scanners

Introduction

In this tutorial we learn how to install compat-flex on Fedora 36.

What is `compat-flex`

This is legacy version of flex, a program that generates scanners. Scanners are programs which can recognize lexical patterns in text. Flex takes pairs of regular expressions and C code as input and generates a C source file as output. The output file is compiled and linked with a library to produce an executable. The executable searches through its input for occurrences of the regular expressions. When a match is found, it executes the corresponding C code. Flex was designed to work with both Yacc and Bison, and is used by many programs as part of their build process. You should install flex if you are going to use your system for application development.

We can use yum or dnf to install compat-flex on Fedora 36. In this tutorial we discuss both methods but you only need to choose one of method to install compat-flex.

Install compat-flex on Fedora 36 Using dnf

Update yum database with dnf using the following command.

sudo dnf makecache --refresh

After updating yum database, We can install compat-flex using dnf by running the following command:

sudo dnf -y install compat-flex

Install compat-flex on Fedora 36 Using yum

Update yum database with yum using the following command.

sudo yum makecache --refresh

After updating yum database, We can install compat-flex using yum by running the following command:

sudo yum -y install compat-flex

How To Uninstall compat-flex on Fedora 36

To uninstall only the compat-flex package we can use the following command:

sudo dnf remove compat-flex

compat-flex Package Contents on Fedora 36

/usr/bin/flex-2.5.4a
/usr/bin/flex-2.5.4a++
/usr/include/flex-2.5.4a
/usr/include/flex-2.5.4a/FlexLexer.h
/usr/lib/.build-id
/usr/lib/.build-id/db
/usr/lib/.build-id/db/ceb690b012ca0ccbc5c7e8ebb5ab75261f9435
/usr/lib64/flex-2.5.4a
/usr/lib64/flex-2.5.4a/libfl.a
/usr/share/doc/compat-flex
/usr/share/doc/compat-flex/COPYING
/usr/share/doc/compat-flex/NEWS
/usr/share/doc/compat-flex/README
/usr/share/doc/compat-flex/README.fedora
/usr/share/info/flex-2.5.4a.info.gz
/usr/share/man/man1/flex-2.5.4a++.1.gz
/usr/share/man/man1/flex-2.5.4a.1.gz

References

compat-flex website

Summary

In this tutorial we learn how to install compat-flex on Fedora 36 using yum and [dnf]((/fedora/36/dnf/).