How To Install Clang on AlmaLinux 9

In this tutorial, we will show you how to install Clang on AlmaLinux 9. Clang is an integral part of the LLVM compiler infrastructure project, serving as a front-end for various programming languages. Known for its modular architecture, extensive diagnostics, and focus on generating high-quality error messages, Clang empowers developers to write cleaner, more efficient code. By leveraging Clang’s language features and tooling, developers can enhance productivity and maintain code quality throughout the development lifecycle.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the Clang on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux or RHEL-based.

Prerequisites

• A server running one of the following operating systems: AlmaLinux 9.
• It’s recommended that you use a fresh OS install to prevent any potential issues.
• SSH access to the server (or just open Terminal if you’re on a desktop).
• An active internet connection. You’ll need an internet connection to download the necessary packages and dependencies.
• To run AlmaLinux 9 smoothly, a minimum of 1 GB RAM and a dual-core processor are recommended. Additionally, allocate at least 10 GB of free disk space to accommodate the operating system and development tools.
• You’ll need root or sudo privileges to install Clang and make system-wide changes. Make sure you have the necessary permissions before starting the installation process.

Install Clang on AlmaLinux 9

Step 1. Update Your System.

Before proceeding with the installation, it’s crucial to update your AlmaLinux 9 system to ensure all packages are up to date. Open a terminal and execute the following command:

sudo dnf clean all
sudo dnf update

This command will fetch and install the latest available updates, providing a solid foundation for the Clang installation process.

Step 2. Enabling Required Repositories.

To install Clang on AlmaLinux 9, you’ll need to enable the Extra Packages for Enterprise Linux (EPEL) repository. This repository provides additional packages not included in the base AlmaLinux distribution. To enable EPEL, run the following command:

sudo dnf install epel-release

After enabling the EPEL repository, verify that it is properly configured by running:

dnf repolist

Step 3. Installing Clang on AlmaLinux 9.

• Using DNF Package Manager

With the EPEL repository enabled, you can now install Clang using the DNF package manager. Execute the following command in the terminal:

sudo dnf install clang

After the installation completes, verify that Clang is successfully installed by checking its version:

clang --version

This command will display the installed version of Clang, confirming that the installation was successful.

Step 4. Configuring Clang.

• Setting Up Environment Variables

To use Clang from any terminal session, you may need to add its binary directory to your system’s PATH environment variable. Open the ~/.bashrc file in a text editor:

nano ~/.bashrc

Append the following line to the file, replacing /path/to/clang with the actual path to the Clang binary directory (if not already added during installation):

source ~/.bashrc

• Testing Clang Installation

Create a simple C++ program to test the Clang installation. Open a text editor and create a file named hello.cpp with the following content:

#include 

int main() {
    std::cout << "Hello, idroot.us of Clang on AlmaLinux 9!" << std::endl;
    return 0;
}

Save the file and compile it using Clang:

clang++ hello.cpp -o hello

If the compilation succeeds without any errors, run the resulting executable:

./hello

You should see the output: “Hello, idroot.us of Clang on AlmaLinux 9!”

Congratulations! You have successfully installed Clang. Thanks for using this tutorial for installing the Clang on your AlmaLinux 9 system. For additional help or useful information, we recommend you check the official Clang website.