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How To Install Clang on Debian 12

Install Clang on Debian 12

In this tutorial, we will show you how to install Clang on Debian 12. Clang is a powerful compiler front end, supporting a variety of programming languages including C, C++, Objective-C, and Objective-C++. As a key component of the LLVM infrastructure, Clang offers a plethora of features such as static analysis tools and refactoring capabilities.

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 Clang on a Debian 12 (Bookworm).

Prerequisites

  • A server running one of the following operating systems: Debian 12 (Bookworm).
  • 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 for Clang.
  • A non-root sudo user or access to the root user. We recommend acting as a non-root sudo user, however, as you can harm your system if you’re not careful when acting as the root.

Install Clang on Debian 12 Bookworm

Step 1. Before installing any new software, it’s always a good practice to update the system’s package list. This ensures that you have the latest versions of all packages, which can help prevent compatibility issues. To update your system’s package list, open a terminal and run the following command:

sudo apt update
sudo apt upgrade

Step 2. Install Clang on Debian 12.

  • Install Clang from the Main Debian Repositories.

Run the following command below to install Install Clang:

sudo apt install clang

Verify the installation by typing the following command:

clang --version
  • Install the Latest Clang from the LLVM Repositories.

To install a more recent Clang release, add the official LLVM package repositories then install clang-17 package.

First, run the installation script to add the LLVM repository:

curl https://apt.llvm.org/llvm.sh | sudo bash -s main

Next, Update your package index to see the new clang-17 package and install it:

sudo apt update
sudo apt install clang-17

Make Clang 17 the default instead of older system versions:

sudo update-alternatives --install /usr/bin/clang clang /usr/bin/clang-17 100
sudo update-alternatives --install /usr/bin/clang++ clang++ /usr/bin/clang++-17 100 

Verify you have Clang 17:

clang --version

Finally, check that compilation works by creating a simple C or C++ file like:

int main() {
  return 0;
}

Then run:

clang test.cpp -o test

This compiles test.cpp into a test executable without errors. Running ./test should output nothing.

Congratulations! You have successfully installed Clang. Thanks for using this tutorial for installing the latest version of Clang on Debian 12 Bookworm. For additional help or useful information, we recommend you check the official Clang website.

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r00t

r00t is a seasoned Linux system administrator with a wealth of experience in the field. Known for his contributions to idroot.us, r00t has authored numerous tutorials and guides, helping users navigate the complexities of Linux systems. His expertise spans across various Linux distributions, including Ubuntu, CentOS, and Debian. r00t's work is characterized by his ability to simplify complex concepts, making Linux more accessible to users of all skill levels. His dedication to the Linux community and his commitment to sharing knowledge makes him a respected figure in the field.
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