How to Install a C Compiler on Linux
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How to Install a C Compiler on Linux
Published 16 hours ago
Get started with C programming by installing an open-source C compiler on your Linux machine.
Whether you're coding in C or building a Linux program from the source, you'll have to install a C compiler. The two major ones on Linux are the venerable GCC and the newer Clang.
Here's how you can install them both on your machine.
Installing GCC on Linux
GCC, or the GNU Compiler Collection, has been around since the 1980s, predating Linux itself. Not only does it compile C programs, but also handles C++, Objective-C, Objective-C++, Fortran, ADA, and Go. A lot of open-source projects still rely on it, including the Linux kernel.
To install GCC along with the required C libraries on Debian and Ubuntu, install the build-essential package:
sudo apt install build-essential
On Fedora and other RPM-based distros:
sudo dnf install gcc
And on Arch Linux:
sudo pacman -S gcc
On any other distribution, you can usually search for "GCC" and you'll find a package for your system. This goes for Clang as well.
To compile a simple C program, such as the famous "Hello, World!", just go to the directory where you saved it and run the following command:
gcc hello.c
...where hello.c is the name of your program.
If the program is correct, GCC will output the compiled file as a.out in the current directory. To run it, type:
./a.out
Related: How to Print "Hello, World!" in the 20 Most Popular Programming Languages
Installing Clang on Linux
The newer kid on the block is the Clang compiler, developed as a front to the LLVM compiler by Apple, ARM, Sony, AMD, and others. Apple uses it as the compiler for its Xcode development environment for macOS.
Clang aims for compatibility with GCC, while increasing performance. It's popular because it's licensed under the Apache 2.0 License, which doesn't require developers to release their source code if they make modifications.
You can install Clang using your package manager. On Debian and Ubuntu, just install the clang package:
sudo apt install clang
On Fedora/CentOS:
sudo dnf install clang
To install Clang on Arch-based distributions:
sudo pacman -S clang
Compiling works the same as with GCC:
clang hello.c
Related: Basic Programming Principles Every Programmer Should Know
Now You Can Compile C Programs in Linux
Whether you're just learning C or are an experienced C programmer, you can easily install two major C compilers for Linux—GCC and Clang.
If you want to explore C programming, here are some more tips on the language that will give you a headstart.
About The Author
David Delony (59 Articles Published)
David is a freelance writer based in the Pacific Northwest, but originally hailing from the Bay Area. He has been a technology enthusiast since childhood. David's interests include reading, watching quality TV shows and movies, retro gaming, and record collecting.
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