The easiest and most stable way to "download" GLib 2.0 is through your system’s official repositories. This ensures the library is compatible with your kernel and other system dependencies. Ubuntu / Debian / Mint

By using your package manager, you get security updates automatically. Only choose the source download if you are an advanced user requiring a specific, unreleased, or patched version of the library.

If you need a specific version of GLib 2.0 that isn't in your package manager, or if you are working on an embedded system, you should download the source tarball. gnome.org GitLab Repository: gnome.org How to Compile from Source

On Debian-based systems, the package is split into the runtime library and the development headers ( -dev ). sudo apt update sudo apt install libglib2.0-dev Use code with caution. Fedora / CentOS / RHEL Red Hat-based systems use the -devel suffix. sudo dnf install glib2-devel Use code with caution. Arch Linux Arch usually keeps GLib up to date as a core dependency. sudo pacman -S glib2 Use code with caution. 2. Downloading Source Code (For Custom Builds)