Also to get the things needed for compiling:
sudo apt-get install build-essential xserver-xorg-dev x11proto-xf86dri-dev
x11proto-xf86dga-dev x11proto-xf86vidmode-dev libxxf86dga-dev
libxcb-xf86dri0-dev libxpm-dev libxxf86vm-dev libsdl2-dev libsdl2-image-dev
libclalsadrv-dev libasound2-dev libxext-dev libjpeg-turbo8-dev git-core unzip
wget
Note: If using i386 architecture, you can replace libdsl1.2debian with
libsdl1.2debian:i386 in the list above. On Debian, use libjpeg8-dev if
libjpeg-turbo8-dev isn’t available in the package repositories. To be able
to download maps from game servers when using Xonotic for online gaming, you
will also need curl installed on your system.
For Fedora and other RPM based distro’s, compiling dependencies are as
follows:
x11-proto-devel libalsa2-static-devel libjpeg62-devel libjpeg62-static-devel
libSDL2-devel
For Archlinux the dependencies can be installed via the following command:
sudo pacman -S alsa-lib curl libjpeg-turbo libmodplug libpng libvorbis libxpm
libxxf86dga libxxf86vm sdl2 unzip
