I had to install these two additional packages on Ubuntu 20.04.6 LTS. libwayland-dev libxkbcommon-dev

Working-on-GNU-Linux.md

@@ -17,7 +17,7 @@ Optionally, you could use **CMake** building system.
 You need to install some required libraries; **ALSA** for audio, **Mesa** for OpenGL accelerated graphics and **X11** for windowing system.
 
 ##### Ubuntu
-    sudo apt install libasound2-dev libx11-dev libxrandr-dev libxi-dev libgl1-mesa-dev libglu1-mesa-dev libxcursor-dev libxinerama-dev
+    sudo apt install libasound2-dev libx11-dev libxrandr-dev libxi-dev libgl1-mesa-dev libglu1-mesa-dev libxcursor-dev libxinerama-dev libwayland-dev libxkbcommon-dev
 
 ##### Fedora
     sudo dnf install alsa-lib-devel mesa-libGL-devel libX11-devel libXrandr-devel libXi-devel libXcursor-devel libXinerama-devel libatomic