如何从GitHub存储库安装snes9x?

How I might install snes9x on Ubuntu from the GitHub repository? https://github.com/snes9xgit/snes9x

There's no apt-get install command I can do. There seem to be two possible Linux compatible version of the program (GTK or X11)

Do we have to clone the repository and compile from the source? Is there a *.deb file already?