Installing Plan9Port on Ubuntu

Packages required:

sudo apt install libx11-dev libxext-dev libxt-dev libfontconfig1-dev build-essential

Wayland/Gnome issues:

cannot handle selection request for

This error appears to just be informational as cut/paste/snarfing operates as one would expect. As such, it can be silenced by editing:

./src/cmd/snarfer/snarfer.c:176

and

./src/cmd/devdraw/x11-itrans.c:568

along with their relevant if's on the preceding line.