AdaFontDemo
Ada Fonts is a minimalistic example of using freetype fonts in OpenGL
...It also uses Stephen Sangwine's PNG-IO package, and
thin bindings to OpenGL, SDL2.
More importantly, it shows how to encapsulate the scripts
and runtime libraries necessary to easily compile and run
on any computer running Windows, OS-X, or GNU/Linux.
The only 3rd-party tool required is an Ada compiler.