I have some simple SVG artwork (icon and glyph kind of things) which I want to display in an OpenGL app (developing in C++ on Debian, using Qt).
The obvious solution
Qt can do this. QSvgRenderer can take an SVG and paint it over a QGLWidget Its possibly you'll need to fiddle around with the paintEvent() abit if you want to draw anything else on the QGLWidget other than the SVG.
QGLWidget
paintEvent()