I think the suggestion was to use Qt5Sparql as modulename, but keep QtSparql as the global header name, so it'd be `/usr/include/Qt5Sparql/QtSparql`. I'd be happy with that, I think..

I think Qt5 handles this by installing to a separate path (along the lines of `/usr/include/qt5/`) and keeping module names the same. I'm not sure that's necessary, but it would mean that `<QtSparql/...>` includes could be unchanged too.