Hi Harmut,

On Tue, 21 Jan 2020 22:27:46 +0100
Hartmut Goebel <h.goebel@crazy-compilers.com> wrote:

> +    (build-system qt-build-system)

> +         (add-before 'check 'check-setup
> +           (lambda _
> +             (setenv "QT_QPA_PLATFORM" "offscreen")
> +             #t)))))

Hmm, would it make sense to do that automatically in qt-build-system ?