Now that Wayland has landed in Community I can build Mesa with support for Wayland. This leads to a new dependency in libegl:
libegl E: Dependency wayland detected and not included (libraries ['usr/lib/libwayland-server.so.0', 'usr/lib/libwayland-client.so.0'] needed in files ['usr/lib/egl/egl_gallium.so','usr/lib/libEGL.so.1.0.0'])
Since cairo will also depend on that libegl then every system will pull in Wayland. Is this really needed? If we can't build it in a different way we directly need to move Wayland to extra.