build: Xwayland with GLAMOR requires libxshmfence
Without libxshmfence, Xwayland cannot build with GLAMOR support.
Make sure to catch that requirement in meson rather than failing the build later.
Closes: #1626 (closed)
Without libxshmfence, Xwayland cannot build with GLAMOR support.
Make sure to catch that requirement in meson rather than failing the build later.
Closes: #1626 (closed)