xwayland: always build explict sync support
Add drm-uapi from Mesa to remove old kernel conditionals. For example, FreeBSD supports nvidia-drm.ko but not nouveau.ko and doesn't expose kernel DRM headers.
CC @ekurzinger @manu
Add drm-uapi from Mesa to remove old kernel conditionals. For example, FreeBSD supports nvidia-drm.ko but not nouveau.ko and doesn't expose kernel DRM headers.
CC @ekurzinger @manu