This is only required if dri3 is enabled in the server. It shouldn't be included unconditionally. Arguably this should be put in openembedded-core, but for now it's safe to put here.
Fixes following: ERROR: Problem encountered: DRI3 requested, but xshmfence not found Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>