Olivier Fourdan 5c4bc3e462 xwayland: Do not enable DRI3 without eventfd ...

DRI3 version 1.4 which supports explicit buffers synchronization relies
on the eventfd interface.

As result, building would fail with DRI3 enabled on platforms without
the eventfd interface.

Check for the availability of the sys/eventfd.h header and disable DRI3
support if missing.

Signed-off-by: Olivier Fourdan <ofourdan@redhat.com>
Part-of: <https://gitlab.freedesktop.org/xorg/xserver/-/merge_requests/1523>
(cherry picked from commit 96bdc156a1)

2026-01-25 10:39:56 -08:00

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