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xwayland: Do not enable DRI3 without eventfd

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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)
This commit is contained in:
Olivier Fourdan
2024-05-07 13:42:22 +02:00
committed by Alan Coopersmith
parent d2f7251668
commit 5c4bc3e462
1 changed files with 5 additions and 1 deletions
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6
meson.build
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@@ -505,14 +505,18 @@ else
build_dri2 = get_option('dri2') == 'true'
endif
have_eventfd = cc.has_header('sys/eventfd.h')
if get_option('dri3') == 'auto'
build_dri3 = dri3proto_dep.found() and xshmfence_dep.found() and libdrm_dep.found()
build_dri3 = dri3proto_dep.found() and xshmfence_dep.found() and libdrm_dep.found() and have_eventfd
else
build_dri3 = get_option('dri3') == 'true'
if build_dri3
if not xshmfence_dep.found()
error('DRI3 requested, but xshmfence not found')
endif
if not have_eventfd
error('DRI3 requested, but sys/eventfd.h not found')
endif
endif
endif