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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>
This commit is contained in:
Olivier Fourdan 2024-05-07 13:42:22 +02:00
parent a58352b985
commit 96bdc156a1
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' build_dri2 = get_option('dri2') == 'true'
endif endif
have_eventfd = cc.has_header('sys/eventfd.h')
if get_option('dri3') == 'auto' 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 else
build_dri3 = get_option('dri3') == 'true' build_dri3 = get_option('dri3') == 'true'
if build_dri3 if build_dri3
if not xshmfence_dep.found() if not xshmfence_dep.found()
error('DRI3 requested, but xshmfence not found') error('DRI3 requested, but xshmfence not found')
endif endif
if not have_eventfd
error('DRI3 requested, but sys/eventfd.h not found')
endif
endif endif
endif endif