autotools wants to have the BUILT_SOURCES ready as soon as it enters the
directory, even if they are not used. This meant the build failed if
wayland-protocols was not available on the system, even if it was not
enabled.
As BUILT_SOURCES cannot be used in a conditional (cf. 166852ee95), do
the same thing as EGL and manually encode the dependencies in the
Makefile.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Fixes: bfa22266cd ("vulkan/wsi/wayland: Add support for zwp_dmabuf")
Cc: Emil Velikov <emil.velikov@collabora.co.uk>
Reported-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105211
d8f19d9aa0