Follow upstream switch to xz tarball:
6d84602871
Removed XCB_PROTO_POST_INSTALL_STAGING_HOOKS, not needed anymore due
to upstream fix:
bd7a481a3b
Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>