pub unsafe extern "C" fn xkb_x11_setup_xkb_extension(
connection: *mut xcb_connection_t,
major_xkb_version: u16,
minor_xkb_version: u16,
flags: xkb_x11_setup_xkb_extension_flags,
major_xkb_version_out: *mut u16,
minor_xkb_version_out: *mut u16,
base_event_out: *mut u8,
base_error_out: *mut u8
) -> c_int