libweston: Advertise minor version 2 of zwp_linux_explicit_synchronization_v1

Although we already supported minor version 2 of the explicit sync
protocol, we couldn't advertise it previously, since it was not in any
released version of wayland-protocols. With the release of
wayland-protocols 1.18, which includes minor version 2 of this protocol,
and the recent update in weston to require 1.18, we can now safely
advertise minor version 2.

Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>

libweston/linux-explicit-synchronization.c

@@ -245,11 +245,9 @@ bind_linux_explicit_synchronization(struct wl_client *client,
 WL_EXPORT int
 linux_explicit_synchronization_setup(struct weston_compositor *compositor)
 {
-	/* TODO: Update to minor version 2 when the next version of
-	 * wayland-protocols that contains it is released. */
 	if (!wl_global_create(compositor->wl_display,
 			      &zwp_linux_explicit_synchronization_v1_interface,
-			      1, compositor,
+			      2, compositor,
 			      bind_linux_explicit_synchronization))
 		return -1;
 

tests/linux-explicit-synchronization-test.c

@@ -56,11 +56,11 @@ get_linux_explicit_synchronization(struct client *client)
 	}
 
 	assert(global_sync);
-	assert(global_sync->version == 1);
+	assert(global_sync->version == 2);
 
 	sync = wl_registry_bind(
 			client->wl_registry, global_sync->name,
-			&zwp_linux_explicit_synchronization_v1_interface, 1);
+			&zwp_linux_explicit_synchronization_v1_interface, 2);
 	assert(sync);
 
 	return sync;