compositor(-drm): Pageflip to fullscreen surfaces
diff --git a/compositor/compositor-x11.c b/compositor/compositor-x11.c
index 48dd347..e63d6be 100644
--- a/compositor/compositor-x11.c
+++ b/compositor/compositor-x11.c
@@ -191,6 +191,13 @@
 	return 0;
 }
 
+static int
+x11_output_image_is_scanoutable(struct wlsc_output *output_base,
+				EGLImageKHR image)
+{
+	return 0;
+}
+
 static void
 x11_output_set_wm_protocols(struct x11_output *output)
 {
@@ -339,6 +346,7 @@
 
 	output->base.prepare_render = x11_output_prepare_render;
 	output->base.present = x11_output_present;
+	output->base.image_is_scanoutable = x11_output_image_is_scanoutable;
 
 	wl_list_insert(c->base.output_list.prev, &output->base.link);