Also fix compositor-wayland event handler
diff --git a/compositor/compositor-wayland.c b/compositor/compositor-wayland.c
index d4ae9d5..4093f2a 100644
--- a/compositor/compositor-wayland.c
+++ b/compositor/compositor-wayland.c
@@ -446,7 +446,7 @@
 	return 0;
 }
 
-static void
+static int
 wayland_compositor_handle_event(int fd, uint32_t mask, void *data)
 {
 	struct wayland_compositor *c = data;
@@ -455,6 +455,8 @@
 		wl_display_iterate(c->parent.display, WL_DISPLAY_READABLE);
 	if (mask & WL_EVENT_WRITEABLE)
 		wl_display_iterate(c->parent.display, WL_DISPLAY_WRITABLE);
+
+	return 1;
 }
 
 static void