shell: Make panel just a wl_surface too
diff --git a/src/compositor.c b/src/compositor.c
index a4ef26b..b4e430b 100644
--- a/src/compositor.c
+++ b/src/compositor.c
@@ -634,7 +634,7 @@
 		weston_device_repick(&seat->seat);
 }
 
-static void
+WL_EXPORT void
 weston_surface_unmap(struct weston_surface *surface)
 {
 	struct weston_seat *seat;