From a21c9378ee7c9b1c4165a2df742a639b7393a322 Mon Sep 17 00:00:00 2001
From: "Devin J. Pohly" <djpohly@gmail.com>
Date: Tue, 21 Jul 2020 18:43:26 -0400
Subject: [PATCH] fix segfault on xwayland "appid"

---
 dwl.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dwl.c b/dwl.c
index 99eafd7..da10035 100644
--- a/dwl.c
+++ b/dwl.c
@@ -287,6 +287,8 @@ applyrules(Client *c)
 		if (!(title = c->xdg_surface->toplevel->title))
 			title = broken;
 	} else {
+		if (!(appid = c->xwayland_surface->class))
+			appid = broken;
 		if (!(title = c->xwayland_surface->title))
 			title = broken;
 	}