From eb4fa183088d0361e2492780e303e2965c5ecae1 Mon Sep 17 00:00:00 2001
From: Simon Ser <contact@emersion.fr>
Date: Thu, 2 Jul 2020 13:50:24 +0200
Subject: [PATCH] Unset DISPLAY when wlr_xwayland fails

Avoids having applications connect to a leftover DISPLAY when Xwayland
fails to initialize.
---
 sway/server.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sway/server.c b/sway/server.c
index c036396f..ff848450 100644
--- a/sway/server.c
+++ b/sway/server.c
@@ -202,6 +202,7 @@ bool server_start(struct sway_server *server) {
 					config->xwayland == XWAYLAND_MODE_LAZY);
 		if (!server->xwayland.wlr_xwayland) {
 			sway_log(SWAY_ERROR, "Failed to start Xwayland");
+			unsetenv("DISPLAY");
 		} else {
 			wl_signal_add(&server->xwayland.wlr_xwayland->events.new_surface,
 				&server->xwayland_surface);