From 50aa44c59b97c59f08dc482fa9d93bd1dc281ab0 Mon Sep 17 00:00:00 2001
From: "Devin J. Pohly" <djpohly@gmail.com>
Date: Fri, 31 Jul 2020 09:57:59 -0500
Subject: [PATCH] add tag bitset check from dwm

---
 dwl.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dwl.c b/dwl.c
index 3cacba3..f0c599b 100644
--- a/dwl.c
+++ b/dwl.c
@@ -274,6 +274,9 @@ static struct wl_listener xwayland_ready = {.notify = xwaylandready};
 /* configuration, allows nested code to access above variables */
 #include "config.h"
 
+/* compile-time check if all tags fit into an unsigned int bit array. */
+struct NumTags { char limitexceeded[LENGTH(tags) > 31 ? -1 : 1]; };
+
 /* function implementations */
 void
 activatex11(struct wl_listener *listener, void *data)