From 7e6ec58b91e0b1190571091334dd3b23359fad56 Mon Sep 17 00:00:00 2001
From: Tobias Bengfort <tobias.bengfort@posteo.de>
Date: Sat, 4 Sep 2021 11:55:53 +0200
Subject: [PATCH] fix crash when borders align perfectly with screen borders

---
 dwl.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dwl.c b/dwl.c
index 2c1634b..a1c4e7f 100644
--- a/dwl.c
+++ b/dwl.c
@@ -1697,8 +1697,9 @@ renderclients(Monitor *m, struct timespec *now)
 			color = (c == sel) ? focuscolor : bordercolor;
 			for (i = 0; i < 4; i++) {
 				scalebox(&borders[i], m->wlr_output->scale);
-				wlr_render_rect(drw, &borders[i], color,
-						m->wlr_output->transform_matrix);
+				if (borders[i].width > 0 && borders[i].height > 0)
+					wlr_render_rect(drw, &borders[i], color,
+							m->wlr_output->transform_matrix);
 			}
 		}