From 1225d350d41368ddafff8f7ac5ebc5d2992b455a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin=20T=C5=AFma?= <tumic@cbox.cz>
Date: Mon, 2 Nov 2020 00:18:27 +0100
Subject: [PATCH] Allow broken subdiv bounds produced by mkgmap

---
 src/map/IMG/trefile.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/map/IMG/trefile.cpp b/src/map/IMG/trefile.cpp
index abdffb43..2efdd532 100644
--- a/src/map/IMG/trefile.cpp
+++ b/src/map/IMG/trefile.cpp
@@ -206,7 +206,11 @@ bool TREFile::load(int idx)
 			qWarning("%s: invalid subdiv bounds (level %d; pos %f,%f; size %fx%f)",
 			  qPrintable(fileName()), level.level, toWGS24(lon), toWGS24(lat),
 			  toWGS24(width), toWGS24(height));
-			goto error;
+			/* mkgmap produces invalid (zero width or/and zero height) subdiv
+			   bounds in some cases. Allow such bounds as they should not break
+			   things. */
+			if (!(!width || !height))
+				goto error;
 		}
 
 		min[0] = bounds.left();