From e253bbfe1d3c2a75fe46e996baa9c8e5195b7305 Mon Sep 17 00:00:00 2001
From: Eric Fischer <enf@pobox.com>
Date: Wed, 25 May 2016 11:08:04 -0700
Subject: [PATCH] Round upward to catch narrow-but-tall or wide-but-short
 features

---
 geojson.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/geojson.cpp b/geojson.cpp
index a40217d..1da389d 100644
--- a/geojson.cpp
+++ b/geojson.cpp
@@ -304,9 +304,9 @@ int serialize_geometry(json_object *geometry, json_object *properties, const cha
 
 		if (prevent[P_CLIPPING]) {
 			static volatile long long warned = 0;
-			long long extent = ((bbox[2] - bbox[0]) / (1LL << (32 - maxzoom))) * ((bbox[3] - bbox[1]) / (1LL << (32 - maxzoom)));
+			long long extent = ((bbox[2] - bbox[0]) / ((1LL << (32 - maxzoom)) + 1)) * ((bbox[3] - bbox[1]) / ((1LL << (32 - maxzoom)) + 1));
 			if (extent > warned) {
-				fprintf(stderr, "Warning: %s:%d: Large unclipped (-pc) feature will be duplicated across %lld tiles\n", fname, line, extent);
+				fprintf(stderr, "Warning: %s:%d: Large unclipped (-pc) feature may be duplicated across %lld tiles\n", fname, line, extent);
 				warned = extent;
 
 				if (extent > 10000) {