From 7931d1e53ce857ba5f3df53209797e8095b4c8d9 Mon Sep 17 00:00:00 2001
From: Wolfgang Hess <whess@google.com>
Date: Tue, 14 Nov 2017 18:32:27 +0100
Subject: [PATCH] Follow googlecartographer/cartographer#574. (#593)

---
 cartographer_ros/cartographer_ros/map_builder_bridge.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/cartographer_ros/cartographer_ros/map_builder_bridge.cc b/cartographer_ros/cartographer_ros/map_builder_bridge.cc
index 80e8287..6f3432d 100644
--- a/cartographer_ros/cartographer_ros/map_builder_bridge.cc
+++ b/cartographer_ros/cartographer_ros/map_builder_bridge.cc
@@ -65,7 +65,7 @@ void PushAndResetLineMarker(visualization_msgs::Marker* marker,
 MapBuilderBridge::MapBuilderBridge(const NodeOptions& node_options,
                                    tf2_ros::Buffer* const tf_buffer)
     : node_options_(node_options),
-      map_builder_(node_options.map_builder_options),
+      map_builder_(node_options.map_builder_options, {}),
       tf_buffer_(tf_buffer) {}
 
 void MapBuilderBridge::LoadMap(const std::string& map_filename) {