From e22a985d3a724b888d68b1b58fd6e69718d514a2 Mon Sep 17 00:00:00 2001
From: Marco Feder <marco.feder@sissa.it>
Date: Wed, 12 Jul 2023 01:17:44 +0200
Subject: [PATCH] Fix CI

---
 source/grid/grid_tools.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/source/grid/grid_tools.cc b/source/grid/grid_tools.cc
index e480638fd6..1008a91af4 100644
--- a/source/grid/grid_tools.cc
+++ b/source/grid/grid_tools.cc
@@ -24,11 +24,17 @@
 #  include <deal.II/arborx/access_traits.h>
 #  include <deal.II/arborx/distributed_tree.h>
 #else
+template <int dim, typename Number>
+class BoundingBox;
+
 namespace ArborXWrappers
 {
   class DistributedTree
   {
   public:
+    template <int dim, typename Number>
+    DistributedTree(const MPI_Comm &,
+                    const std::vector<BoundingBox<dim, Number>> &);
     template <typename QueryType>
     std::pair<std::vector<std::pair<int, int>>, std::vector<int>>
     query(const QueryType &queries);
-- 
2.39.5