From a771a2f547b4601b736f181c5cbede4d253fa633 Mon Sep 17 00:00:00 2001
From: Peter Camps <peter.camps@ugent.be>
Date: Mon, 13 Jan 2025 18:00:58 +0100
Subject: [PATCH] include functional

---
 SKIRT/utils/BoxSearch.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/SKIRT/utils/BoxSearch.hpp b/SKIRT/utils/BoxSearch.hpp
index 6a28baf5..826e3562 100644
--- a/SKIRT/utils/BoxSearch.hpp
+++ b/SKIRT/utils/BoxSearch.hpp
@@ -8,6 +8,7 @@
 
 #include "Array.hpp"
 #include "Box.hpp"
+#include <functional>
 #include <unordered_set>
 
 //////////////////////////////////////////////////////////////////////