include functional

SKIRT · Jan 13, 2025 · a771a2f · a771a2f
1 parent e47cc9d
commit a771a2f
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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>
 
 //////////////////////////////////////////////////////////////////////