From e7bf5b661b6c7b9af42fdb1f935334a23efdefcd Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?S=C3=A9bastien=20Loriot?= <sebastien.loriot@cgal.org>
Date: Fri, 4 Feb 2022 10:22:26 +0100
Subject: [PATCH] ya missing include directive

---
 .../include/CGAL/IO/facets_in_complex_2_to_triangle_mesh.h       | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Surface_mesher/include/CGAL/IO/facets_in_complex_2_to_triangle_mesh.h b/Surface_mesher/include/CGAL/IO/facets_in_complex_2_to_triangle_mesh.h
index db78a6bb947..80a3afaefe5 100644
--- a/Surface_mesher/include/CGAL/IO/facets_in_complex_2_to_triangle_mesh.h
+++ b/Surface_mesher/include/CGAL/IO/facets_in_complex_2_to_triangle_mesh.h
@@ -19,6 +19,7 @@
 
 #include <CGAL/boost/graph/Euler_operations.h>
 #include <unordered_map>
+#include <set>
 #include <stack>
 
 namespace CGAL{