1Fix build with cgal 5.6.1+
2
3diff --git a/src/libslic3r/MeshBoolean.cpp b/src/libslic3r/MeshBoolean.cpp
4index 50bbc099..b05245d3 100644
5--- a/src/libslic3r/MeshBoolean.cpp
6+++ b/src/libslic3r/MeshBoolean.cpp
7@@ -200,12 +200,12 @@ indexed_triangle_set cgal_to_indexed_triangle_set(const _Mesh &cgalmesh)
8 const auto &vertices = cgalmesh.vertices();
9 int vsize = int(vertices.size());
10
11- for (auto &vi : vertices) {
12+ for (const auto &vi : vertices) {
13 auto &v = cgalmesh.point(vi); // Don't ask...
14 its.vertices.emplace_back(to_vec3f(v));
15 }
16
17- for (auto &face : faces) {
18+ for (const auto &face : faces) {
19 auto vtc = cgalmesh.vertices_around_face(cgalmesh.halfedge(face));
20
21 int i = 0;