/usr/include/CGAL/Polygon_mesh_processing/ is in libcgal-dev 4.11-2build1.
This file is owned by root:root, with mode 0o755.
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/usr/include/CGAL/Polygon_mesh_processing/Detect_features_in_polyhedra.h
/usr/include/CGAL/Polygon_mesh_processing/Detect_features_in_polyhedra_fwd.h
/usr/include/CGAL/Polygon_mesh_processing/Weights.h
/usr/include/CGAL/Polygon_mesh_processing/bbox.h
/usr/include/CGAL/Polygon_mesh_processing/border.h
/usr/include/CGAL/Polygon_mesh_processing/compute_normal.h
/usr/include/CGAL/Polygon_mesh_processing/connected_components.h
/usr/include/CGAL/Polygon_mesh_processing/corefinement.h
/usr/include/CGAL/Polygon_mesh_processing/distance.h
/usr/include/CGAL/Polygon_mesh_processing/fair.h
/usr/include/CGAL/Polygon_mesh_processing/internal/
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Face_graph_output_builder.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Intersection_type.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/Visitor.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/face_graph_utils.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersect_triangle_and_segment_3.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_callbacks.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_impl.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_nodes.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/intersection_of_coplanar_triangles_3.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Corefinement/predicates.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Hole_filling/
/usr/include/CGAL/Polygon_mesh_processing/internal/Hole_filling/Triangulate_hole_polygon_mesh.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Hole_filling/Triangulate_hole_polyline.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Hole_filling/do_not_use_DT3.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Hole_filling/experimental/
/usr/include/CGAL/Polygon_mesh_processing/internal/Hole_filling/experimental/experimental_code.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Isotropic_remeshing/
/usr/include/CGAL/Polygon_mesh_processing/internal/Isotropic_remeshing/AABB_filtered_projection_traits.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Isotropic_remeshing/remesh_impl.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Polygon_mesh_slicer/
/usr/include/CGAL/Polygon_mesh_processing/internal/Polygon_mesh_slicer/Axis_parallel_plane_traits.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Polygon_mesh_slicer/Traversal_traits.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Side_of_triangle_mesh/
/usr/include/CGAL/Polygon_mesh_processing/internal/Side_of_triangle_mesh/AABB_triangle_accessor_3_primitive.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Side_of_triangle_mesh/Point_inside_vertical_ray_cast.h
/usr/include/CGAL/Polygon_mesh_processing/internal/Side_of_triangle_mesh/Ray_3_Triangle_3_traversal_traits.h
/usr/include/CGAL/Polygon_mesh_processing/internal/clip.h
/usr/include/CGAL/Polygon_mesh_processing/internal/fair_impl.h
/usr/include/CGAL/Polygon_mesh_processing/internal/mesh_to_point_set_hausdorff_distance.h
/usr/include/CGAL/Polygon_mesh_processing/internal/named_function_params.h
/usr/include/CGAL/Polygon_mesh_processing/internal/named_params_helper.h
/usr/include/CGAL/Polygon_mesh_processing/internal/parameters_interface.h
/usr/include/CGAL/Polygon_mesh_processing/internal/refine_impl.h
/usr/include/CGAL/Polygon_mesh_processing/intersection.h
/usr/include/CGAL/Polygon_mesh_processing/measure.h
/usr/include/CGAL/Polygon_mesh_processing/orient_polygon_soup.h
/usr/include/CGAL/Polygon_mesh_processing/orientation.h
/usr/include/CGAL/Polygon_mesh_processing/polygon_soup_to_polygon_mesh.h
/usr/include/CGAL/Polygon_mesh_processing/random_perturbation.h
/usr/include/CGAL/Polygon_mesh_processing/refine.h
/usr/include/CGAL/Polygon_mesh_processing/remesh.h
/usr/include/CGAL/Polygon_mesh_processing/repair.h
/usr/include/CGAL/Polygon_mesh_processing/self_intersections.h
/usr/include/CGAL/Polygon_mesh_processing/stitch_borders.h
/usr/include/CGAL/Polygon_mesh_processing/triangulate_faces.h
/usr/include/CGAL/Polygon_mesh_processing/triangulate_hole.h