/usr/include/mrpt/srba/ is in libmrpt-dev 1:1.2.2-1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/mrpt/srba/include/
/usr/include/mrpt/srba/include/mrpt/
/usr/include/mrpt/srba/include/mrpt/srba/
/usr/include/mrpt/srba/include/mrpt/srba.h
/usr/include/mrpt/srba/include/mrpt/srba/RbaEngine.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/
/usr/include/mrpt/srba/include/mrpt/srba/impl/add-observations.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/alloc_keyframe.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/alloc_kf2kf_edge.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/bfs_visitor.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/compute_minus_gradient.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/create_kf2kf_edge.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/define_new_keyframe.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/determine_kf2kf_edges_to_create.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/edge_creation_policy.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/eval_overall_error.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/export_dot.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/export_opengl.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/export_opengl_landmark_renderers.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/get_global_graphslam_problem.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/jacobians.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/lev-marq_solvers.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/optimize_edges.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/optimize_local_area.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/rba_problem_common.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/reprojection_residuals.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/schur.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/spantree_create_complete.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/spantree_misc.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/spantree_update_numeric.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/spantree_update_symbolic.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/sparse_hessian_build_symbolic.h
/usr/include/mrpt/srba/include/mrpt/srba/impl/sparse_hessian_update_numeric.h
/usr/include/mrpt/srba/include/mrpt/srba/landmark_jacob_families.h
/usr/include/mrpt/srba/include/mrpt/srba/landmark_render_models.h
/usr/include/mrpt/srba/include/mrpt/srba/models/
/usr/include/mrpt/srba/include/mrpt/srba/models/kf2kf_poses.h
/usr/include/mrpt/srba/include/mrpt/srba/models/landmarks.h
/usr/include/mrpt/srba/include/mrpt/srba/models/observations.h
/usr/include/mrpt/srba/include/mrpt/srba/models/sensors.h
/usr/include/mrpt/srba/include/mrpt/srba/srba_options.h
/usr/include/mrpt/srba/include/mrpt/srba/srba_options_noise.h
/usr/include/mrpt/srba/include/mrpt/srba/srba_options_sensor_pose.h
/usr/include/mrpt/srba/include/mrpt/srba/srba_options_solver.h
/usr/include/mrpt/srba/include/mrpt/srba/srba_types.h