/usr/include/opengm/inference/auxiliary/ is in libopengm-dev 2.3.6-2.
This file is owned by root:root, with mode 0o755.
..
/usr/include/opengm/inference/auxiliary/fusion_move/
/usr/include/opengm/inference/auxiliary/fusion_move/fusion_mover.hxx
/usr/include/opengm/inference/auxiliary/fusion_move/high_level_fusion_mover.hxx
/usr/include/opengm/inference/auxiliary/fusion_move/permutable_label_fusion_mover.hxx
/usr/include/opengm/inference/auxiliary/lp_functiontransfer.hxx
/usr/include/opengm/inference/auxiliary/lp_reparametrization.hxx
/usr/include/opengm/inference/auxiliary/lp_reparametrization_hdf5.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/
/usr/include/opengm/inference/auxiliary/lp_solver/lp_solver_cplex.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/lp_solver_gurobi.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/lp_solver_interface.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/obsolete/
/usr/include/opengm/inference/auxiliary/lp_solver/obsolete/lp_solver_cplex_old.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/obsolete/lp_solver_glpk_old.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/obsolete/lp_solver_gurobi_old.hxx
/usr/include/opengm/inference/auxiliary/lp_solver/obsolete/lp_solver_interface_old.hxx
/usr/include/opengm/inference/auxiliary/lpdef.hxx
/usr/include/opengm/inference/auxiliary/minstcutboost.hxx
/usr/include/opengm/inference/auxiliary/minstcutibfs.hxx
/usr/include/opengm/inference/auxiliary/minstcutkolmogorov.hxx
/usr/include/opengm/inference/auxiliary/planar_graph.hxx
/usr/include/opengm/inference/auxiliary/planar_maxcut.hxx
/usr/include/opengm/inference/auxiliary/planar_maxcut_graph.hxx
/usr/include/opengm/inference/auxiliary/primal_lpbound.hxx
/usr/include/opengm/inference/auxiliary/proposal_generator/
/usr/include/opengm/inference/auxiliary/proposal_generator/multi_label_proposals.hxx
/usr/include/opengm/inference/auxiliary/smoothing_to_marginals.hxx
/usr/include/opengm/inference/auxiliary/submodel/
/usr/include/opengm/inference/auxiliary/submodel/submodel_builder.hxx
/usr/include/opengm/inference/auxiliary/transportationsolver.hxx