/usr/include/madness/world/ is in libmadness-dev 0.10-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/madness/world/MADworld.h
/usr/include/madness/world/archive.h
/usr/include/madness/world/array_addons.h
/usr/include/madness/world/atomicint.h
/usr/include/madness/world/bgq_atomics.h
/usr/include/madness/world/binary_fstream_archive.h
/usr/include/madness/world/binsorter.h
/usr/include/madness/world/buffer_archive.h
/usr/include/madness/world/deferred_cleanup.h
/usr/include/madness/world/dist_cache.h
/usr/include/madness/world/distributed_id.h
/usr/include/madness/world/dqueue.h
/usr/include/madness/world/function_traits.h
/usr/include/madness/world/future.h
/usr/include/madness/world/group.h
/usr/include/madness/world/info.h
/usr/include/madness/world/madness_exception.h
/usr/include/madness/world/mem_func_wrapper.h
/usr/include/madness/world/mpi_archive.h
/usr/include/madness/world/nodefaults.h
/usr/include/madness/world/parallel_archive.h
/usr/include/madness/world/posixmem.h
/usr/include/madness/world/print.h
/usr/include/madness/world/print_seq.h
/usr/include/madness/world/safempi.h
/usr/include/madness/world/stack.h
/usr/include/madness/world/stubmpi.h
/usr/include/madness/world/taskfn.h
/usr/include/madness/world/text_fstream_archive.h
/usr/include/madness/world/thread.h
/usr/include/madness/world/timers.h
/usr/include/madness/world/type_traits.h
/usr/include/madness/world/uniqueid.h
/usr/include/madness/world/vector.h
/usr/include/madness/world/vector_archive.h
/usr/include/madness/world/world.h
/usr/include/madness/world/world_object.h
/usr/include/madness/world/world_task_queue.h
/usr/include/madness/world/worldam.h
/usr/include/madness/world/worlddc.h
/usr/include/madness/world/worlddep.h
/usr/include/madness/world/worldgop.h
/usr/include/madness/world/worldhash.h
/usr/include/madness/world/worldhashmap.h
/usr/include/madness/world/worldmem.h
/usr/include/madness/world/worldmpi.h
/usr/include/madness/world/worldmutex.h
/usr/include/madness/world/worldpapi.h
/usr/include/madness/world/worldprofile.h
/usr/include/madness/world/worldptr.h
/usr/include/madness/world/worldrange.h
/usr/include/madness/world/worldref.h
/usr/include/madness/world/worldrmi.h
/usr/include/madness/world/worldtypes.h