/usr/include/vxl/vcl/emulation/ is in libvxl1-dev 1.17.0.dfsg2-4.
This file is owned by root:root, with mode 0o755.
..
/usr/include/vxl/vcl/emulation/egcs-stlconf.h
/usr/include/vxl/vcl/emulation/gcc-272-stlconf.h
/usr/include/vxl/vcl/emulation/gcc-2800-stlconf.h
/usr/include/vxl/vcl/emulation/gcc-281-stlconf.h
/usr/include/vxl/vcl/emulation/gcc-295-stlconf.h
/usr/include/vxl/vcl/emulation/sgi-CC-stlconf.h
/usr/include/vxl/vcl/emulation/stlcomp.h
/usr/include/vxl/vcl/emulation/sun-CC4.1-stlconf.h
/usr/include/vxl/vcl/emulation/sun-CC5.0-stlconf.h
/usr/include/vxl/vcl/emulation/vcl_algobase.h
/usr/include/vxl/vcl/emulation/vcl_algorithm.h
/usr/include/vxl/vcl/emulation/vcl_algorithm.txx
/usr/include/vxl/vcl/emulation/vcl_alloc.h
/usr/include/vxl/vcl/emulation/vcl_bool.h
/usr/include/vxl/vcl/emulation/vcl_bvector.h
/usr/include/vxl/vcl/emulation/vcl_ciso646.h
/usr/include/vxl/vcl/emulation/vcl_complex.h
/usr/include/vxl/vcl/emulation/vcl_complex.txx
/usr/include/vxl/vcl/emulation/vcl_defalloc.h
/usr/include/vxl/vcl/emulation/vcl_deque.h
/usr/include/vxl/vcl/emulation/vcl_deque.txx
/usr/include/vxl/vcl/emulation/vcl_functional.h
/usr/include/vxl/vcl/emulation/vcl_functional.txx
/usr/include/vxl/vcl/emulation/vcl_functionx.h
/usr/include/vxl/vcl/emulation/vcl_hash.txx
/usr/include/vxl/vcl/emulation/vcl_hash_map.h
/usr/include/vxl/vcl/emulation/vcl_hash_map.txx
/usr/include/vxl/vcl/emulation/vcl_hash_set.h
/usr/include/vxl/vcl/emulation/vcl_hashtable.h
/usr/include/vxl/vcl/emulation/vcl_heap.h
/usr/include/vxl/vcl/emulation/vcl_iterator.h
/usr/include/vxl/vcl/emulation/vcl_iterator.txx
/usr/include/vxl/vcl/emulation/vcl_limits.h
/usr/include/vxl/vcl/emulation/vcl_list.h
/usr/include/vxl/vcl/emulation/vcl_list.txx
/usr/include/vxl/vcl/emulation/vcl_map.h
/usr/include/vxl/vcl/emulation/vcl_map.txx
/usr/include/vxl/vcl/emulation/vcl_multimap.h
/usr/include/vxl/vcl/emulation/vcl_multimap.txx
/usr/include/vxl/vcl/emulation/vcl_multiset.h
/usr/include/vxl/vcl/emulation/vcl_new.h
/usr/include/vxl/vcl/emulation/vcl_pair.h
/usr/include/vxl/vcl/emulation/vcl_rbtree.txx
/usr/include/vxl/vcl/emulation/vcl_rel_ops.h
/usr/include/vxl/vcl/emulation/vcl_set.h
/usr/include/vxl/vcl/emulation/vcl_set.txx
/usr/include/vxl/vcl/emulation/vcl_stack.h
/usr/include/vxl/vcl/emulation/vcl_stlconf.h
/usr/include/vxl/vcl/emulation/vcl_stlfwd.h
/usr/include/vxl/vcl/emulation/vcl_tempbuf.h
/usr/include/vxl/vcl/emulation/vcl_tree.h
/usr/include/vxl/vcl/emulation/vcl_utility.h
/usr/include/vxl/vcl/emulation/vcl_utility.txx
/usr/include/vxl/vcl/emulation/vcl_vector.h
/usr/include/vxl/vcl/emulation/vcl_vector.txx
/usr/include/vxl/vcl/emulation/win32-vc50-stlconf.h