/usr/include/ITK-4.5/generic/ is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/ITK-4.5/generic/vcl_algorithm.h
/usr/include/ITK-4.5/generic/vcl_bitset.h
/usr/include/ITK-4.5/generic/vcl_blah.h
/usr/include/ITK-4.5/generic/vcl_cassert.h
/usr/include/ITK-4.5/generic/vcl_cctype.h
/usr/include/ITK-4.5/generic/vcl_cerrno.h
/usr/include/ITK-4.5/generic/vcl_cfloat.h
/usr/include/ITK-4.5/generic/vcl_ciso646.h
/usr/include/ITK-4.5/generic/vcl_climits.h
/usr/include/ITK-4.5/generic/vcl_clocale.h
/usr/include/ITK-4.5/generic/vcl_cmath.h
/usr/include/ITK-4.5/generic/vcl_complex.h
/usr/include/ITK-4.5/generic/vcl_csetjmp.h
/usr/include/ITK-4.5/generic/vcl_csignal.h
/usr/include/ITK-4.5/generic/vcl_cstdarg.h
/usr/include/ITK-4.5/generic/vcl_cstddef.h
/usr/include/ITK-4.5/generic/vcl_cstdio.h
/usr/include/ITK-4.5/generic/vcl_cstdlib.h
/usr/include/ITK-4.5/generic/vcl_cstring.h
/usr/include/ITK-4.5/generic/vcl_ctime.h
/usr/include/ITK-4.5/generic/vcl_cwchar.h
/usr/include/ITK-4.5/generic/vcl_cwctype.h
/usr/include/ITK-4.5/generic/vcl_deque.h
/usr/include/ITK-4.5/generic/vcl_exception.h
/usr/include/ITK-4.5/generic/vcl_fstream.h
/usr/include/ITK-4.5/generic/vcl_functional.h
/usr/include/ITK-4.5/generic/vcl_iomanip.h
/usr/include/ITK-4.5/generic/vcl_ios.h
/usr/include/ITK-4.5/generic/vcl_iosfwd.h
/usr/include/ITK-4.5/generic/vcl_iostream.h
/usr/include/ITK-4.5/generic/vcl_istream.h
/usr/include/ITK-4.5/generic/vcl_iterator.h
/usr/include/ITK-4.5/generic/vcl_limits.h
/usr/include/ITK-4.5/generic/vcl_list.h
/usr/include/ITK-4.5/generic/vcl_locale.h
/usr/include/ITK-4.5/generic/vcl_map.h
/usr/include/ITK-4.5/generic/vcl_memory.h
/usr/include/ITK-4.5/generic/vcl_memory_tr1.h
/usr/include/ITK-4.5/generic/vcl_numeric.h
/usr/include/ITK-4.5/generic/vcl_ostream.h
/usr/include/ITK-4.5/generic/vcl_queue.h
/usr/include/ITK-4.5/generic/vcl_set.h
/usr/include/ITK-4.5/generic/vcl_sstream.h
/usr/include/ITK-4.5/generic/vcl_stack.h
/usr/include/ITK-4.5/generic/vcl_stdexcept.h
/usr/include/ITK-4.5/generic/vcl_streambuf.h
/usr/include/ITK-4.5/generic/vcl_string.h
/usr/include/ITK-4.5/generic/vcl_typeinfo.h
/usr/include/ITK-4.5/generic/vcl_utility.h
/usr/include/ITK-4.5/generic/vcl_valarray.h
/usr/include/ITK-4.5/generic/vcl_vector.h