/usr/include/boost/test/utils/runtime/cla/ is in libboost1.55-dev 1.55.0+dfsg-3.
This file is owned by root:root, with mode 0o755.
..
/usr/include/boost/test/utils/runtime/cla/argument_factory.hpp
/usr/include/boost/test/utils/runtime/cla/argv_traverser.hpp
/usr/include/boost/test/utils/runtime/cla/argv_traverser.ipp
/usr/include/boost/test/utils/runtime/cla/basic_parameter.hpp
/usr/include/boost/test/utils/runtime/cla/char_parameter.hpp
/usr/include/boost/test/utils/runtime/cla/char_parameter.ipp
/usr/include/boost/test/utils/runtime/cla/detail/
/usr/include/boost/test/utils/runtime/cla/detail/argument_value_usage.hpp
/usr/include/boost/test/utils/runtime/cla/dual_name_parameter.hpp
/usr/include/boost/test/utils/runtime/cla/dual_name_parameter.ipp
/usr/include/boost/test/utils/runtime/cla/fwd.hpp
/usr/include/boost/test/utils/runtime/cla/id_policy.hpp
/usr/include/boost/test/utils/runtime/cla/id_policy.ipp
/usr/include/boost/test/utils/runtime/cla/iface/
/usr/include/boost/test/utils/runtime/cla/iface/argument_factory.hpp
/usr/include/boost/test/utils/runtime/cla/iface/id_policy.hpp
/usr/include/boost/test/utils/runtime/cla/modifier.hpp
/usr/include/boost/test/utils/runtime/cla/named_parameter.hpp
/usr/include/boost/test/utils/runtime/cla/named_parameter.ipp
/usr/include/boost/test/utils/runtime/cla/parameter.hpp
/usr/include/boost/test/utils/runtime/cla/parser.hpp
/usr/include/boost/test/utils/runtime/cla/parser.ipp
/usr/include/boost/test/utils/runtime/cla/positional_parameter.hpp
/usr/include/boost/test/utils/runtime/cla/typed_parameter.hpp
/usr/include/boost/test/utils/runtime/cla/validation.hpp
/usr/include/boost/test/utils/runtime/cla/validation.ipp
/usr/include/boost/test/utils/runtime/cla/value_generator.hpp
/usr/include/boost/test/utils/runtime/cla/value_handler.hpp