/usr/include/xsd/cxx/tree/parsing/ is in xsdcxx 4.0.0-6.
This file is owned by root:root, with mode 0o755.
..
/usr/include/xsd/cxx/tree/parsing/boolean.hxx
/usr/include/xsd/cxx/tree/parsing/byte.hxx
/usr/include/xsd/cxx/tree/parsing/date-time.txx
/usr/include/xsd/cxx/tree/parsing/decimal.hxx
/usr/include/xsd/cxx/tree/parsing/double.hxx
/usr/include/xsd/cxx/tree/parsing/element-map.txx
/usr/include/xsd/cxx/tree/parsing/float.hxx
/usr/include/xsd/cxx/tree/parsing/int.hxx
/usr/include/xsd/cxx/tree/parsing/long.hxx
/usr/include/xsd/cxx/tree/parsing/short.hxx
/usr/include/xsd/cxx/tree/parsing/unsigned-byte.hxx
/usr/include/xsd/cxx/tree/parsing/unsigned-int.hxx
/usr/include/xsd/cxx/tree/parsing/unsigned-long.hxx
/usr/include/xsd/cxx/tree/parsing/unsigned-short.hxx