/usr/include/boost/geometry/io/ is in libboost1.62-dev 1.62.0+dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/include/boost/geometry/io/dsv/
/usr/include/boost/geometry/io/dsv/write.hpp
/usr/include/boost/geometry/io/io.hpp
/usr/include/boost/geometry/io/svg/
/usr/include/boost/geometry/io/svg/svg_mapper.hpp
/usr/include/boost/geometry/io/svg/write.hpp
/usr/include/boost/geometry/io/svg/write_svg.hpp
/usr/include/boost/geometry/io/svg/write_svg_multi.hpp
/usr/include/boost/geometry/io/wkt/
/usr/include/boost/geometry/io/wkt/detail/
/usr/include/boost/geometry/io/wkt/detail/prefix.hpp
/usr/include/boost/geometry/io/wkt/detail/wkt_multi.hpp
/usr/include/boost/geometry/io/wkt/read.hpp
/usr/include/boost/geometry/io/wkt/stream.hpp
/usr/include/boost/geometry/io/wkt/wkt.hpp
/usr/include/boost/geometry/io/wkt/write.hpp