/usr/ is in libgxps-dev 0.2.2-2ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/include/
/usr/include/libgxps/
/usr/include/libgxps/gxps-links.h
/usr/include/libgxps/gxps-error.h
/usr/include/libgxps/gxps-page.h
/usr/include/libgxps/gxps.h
/usr/include/libgxps/gxps-file.h
/usr/include/libgxps/gxps-document.h
/usr/include/libgxps/gxps-version.h
/usr/include/libgxps/gxps-document-structure.h
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libgxps.pc
/usr/lib/x86_64-linux-gnu/libgxps.a
/usr/share/
/usr/share/gir-1.0/
/usr/share/gir-1.0/GXPS-0.1.gir
/usr/share/doc/
/usr/share/doc/libgxps-dev/
/usr/share/doc/libgxps-dev/copyright
/usr/lib/x86_64-linux-gnu/libgxps.so
/usr/share/doc/libgxps-dev/README
/usr/share/doc/libgxps-dev/TODO
/usr/share/doc/libgxps-dev/changelog.Debian.gz
/usr/share/doc/libgxps-dev/AUTHORS
/usr/share/doc/libgxps-dev/NEWS.gz