/usr/ is in libdbusmenu-qt5-dev 0.9.3+16.04.20160218-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/include/
/usr/include/dbusmenu-qt5/
/usr/include/dbusmenu-qt5/dbusmenu_export.h
/usr/include/dbusmenu-qt5/dbusmenu_version.h
/usr/include/dbusmenu-qt5/dbusmenuexporter.h
/usr/include/dbusmenu-qt5/dbusmenuimporter.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/dbusmenu-qt5/
/usr/lib/x86_64-linux-gnu/cmake/dbusmenu-qt5/dbusmenu-qt5-config-version.cmake
/usr/lib/x86_64-linux-gnu/cmake/dbusmenu-qt5/dbusmenu-qt5-config.cmake
/usr/lib/x86_64-linux-gnu/cmake/dbusmenu-qt5/dbusmenu-qt5-targets-none.cmake
/usr/lib/x86_64-linux-gnu/cmake/dbusmenu-qt5/dbusmenu-qt5-targets.cmake
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/dbusmenu-qt5.pc
/usr/share/
/usr/share/doc/
/usr/share/doc/libdbusmenu-qt5-dev/
/usr/share/doc/libdbusmenu-qt5-dev/copyright
/usr/lib/x86_64-linux-gnu/libdbusmenu-qt5.so
/usr/share/doc/libdbusmenu-qt5-dev/changelog.Debian.gz