/usr/ is in libxkbcommon-dev 0.4.1-0ubuntu1.1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libxkbcommon.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/xkbcommon.pc
/usr/include/
/usr/include/xkbcommon/
/usr/include/xkbcommon/xkbcommon.h
/usr/include/xkbcommon/xkbcommon-keysyms.h
/usr/include/xkbcommon/xkbcommon-names.h
/usr/include/xkbcommon/xkbcommon-compat.h
/usr/share/
/usr/share/doc/
/usr/share/doc/libxkbcommon-dev/
/usr/share/doc/libxkbcommon-dev/copyright
/usr/lib/x86_64-linux-gnu/libxkbcommon.so
/usr/share/doc/libxkbcommon-dev/changelog.Debian.gz