/usr/ is in libxcb-util0-dev 0.3.8-2.
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/usr/share/
/usr/share/doc/
/usr/share/doc/libxcb-util0-dev/
/usr/share/doc/libxcb-util0-dev/copyright
/usr/include/
/usr/include/xcb/
/usr/include/xcb/xcb_atom.h
/usr/include/xcb/xcb_aux.h
/usr/include/xcb/xcb_bitops.h
/usr/include/xcb/xcb_event.h
/usr/include/xcb/xcb_util.h
/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/libxcb-util.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/xcb-atom.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/xcb-aux.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/xcb-event.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/xcb-util.pc
/usr/share/doc/libxcb-util0-dev/README
/usr/share/doc/libxcb-util0-dev/NEWS.gz
/usr/share/doc/libxcb-util0-dev/changelog.Debian.gz
/usr/lib/x86_64-linux-gnu/libxcb-util.so