/usr/ is in libqglviewer-qt4-dev 2.3.4-4ubuntu2.
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/usr/lib/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/qt4/
/usr/lib/x86_64-linux-gnu/qt4/plugins/
/usr/lib/x86_64-linux-gnu/qt4/plugins/designer/
/usr/lib/x86_64-linux-gnu/qt4/plugins/designer/libqglviewerplugin.so
/usr/lib/x86_64-linux-gnu/libqglviewer-qt4.a
/usr/lib/x86_64-linux-gnu/libqglviewer-qt4.prl
/usr/share/
/usr/share/doc/
/usr/share/doc/libqglviewer-qt4-dev/
/usr/share/doc/libqglviewer-qt4-dev/copyright
/usr/lib/x86_64-linux-gnu/libqglviewer-qt4.so
/usr/share/doc/libqglviewer-qt4-dev/NEWS.Debian.gz
/usr/share/doc/libqglviewer-qt4-dev/README.Multiflavour
/usr/share/doc/libqglviewer-qt4-dev/GPL_EXCEPTION
/usr/share/doc/libqglviewer-qt4-dev/README
/usr/share/doc/libqglviewer-qt4-dev/README.Debian
/usr/share/doc/libqglviewer-qt4-dev/changelog.Debian.gz