/usr/lib/x86_64-linux-gnu/ is in libqt4-dev 4:4.8.1-0ubuntu4.9.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/libQtTest.prl
/usr/lib/x86_64-linux-gnu/libQtGui.prl
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