/usr/lib/ is in libtelepathy-qt4-dev 0.9.3-3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/
/usr/lib/x86_64-linux-gnu/pkgconfig/TelepathyQt4Farstream.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/TelepathyQt4.pc
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4Farstream/
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4Farstream/TelepathyQt4FarstreamConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4Farstream/TelepathyQt4FarstreamConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4/
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4/TelepathyQt4Targets-relwithdebinfo.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4/TelepathyQt4Config.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4/TelepathyQt4Targets.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt4/TelepathyQt4ConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/libtelepathy-qt4-farstream.so
/usr/lib/x86_64-linux-gnu/libtelepathy-qt4.so