/usr/lib/x86_64-linux-gnu/ is in libtelepathy-qt5-dev 0.9.7-0ubuntu2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5Farstream/
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5/
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5/TelepathyQt5Config.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5/TelepathyQt5ConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5/TelepathyQt5Targets-relwithdebinfo.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5/TelepathyQt5Targets.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5Farstream/TelepathyQt5FarstreamConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5Farstream/TelepathyQt5FarstreamConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5Service/
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5Service/TelepathyQt5ServiceConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/TelepathyQt5Service/TelepathyQt5ServiceConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/libtelepathy-qt5-service.a
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/TelepathyQt5.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/TelepathyQt5Farstream.pc
/usr/lib/x86_64-linux-gnu/pkgconfig/TelepathyQt5Service.pc
/usr/lib/x86_64-linux-gnu/libtelepathy-qt5-farstream.so
/usr/lib/x86_64-linux-gnu/libtelepathy-qt5.so