/usr/lib/x86_64-linux-gnu/ is in qtlocation5-dev 5.5.1-3ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/libQt5Location.prl
/usr/lib/x86_64-linux-gnu/qt5/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/
/usr/lib/x86_64-linux-gnu/qt5/mkspecs/modules/qt_lib_location.pri
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/Qt5Location/
/usr/lib/x86_64-linux-gnu/cmake/Qt5Location/Qt5LocationConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5Location/Qt5Location_QGeoServiceProviderFactoryOsm.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5Location/Qt5LocationConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5Location/Qt5Location_QGeoServiceProviderFactoryMapbox.cmake
/usr/lib/x86_64-linux-gnu/cmake/Qt5Location/Qt5Location_QGeoServiceProviderFactoryNokia.cmake
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/Qt5Location.pc
/usr/lib/x86_64-linux-gnu/libQt5Location.so