/usr/lib/x86_64-linux-gnu/ is in libkml-dev 1.3.0-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/x86_64-linux-gnu/cmake/
/usr/lib/x86_64-linux-gnu/cmake/libkml/
/usr/lib/x86_64-linux-gnu/cmake/libkml/LibKMLConfig.cmake
/usr/lib/x86_64-linux-gnu/cmake/libkml/LibKMLConfigVersion.cmake
/usr/lib/x86_64-linux-gnu/cmake/libkml/LibKMLTargets-none.cmake
/usr/lib/x86_64-linux-gnu/cmake/libkml/LibKMLTargets.cmake
/usr/lib/x86_64-linux-gnu/pkgconfig/
/usr/lib/x86_64-linux-gnu/pkgconfig/libkml.pc
/usr/lib/x86_64-linux-gnu/libkmlbase.so
/usr/lib/x86_64-linux-gnu/libkmlconvenience.so
/usr/lib/x86_64-linux-gnu/libkmldom.so
/usr/lib/x86_64-linux-gnu/libkmlengine.so
/usr/lib/x86_64-linux-gnu/libkmlregionator.so
/usr/lib/x86_64-linux-gnu/libkmlxsd.so