/usr/lib/x86_64-linux-gnu/liblcm.so is in liblcm-dev 1.3.1+repack1-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/liblcm.so.1.3.4
/usr/lib/x86_64-linux-gnu/liblcm.so.1.3.4