/usr/lib/x86_64-linux-gnu/libecml.so is in libodb-api-dev 0.17.6-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libecml.so.0d
/usr/lib/x86_64-linux-gnu/libecml.so.0d