/usr/lib/x86_64-linux-gnu/libchamplain-0.12.so is in libchamplain-0.12-dev 0.12.13-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libchamplain-0.12.so.0.8.0
/usr/lib/x86_64-linux-gnu/libchamplain-0.12.so.0.8.0