/usr/lib/x86_64-linux-gnu/libcmis-0.5.so is in libcmis-dev 0.5.1+git20160603-3build2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libcmis-0.5.so.5.0.0
/usr/lib/x86_64-linux-gnu/libcmis-0.5.so.5.0.0