/usr/lib/x86_64-linux-gnu/libpocl.so is in libpocl-dev 0.10-10.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libpocl.so.1.3.0
/usr/lib/x86_64-linux-gnu/libpocl.so.1.3.0