/usr/lib/x86_64-linux-gnu/libwinpr-thread.so.0.1 is in libwinpr-thread0.1 1.1.0~git20140921.1.440916e+dfsg1-15ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libwinpr-thread.so.0.1.0