/usr/lib/x86_64-linux-gnu/libpugl-0.so is in libpugl-dev 0~svn32+dfsg0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/x86_64-linux-gnu/libpugl-0.so.0.0.0
/usr/lib/x86_64-linux-gnu/libpugl-0.so.0.0.0