/usr/lib/libgauche-0.9.so.0 is in libgauche-0.9-0 0.9.5-1build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgauche-0.9.so.0.5
/usr/lib/libgauche-0.9.so.0.5