/usr/lib/libgwengui-qt4.so.0 is in libgwengui-qt4-0 4.15.2beta-2build1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgwengui-qt4.so.0.0.0
/usr/lib/libgwengui-qt4.so.0.0.0