/usr/lib/libglademm-2.4.so is in libglademm-2.4-dev 2.6.7-2ubuntu1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libglademm-2.4.so.1.0.5
/usr/lib/libglademm-2.4.so.1.0.5