/usr/lib/libgnomemm-2.6.so.1 is in libgnomemm-2.6-1c2 2.30.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/libgnomemm-2.6.so.1.0.5
/usr/lib/libgnomemm-2.6.so.1.0.5