The libSM package contains runtime libraries for the X.Org X11 SM.
acquired package info from repodata DB: repodata/69e709f4d2852d98f12867a74015d19384fe2727ff670fd70178cdde80b1e77e-primary.sqlite.bz2
The libSM-devel package contains development files for libSM.
This package contains some library and other necessary files for the development of util-linux.