acquired package info from repodata DB: repodata/f1f85c23079e7764ad00378a9fc5d660b89a03657290e75426caf7be5b7da462-primary.sqlite.bz2
The libSM package contains runtime libraries for the X.Org X11 SM.
The libSM-devel package contains development files for libSM.
This package contains some library and other necessary files for the development of util-linux.