Common-Description:
 GNU libtool is a generic library support script.  Libtool hides the complexity
 of using shared libraries behind a consistent, portable interface.
Libltdl-Description:
 libltdl is a small library that aims at hiding the various difficulties of
 dlopening libraries from programmers.  It consists of a few headers and small C
 source files that can be distributed with applications that need dlopening
 functionality.