Manage the installation of software packages from source

GNU Stow is a program for managing the installation of software
packages, keeping them separate (/usr/local/stow/emacs vs.
/usr/local/stow/perl, for example) while making them appear to be
installed in the same place (/usr/local). Software to ease the keeping
track of software built from source, making it easy to install, delete,
move etc.