Not only is keeping the directory for installing all the modules from in one place, important,
but, so is how each package was configured. One may not remember how some
configuration parameters were passed to the module in question in the future. Usually, in the
module directory where the configure script was run from, there is a file called
config.status which specifies which options were passed to the
configure script. This file hould be kept in some other directory for safe
keeping. Sometimes, however, this file may not be present after a build. Hence, it
is always best to save the configuration parameters into a text file, named, for
example configure-parameters-YYYYMMDD.txt.
