[DEBUG]The [DEBUG] package contains subroutines and functions that are
useful to program developers to debug the LUX program itself; i.e., to
discover why some aspect of LUX is not reacting as advertised. These
routines are generally of no interest to the user of LUX. This package
is included if the --enable-debug option is given to
./configure. Besides including some routines and functions, this
selection also replaces certain internal routines that deal with
requests for and release of memory areas with versions that allow
program developers to check for mistakes in these matters. These
replacement versions are much slower than their non-debugging
versions.