Modified def of Least, which, as Markus correctly complained, looked like
Minimal. Derived the old def for nat in NatDef as Least_nat_def.
#!/bin/sh
#
# $Id$
#
# configure - adapt Isabelle distribution to system environment
## patch scripts
if bash -c ""
then
bash lib/scripts/patch-scripts.bash
else
echo "FATAL ERROR: bash not found!"
exit 2
fi