tidied up list definitions, using type 'a option instead of
unit + 'a, also using real typedefs instead of faking them with extra rules
#!/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