configure

renamed `keep_derivs' to `proofs', and made an integer;

#!/bin/sh
#
# $Id$
# Author: Markus Wenzel, TU Muenchen
# License: GPL (GNU GENERAL PUBLIC LICENSE)
#
# configure - adapt Isabelle distribution to system environment

## patch scripts

cd "`dirname "$0"`"

if bash -c :
then
  bash lib/scripts/patch-scripts.bash
else
  echo "FATAL ERROR: bash not found!"
  exit 2
fi