configure

renamed Symtab.null to Symtab.empty;
renamed Symtan.extend_new to Symtab.extend;

#!/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