--- ./bin/isatool.orig	Sun Sep  2 15:23:58 2007
+++ ./bin/isatool	Sun Sep  2 16:05:57 2007
@@ -1,4 +1,4 @@
-#!/usr/bin/env bash
+#!/bin/sh
 #
 # $Id: isatool,v 1.22 2005/05/17 07:58:47 wenzelm Exp $
 # Author: Markus Wenzel, TU Muenchen
@@ -16,12 +16,12 @@
 PRG="$(basename "$0")"
 
 ISABELLE_HOME="$(cd "$(dirname "$0")"; cd "$(pwd -P)"; cd ..; pwd)"
-source "$ISABELLE_HOME/lib/scripts/getsettings" || exit 2
+. "$ISABELLE_HOME/lib/scripts/getsettings" || exit 2
 
 
 ## diagnostics
 
-function usage()
+usage()
 {
   echo
   echo "Usage: $PRG TOOL [ARGS ...]"
@@ -49,7 +49,7 @@
   exit 1
 }
 
-function fail()
+fail()
 {
   echo "$1" >&2
   exit 2