lib/Tools/fixcpure

1. changed configuration variables for linear programming (Cplex_tools):
LP_SOLVER is either CPLEX or GLPK
CPLEX_PATH is the path to the cplex binary
GLPK_PATH is the path to the glpk binary
The change makes it possible to switch between glpk and cplex at runtime.
2. moved conflicting list theories out of Library.thy into ROOT.ML

#!/usr/bin/env bash
#
# $Id$
# Author: Makarius
#
# DESCRIPTION: adapt theories and ML files to new CPure/Pure arrangement


## diagnostics

PRG="$(basename "$0")"

function usage()
{
  echo
  echo "Usage: $PRG [FILES|DIRS...]"
  echo
  echo "  Recursively find .thy/.ML files, adapting them to"
  echo "  the new CPure/Pure arrangement"
  echo
  echo "  Renames old versions of FILES by appending \"~~\"."
  echo
  exit 1
}


## process command line

[ "$#" -eq 0 -o "$1" = "-?" ] && usage

SPECS="$@"; shift "$#"


## main

#set by configure
AUTO_PERL=perl

find $SPECS \( -name \*.thy -o -name \*.ML \) -print | \
  xargs "$AUTO_PERL" -w "$ISABELLE_HOME/lib/scripts/fixcpure.pl"