#!/bin/sh -f
########################################################################
#
# File: configure
#
# Copyright 2008-2023 Stephan Schulz, schulz@eprover.org
#
# Configuration script for the equational theorem prover E.
#
# Usage:
#
# Change directory to the top level directory of the E distribution
# (where this file is located). Then run
#
# ./configure
#
# This will prepare E for compilation in place, i.e. it will compile
# the system in place and configure programs and scripts to find the
# execuable in the directory E/PROVER. Installation in this way will
# not affect any files outside the E distribution directory.
#
# If you want to install E in a special place in the file system, run
#
# ./configure --bindir=/path/to/executables
#
# After running the configure script, you will usually type
#
# make
#
# to compile E and build all the executables. To actually install E
# somewhere outside its build directory, type
#
# make install
#
# You will need the necessary access rights to move the executables
# and possibly to create the requested directory.
#
# Have Fun!
#
#
# Copyright 2008 Stephan Schulz, schulz@eprover.org
#
# This code is part of the support structure for the equational
# theorem prover E. Visit
#
#  http://www.eprover.org
#
# for more information.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program ; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA  02111-1307 USA
#
# The original copyright holder can be contacted as
#
# Stephan Schulz (I4)
# Technische Universitaet Muenchen
# Institut fuer Informatik
# Boltzmannstrasse 3
# Garching bei Muenchen
# Germany
#
# or via email (address above).
#

EXECPATH=`pwd`/PROVER
MANPATH=`pwd`/DOC/man

enable_ho='             # -DENABLE_LFHO \\'
build_eprover="EPROVER_BIN = eprover"

for argument in  "$@"; do
    if [ "$argument" = "-h" -o "$argument" = "--help" ] ; then
        echo "Usage: ./configure [options]"
        echo ""
        echo "Supported options:"
        echo "--help"
        echo "  Print this help."
        echo "--enable-ho"
        echo "  Build E with support for higher-order logic."
        echo "--bindir=<path>"
        echo "  Configure E for running from <path>".
        echo "--exec-prefix=<path>"
        echo "  Equivalent to --bindir=<path>/bin".
        echo "--man-prefix=<path>"
        echo "  Specify directory for the man pages."
        echo "--prefix=<path>"
        echo "  Equivalent to --bindir=<path>/bin --mandir=<path>/man".
        exit 0
    else
        opt=`echo "$argument"|cut -d= -f1`
        arg=`echo "$argument"|cut -d= -f2-`
        if [ "$opt" = "--bindir" ] ; then
           EXECPATH=$arg
        elif [ "$argument" = "--enable-ho" ] ; then
            enable_ho='             -DENABLE_LFHO \\'
            build_eprover="EPROVER_BIN = eprover-ho"
        elif [ "$argument" = "--enable-lfho" ] ; then
            enable_ho='             -DENABLE_LFHO \\'
            build_eprover="EPROVER_BIN = eprover-ho"
            echo "Obsolete option tolerated. Use --enable-ho in the future."
        elif [ "$opt" = "--exec-prefix" ] ; then
           EXECPATH=$arg/bin
        elif [ "$opt" = "--man-prefix" ] ; then
           MANPATH=$arg
        elif [ "$opt" = "--prefix" ] ; then
           EXECPATH=$arg/bin
           MANPATH=$arg/man
        else
           echo "Unknown option " $argument
           exit 1
        fi
    fi
done

echo "Configuring with executable path "$EXECPATH

echo $MANPATH
echo $enable_ho
sed -e "/^EXECPATH =.*/s|.*|EXECPATH = $EXECPATH|" \
    -e "/^MANPATH =.*/s|.*|MANPATH = $MANPATH|" \
    -e "/^.*DENABLE_LFHO/s|.*|$enable_ho|"  \
    -e "/^EPROVER_BIN/s|.*|$build_eprover|" \
    Makefile.vars > tmpfile
mv tmpfile Makefile.vars

make config
