configure

#!/bin/bash
#
# Prepare running ClioPatria by localizing the install scripts. The real
# work is done by the  Prolog   script  setup.pl to maintain portability
# with Windows. Windows users should   double-click win-config.exe. This
# executable performs a  similar  task:   locate  SWI-Prolog  using  the
# registry and open `setup.pl` with Prolog.
#
# Running (2nd variation to select a specific SWI-Prolog version)
#
#	$ ./configure
#	$ SWIPL=swi-prolog ./configure
#
# Author: Jan Wielemaker
# Copyright: Public Domain

findexe()
{ oldifs="$IFS"
  IFS=:
  for d in $PATH; do
    if [ -x $d/$1 ]; then
       IFS="$oldifs"
       return 0
    fi
  done
  IFS="$oldifs"
  return 1
}

if [ -z "$SWIPL" ]; then
  for f in swi-prolog swipl; do
    if [ -z "$SWIPL" ] && findexe $f; then
       SWIPL=$f
    fi
  done
fi

if [ -z "$SWIPL" ]; then
  echo "ERROR: Cannot find SWI-Prolog."
  exit 1
fi

setup="$(dirname $0)/setup.pl"

$SWIPL -q -f "$setup" -- $*