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yap-6.3/Logtalk/scripts/make_gplgt.sh

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#!/bin/sh
## =================================================================
## Logtalk - Object oriented extension to Prolog
## Release 2.27.1
##
## Copyright (c) 1998-2006 Paulo Moura. All Rights Reserved.
## =================================================================
echo
echo "Creating a script named gplgt for running Logtalk with GNU Prolog..."
echo
if ! [ "$LOGTALKHOME" ]
then
echo "The environment variable LOGTALKHOME must be defined first!"
echo
exit 1
fi
if ! [ -d "$LOGTALKHOME" ]; then
echo "The environment variable LOGTALKHOME points to a non-existing directory!"
echo "Its current value is: $LOGTALKHOME"
echo "The variable must be set to your Logtalk installation directory!"
echo
exit 1
fi
if [ -z "$1" ]; then
prefix=/usr/local
else
prefix="$1"
fi
if ! [ -d "$prefix" ]; then
echo "Directory prefix does not exist!"
echo
exit 1
fi
cd "$LOGTALKHOME"
mkdir -p bin
cd bin
echo ":- built_in." > logtalk_gp.pl
cat ../compiler/logtalk.pl >> logtalk_gp.pl
echo "#/bin/sh" > gplgt
echo "gprolog --init-goal \"['\$LOGTALKUSER/configs/gnu.config', '\$LOGTALKHOME/bin/logtalk_gp.pl', '\$LOGTALKUSER/libpaths/libpaths.pl']\"" >> gplgt
chmod a+x gplgt
ln -sf $LOGTALKHOME/bin/gplgt $prefix/bin/gplgt
echo "Done. A link to the script was been created in $prefix/bin."
echo "Users must define the environment variables LOGTALKHOME and"
echo "LOGTALKUSER in order to use the script."
echo