Logtalk 2.25.1 files.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1357 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

Logtalk/scripts/make_gplgt.sh

@@ -2,7 +2,7 @@
 
 ## =================================================================
 ## Logtalk - Object oriented extension to Prolog
-## Release 2.25.0
+## Release 2.25.1
 ##
 ## Copyright (c) 1998-2005 Paulo Moura.  All Rights Reserved.
 ## =================================================================
@@ -15,23 +15,30 @@ then
 	echo "The environment variable LOGTALKHOME must be defined first!"
 	echo
 	exit 1
-else
-	cd "$LOGTALKHOME"
-	if [ -z "$1" ]; then
-		prefix=/usr/local
-	else
-		prefix="$1"
-	fi
-	mkdir -p bin
-	cd bin
-	echo ":- built_in." > logtalk_gp.pl
-	cat ../compiler/logtalk.pl >> logtalk_gp.pl
-	echo "#/bin/sh" > gplgt
-	echo "gprolog --init-goal \"['$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 should define the environment variables LOGTALKHOME and"
-	echo "LOGTALKUSER in order to use the script."
-	echo
 fi
+
+if [ -z "$1" ]; then
+	prefix=/usr/local
+else
+	prefix="$1"
+fi
+
+if ! [ -d "$1" ]; then
+	echo "Directory prefix does not exist!"
+	echo
+	exit 1
+fi
+
+cd "$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 should define the environment variables LOGTALKHOME and"
+echo "LOGTALKUSER in order to use the script."
+echo