+# This file is part of GNU tar testsuite.
+# Copyright (C) 2004 Free Software Foundation, Inc.
+#
+# 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, 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.
+
+case $# in
+ 0) TAR_ARCHIVE_FORMATS="${TAR_ARCHIVE_FORMATS:-v7 oldgnu ustar posix gnu}"
+ for format in $TAR_ARCHIVE_FORMATS
+ do
+ $0 $format
+ R=$?
+ test $R -eq 0 || exit $R
+ done
+ exit 0;;
+ 1) if test "x$1" = xauto; then
+ TAR_OPTIONS=
+ else
+ TAR_OPTIONS="--format=$1"
+ fi;;
+ *) echo "Too many arguments" >&2
+ exit 2;;
+esac
+