#   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 3 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, see <http://www.gnu.org/licenses/>.
#
set +o posix
shopt -u xpg_echo

# check $BASHOPTS inheritance
# the first should be an error
${THIS_SH} -O checkhash -O badopt -c 'echo $BASHOPTS' bash 2>&1 | sed 's|^.*/bash|bash|'
# this should reflect the default set of options
${THIS_SH} -c 'echo $BASHOPTS'
# now let's turn one of them on (checkhash is not enabled by default)
${THIS_SH} -O checkhash -c 'echo $BASHOPTS' bash
# let's turn one of them off
${THIS_SH} +O checkwinsize -c 'echo $BASHOPTS' bash

# turn on a non-default option
shopt -s checkhash
export BASHOPTS
# and make sure the child shell sees it enabled
if ${THIS_SH} -c 'echo $BASHOPTS' | grep checkhash >/dev/null 2>&1; then
	:
else
	echo 'BASHOPTS: checkhash not inherited correctly'
fi
shopt -u checkhash
export -n BASHOPTS

# but assigning to BASHOPTS is an error
BASHOPTS=$BASHOPTS