# Test that a non-interactive shell does not access $MAIL.

goodfile=/var/empty/sh-test-goodfile
mailfile=/var/empty/sh-test-mailfile
T=$(mktemp sh-test.XXXXXX) || exit
MAIL=$mailfile ktrace -i -f "$T" ${SH} -c "[ -s $goodfile ]" 2>/dev/null
if ! grep -q $goodfile "$T"; then
	# ktrace problem
	rc=0
elif ! grep -q $mailfile "$T"; then
	rc=0
fi
rm "$T"
exit ${rc:-3}