for ac_arg
do
case "$ac_arg" in
- *" "*|*" "*|*\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?*)
+ *" "*|*" "*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']*)
ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
# if the argument is of the form -foo=baz, quote the baz part only
ac_arg=`echo "'$ac_arg'" | sed "s/^'\([-a-zA-Z0-9]*=\)/\\1'/"` ;;