>
> Can we avoid 'sed' and 'grep' entirely? How about this instead?
>
> case `(ac_space=' '; set) 2>&1` in
> *'
> ac_space= '*)
Are we sure ac_space is not first in the environment, or do we
need something like:
case $as_nl`(ac_space=' '; set) 2>&1` in
*${as_nl}ac_space=\ *)
This is still not robust to something in the environment such
as 'ac_spac="${as_nl}ac_space= "', but the probability of
configuring in an environment that polluted is too small to
be worried about (since we already have a tough time
handling newlines in the environment).
--
Eric Blake
