Hi, Yesterday, 13 hours, 18 minutes, 41 seconds ago, Paul Eggert wrote: > Did you try the script on one of those shells? Here it is again. If > it doesn't print "hello", what is the output of "sh -x script? > > #!/bin/sh > ENV=sdf > readonly ENV > as_unset=unset > for as_var in ENV MAIL MAILPATH > do ($as_unset $as_var) >/dev/null 2>&1 && $as_unset $as_var > done > echo "hello" Oh, right. I had overlooked it and had not seen the brackets around the first unset. So, yes, it does work as expected, ie. it does not try unset ENV and "hello" gets printed. And it's much more simple and reliable than the patch I proposed. > The message is being hidden, but the exit status is being followed. > Or are you saying that the exit status of "(unset ENV)" is zero? The exit status of "(unset ENV)" actually is non-zero as you expected. Sorry for misunderstanding you. ;-) Thanks, Ludovic. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
