Re: expr ... and `expr ...` return different results on QNX 4.2.5

[Lars J. Aas]

On Thu, Nov 30, 2000 at 04:28:13PM -0500, Pavel Roskin wrote:
: Hello!
: 
: > Yes.  I wouldn't bother doing that.  Just tell them to get a working
: > shell.  You have to draw the line somewhere.
: 
: That's correct. We cannot support command.com anyway :-)

...darn - I was just about to start a `comfigure' branch... ;)

: How about this:
: 
: ac_output=`command || echo "===ERROR==="`
: case $ac_output in
:   *===ERROR===)
:     AC_MSG_ERROR([command failed]) ;;
:   *) ;;
: esac

How about something like this:

ac_output=`command`
command >/dev/null 2>/dev/null

The second re-run ought to be conditional on this problem to optimize the
configure script, so if someone knows how to write a condition test that won't
affect $?, raise your voice (keyboard)...

  Lars J