Re: Improve AC_CACHE_VAL

[Ralf Wildenhues]

* Paolo Bonzini wrote on Mon, Mar 02, 2009 at 06:04:01PM CET:
> 
> But it makes them confusing.  I really dislike this patch.  Isuggest
> instead including macros for
> 
>   exec AS_MESSAGE_FD([])>/dev/null
> 
> and
> 
>   test "$silent" != yes && exec AS_MESSAGE_FD([])>&1

For what it's worth, I tend to agree to this, even if fd operations are
typically a bit expensive.  Needs checking though whether AS_MESSAGE_FD
and fd 1 are the same thing for all users of m4sh (I'm guessing that
this merits generalization to m4sh  ;-)

Cheers,
Ralf