Re: AS_IF

[Zack Weinberg]

On Mon, Oct 12, 2020 at 3:01 AM Paul Eggert <eggert@cs.ucla.edu> wrote:
> On 10/6/20 5:52 PM, Zack Weinberg wrote:
> > I'm not sure we should say AS_IF/CASE
> > are equivalent to plain shell if/case inside an AC_DEFUN; they do do
> > more than just make the m4 expansion stack not be empty.
>
> Yes, that goes a bit too far. I installed the attached doc patch to Savannah
> Autoconf master to try to clarify things a bit. I developed this patch before
> seeing Bruno's, but it should address the same issues (plus a few more, like
> portability of Posix case syntax).

Looks good, thanks.

> AS_FOR is kind of a mess. I wouldn't document it the way it is. Perhaps it 
> could
> be cleaned up in some future Autoconf version.

Oh, yeah, I see what you mean now.  I didn't actually read the
definition of AS_FOR before writing that NEWS entry.

zw