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From: Pavel Roskin
Subject: Re: AS_EXIT
Date: Sun, 29 Oct 2000 20:04:21 -0500 (EST)

Hello, Akim!

I'd like to hear you since my patch conflicts with yours.

> >     * m4sh.m4 (AS_EXIT): New macro that exits in the way that
> >     $? is set correctly within the exit trap.
> >     (AS_TMPDIR): Use it.
> >     * acgeneral.m4 (AC_MSG_ERROR): Likewise,
> Ok

I noticed a patch from Jim Meyering that adds curly braces in AC_MSG_WARN.
I don't like to add stuff that is not strictly necessary, but since the
issue is raised we may want to add braces to AS_EXIT:

[{ (exit m4_default([$1], 1)); exit; }])

But this would mean nested braces in AC_MSG_ERROR. Not nice.

Also we could have smarter AS_EXIT that would expand to ":; exit" for 0,
"false; exit" for 1 or no argument and "(exit $1); exit" in general case.
I can do it if anybody wants.

Pavel Roskin

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