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Re: AC_PROG_EGREP behaviour

From: Paul Eggert
Subject: Re: AC_PROG_EGREP behaviour
Date: Mon, 06 Dec 2004 10:16:39 -0800
User-agent: Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux)

Stepan Kasal <address@hidden> writes:

> The CVS version calls _AC_PROG_GREP, which means that on system without
> any working egrep, configuration halts with an error.  Is that OK?

That makes more sense to me, yes.

> OTOH, if AC_PROG_AWK finds no awk, the variable AWK is not set.
> Shouldn't we halt with an error too?
> Or shouldn't we set AWK=awk anyway, similarily to AC_PROG_YACC?

The situations are not quite the same, since grep-like programs are
sometimes executed for their status.  However, I'd feel more comfortable
if AC_PROG_AWK etc. all halted if their program wasn't available,
at least by default.

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