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From: Kevin Ryde <user42@zip.com.au>
Cc: guile-devel@gnu.org
Subject: Re: configure.in: Look for flex
Date: Fri, 17 Jun 2005 09:53:35 +1000	[thread overview]
Message-ID: <87u0jxoo3k.fsf@zip.com.au> (raw)
In-Reply-To: <871x7220ry.fsf@laas.fr> (Ludovic Courtès's message of "Thu, 16 Jun 2005 09:56:01 +0200")

ludovic.courtes@laas.fr (Ludovic Courtès) writes:
>
> Since flex is needed when building from CVS and not needed when building
> from a distribution, what about something like the following:

I think AM_PROG_LEX probably does everything you need, with no
explicit warning code needed.  It looks like it sets up the "missing"
script to give a warning in those cases where lex is wanted.

> Then this means that the error message would only be triggered for
> people who passed the `--enable-maintainer-mode' option to `configure'
> (which /should/ be the case for people building from CVS, but I'm not
> sure this is actually the case since I didn't even use it myself ;-)).

If the generated file is checked into the cvs and the dates are right
then you won't need flex for a maintainer build, unless you actually
change the source.

(Maintainer-mode is mostly about regenerating configure, Makefile.in,
etc when the inputs change.)

> BTW, why is the flex-generated file included in the distribution?

Reducing dependencies (see "Releases" in the gnu standards manual),
apparently.  


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  reply	other threads:[~2005-06-16 23:53 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-06-15 11:47 configure.in: Look for flex Ludovic Courtès
2005-06-15 21:40 ` Kevin Ryde
2005-06-15 22:28   ` Rob Browning
2005-06-15 23:21     ` Kevin Ryde
2005-06-16  7:56   ` Ludovic Courtès
2005-06-16 23:53     ` Kevin Ryde [this message]
2005-06-17  7:19       ` Ludovic Courtès
2005-09-04 23:16         ` Marius Vollmer

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