GNU bug report logs - #32868
Check if make supports nested variables is done twice when using silent rules

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Mike Frysinger <vapier <at> gentoo.org>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#32868: closed (Check if make supports nested variables is
 done twice when using silent rules)
Date: Tue, 01 Mar 2022 06:53:02 +0000

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Your message dated Tue, 1 Mar 2022 01:52:07 -0500
with message-id <Yh3Cl8la1ip9/0xU <at> vapier>
and subject line Re: bug#32868: [PATCH v2] m4: rework silent-rules macros to avoid double expansion
has caused the debbugs.gnu.org bug report #32868,
regarding Check if make supports nested variables is done twice when using silent rules
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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32868: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=32868
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Contact help-debbugs <at> gnu.org with problems

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From: Eric Blake <eblake <at> redhat.com>
To: Jacob Kroon <jacob.kroon <at> gmail.com>, bug-autoconf <at> gnu.org,
 bug-automake <at> gnu.org
Subject: Re: Check if make supports nested variables is done twice when using
 silent rules
Date: Fri, 28 Sep 2018 15:36:40 -0500

On 9/28/18 1:47 PM, Jacob Kroon wrote:
> Hi,
> 
> If I use AM_SILENT_RULES([yes]) in my configure.ac, when I run the
> configure scripts I see this:
> ...
> checking whether make supports nested variables... yes
> checking whether make supports nested variables... (cached) yes
> ...
> 
> If I remove AM_SILENT_RULES, the test is only done once.
> 
> Is this intended behaviour ?

I don't know. But AM_SILENT_RULES is supplied by automake, not autoconf, 
so it's better to ask your question on the correct list.  I've gone 
ahead and updated the CC's accordingly.

> 
> I'm on an updated Debian Stretch system using (Debian version syntax):
> autoconf 2.69-10
> automake 1:1.15-6
> 
> Regards Jacob
> 
> 

-- 
Eric Blake, Principal Software Engineer
Red Hat, Inc.           +1-919-301-3266
Virtualization:  qemu.org | libvirt.org

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From: Mike Frysinger <vapier <at> gentoo.org>
To: Karl Berry <karl <at> freefriends.org>
Cc: 32868-done <at> debbugs.gnu.org
Subject: Re: bug#32868: [PATCH v2] m4: rework silent-rules macros to avoid
 double expansion
Date: Tue, 1 Mar 2022 01:52:07 -0500

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On 28 Feb 2022 15:58, Karl Berry wrote:
>     Fixes automake bug https://bugs.gnu.org/32868.
> 
> Looks fine to me.
> 
>     +./configure -C
>     +grep '^AM_DEFAULT_VERBOSITY = 1' Makefile
> 
> Good :).
> 
> I remain steadfastly opposed to (ever) changing the default to be silent
> rules, as we've already discussed ad nauseam :).

we shall see :p
-mike

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