GNU bug report logs - #12877
automake error: unrequested trace ''

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From: Stefano Lattarini <stefano.lattarini <at> gmail.com>
To: Sebastian Freundt <sebastian.freundt <at> ga-group.nl>
Cc: 12877 <at> debbugs.gnu.org, Autoconf <Autoconf <at> gnu.org>
Subject: bug#12877: Autoconf, GNU m4 and POSIXLY_CORRECT (was: Re: bug#12877: automake error: unrequested trace '')
Date: Wed, 14 Nov 2012 11:59:08 +0100

[+cc autoconf]

On 11/14/2012 07:45 AM, Sebastian Freundt wrote:
> Stefano Lattarini <stefano.lattarini <at> gmail.com> writes:
> 
>> tags 12877 + moreinfo
>> thanks
>>
>> Hi Sebastian, thanks for the report.
>>
>> On 11/13/2012 11:30 AM, Sebastian Freundt wrote:
>>> shell> automake --version
>>> automake (GNU automake) 1.12.1
>>>
>>> autoreconf: running: automake --add-missing --copy --force-missing
>>> Use of uninitialized value $macro in exists at /home/freundt/usr/bin/automake line 5267, <GEN0> line 2.
>>> Use of uninitialized value $macro in concatenation (.) or string at /home/freundt/usr/bin/automake line 5267, <GEN0> line 2.
>>> automake: error: unrequested trace ''
>>> automake: Please contact <bug-automake <at> gnu.org>.
>>>  at /home/freundt/usr/share/automake-1.12/Automake/Channels.pm line 662
>>>         Automake::Channels::msg('automake', '', 'unrequested trace \'\'') called at /home/freundt/usr/share/automake-1.12/Automake/ChannelDefs.pm line 212
>>>         Automake::ChannelDefs::prog_error('unrequested trace \'\'') called at /home/freundt/usr/bin/automake line 5267
>>>         Automake::scan_autoconf_traces('configure.ac') called at /home/freundt/usr/bin/automake line 5533
>>>         Automake::scan_autoconf_files() called at /home/freundt/usr/bin/automake line 8588
>>> autoreconf: automake failed with exit status: 29
>>>
>>> In project: https://quickplot.svn.sf.net/svnroot/quickplot/trunk
>>>
>> I cannot reproduce this failure with the latest automake release (1.12.4).
>> I've tried with both autoconf 2.69 and autoconf 2.65, just to be extra sure.
>>
>> Does the error disappear for you as well if you use automake 1.12.4?
> 
> Ah, I found the culprit.  But first off, the tag v1.12.4 isn't in the
> savannah git repo yet.
>
Yikes!  Thank you very much for catching that, it's fixed now.

> (GNU) m4 when being called with the variable POSIXLY_CORRECT behaves
> differently as all GNU extensions will be suppressed.
>
Modern autoconf versions used with modern GNU m4 versions should pass
the latter the '-g' option, so that the POSIXLY_CORRECT variable does
not have any effect on the behaviour of GNU m4.  Which versions of
autoconf and m4 are you using?

> I recently populated this var in my shell setup because coreutils
> need it to work around some SysV quirks.
> 
> So the workaround of the day (mostly a note to myself) is to unset
> POSIXLY_CORRECT temporarily when dealing with autotools.
> 
> Cheers
> Sebastian

Thanks,
  Stefano

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