GNU bug report logs - #21001
Testsuite failure with new Perl

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Pavel Raiskup <praiskup <at> redhat.com>
To: Automake Patches <automake-patches <at> gnu.org>,
 Automake Bugs <bug-automake <at> gnu.org>
Subject: Testsuite failure with new Perl
Date: Tue, 07 Jul 2015 11:36:53 +0200

[Message part 1 (text/plain, inline)]

Based on build failure in Fedora 23 [1], automake has some testsuite
failures against newer perl (currently Perl v5.22).  Its because of new
Perl warning:

  $ automake
  Unescaped left brace in regex is deprecated, passed through in regex;
  marked by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at
  /usr/bin/automake line 3936.

Please consider the attached patch.

[1] https://bugzilla.redhat.com/attachment.cgi?id=1046458
Pavel

[0001-bin-automake-escape-in-regexp-pattern.patch (text/x-patch, attachment)]

Message #12 received at 21001 <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Lirzin <mthl <at> gnu.org>
To: ludo <at> gnu.org (Ludovic Courtès)
Cc: 22372 <at> debbugs.gnu.org, 21001 <at> debbugs.gnu.org
Subject: Re: bug#22372: [PATCH] automake.in: fix deprecated regex syntax
Date: Sun, 16 Jul 2017 15:24:04 +0200

Hello,

ludo <at> gnu.org (Ludovic Courtès) writes:

> Enrico Jorns <ejo <at> pengutronix.de> skribis:
>
>> Running automake with perl >= 5.22.0 produces the warning
>>
>>   Unescaped left brace in regex is deprecated, passed through in regex;
>>   marked by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at
>>   /ptx/work/dude/ejo/temptest/nodistro.0/sysroots/x86_64-oesdk-linux/usr/bin/automake
>>   line 3936.
>>
>> With perl-5.22.0 using a literal '{' in regexp is deprecated and should
>> be escaped.
>> This patch escapes the '{' characters to match in the regex of function
>> `substitute_ac_subst_variables_worker`.
>
> I confirm that this solves the problem.
>
> This had previously been reported at
> <https://lists.gnu.org/archive/html/automake-patches/2015-07/msg00000.html>.
> I think it would be nice to apply it and put up a 1.15.1 release because
> more and more people will hit this issue.

This has been fixed in Automake 1.15.1.  I am closing this bug.

Thanks.

-- 
Mathieu Lirzin
GPG: F2A3 8D7E EB2B 6640 5761  070D 0ADE E100 9460 4D37

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