GNU bug report logs - #23602
Unescaped left brace in regex is deprecated, passed through in regex

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

From: carl hansen <carlhansen1234 <at> gmail.com>
To: bug-automake <at> gnu.org
Subject: Unescaped left brace in regex is deprecated, passed through in regex
Date: Sun, 22 May 2016 23:23:23 -0700

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

>> automake --version
Unescaped left brace in regex is deprecated, passed through in regex;
marked by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at
/opt/gsrc/bin/automake line 3936.
automake (GNU automake) 1.15
Copyright (C) 2014 Free Software Foundation, Inc.
License GPLv2+: GNU GPL version 2 or later ....


using perl 5.22.1

how to fix ?

[Message part 2 (text/html, inline)]

Message #8 received at 23602 <at> debbugs.gnu.org (full text, mbox):

From: carl hansen <carlhansen1234 <at> gmail.com>
To: 23602 <at> debbugs.gnu.org
Subject: Re: bug#23602: Unescaped left brace in regex is deprecated, passed
 through in regex
Date: Sun, 22 May 2016 23:39:03 -0700

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

On Sun, May 22, 2016 at 11:23 PM, carl hansen <carlhansen1234 <at> gmail.com>
wrote:

> >> automake --version
> Unescaped left brace in regex is deprecated, passed through in regex;
> marked by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at
> /opt/gsrc/bin/automake line 3936.
> automake (GNU automake) 1.15
> Copyright (C) 2014 Free Software Foundation, Inc.
> License GPLv2+: GNU GPL version 2 or later ....
>
>
> using perl 5.22.1
>
> how to fix ?
>
>
>
>  was:

   $text =~ s/\${([^ \t=:+{}]+)}/substitute_ac_subst_variables_worker
($1)/ge;

following the message, this seems to work; not thoroughly tested:

   $text =~ s/\$\{([^ \t=:+{}]+)\}/substitute_ac_subst_variables_worker
($1)/ge;

leaning toothpicks....

[Message part 2 (text/html, inline)]

Message #11 received at 23602 <at> debbugs.gnu.org (full text, mbox):

From: Pavel Sanda <sanda <at> lyx.org>
To: 23602 <at> debbugs.gnu.org
Subject: bug#23602: [PATCH] Unescaped left brace in regex is deprecated,
 passed through in regex
Date: Mon, 2 Jan 2017 15:34:09 -0800

On Sun, May 22, 2016 at 11:23 PM, carl hansen <address <at> hidden> wrote:
>>> automake --version
>Unescaped left brace in regex is deprecated, passed through in regex; marked by <-- HERE in m/\${ <-- HERE ([^ \t=:+{}]+)}/ at /opt/gsrc/bin/automake line 3936.
>automake (GNU automake) 1.15

It seems that various distributions started to fix this on their own.
Could anyone responsible push this trivial fix to the upstream?

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=202986

Pavel

Message #14 received at 23602 <at> debbugs.gnu.org (full text, mbox):

From: Daniel Schepler <dschepler <at> gmail.com>
To: 23602 <at> debbugs.gnu.org
Subject: automake does not work at all with Perl 5.26.0
Date: Fri, 2 Jun 2017 12:25:06 -0700

With the recent release of Perl 5.26.0, this warning has become an
error, so automake doesn't work at all on any packages.  For example,
with libvncserver-0.9.11 (which doesn't provide any release tarball
with pregenerated autotools):

...
autoreconf: running: automake --add-missing --copy
Unescaped left brace in regex is illegal here in regex; marked by <--
HERE in m/\${ <-- HERE ([6 \t=:={}]+)}/ at /usr/bin/automake line
3936.
autoreconf: automake failed with exit status: 255
-- 
Daniel Schepler

Message #17 received at 23602 <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Lirzin <mthl <at> gnu.org>
To: Daniel Schepler <dschepler <at> gmail.com>
Cc: 23602 <at> debbugs.gnu.org
Subject: Re: bug#23602: automake does not work at all with Perl 5.26.0
Date: Mon, 05 Jun 2017 00:24:27 +0200

Hello Daniel,

Daniel Schepler <dschepler <at> gmail.com> writes:

> With the recent release of Perl 5.26.0, this warning has become an
> error, so automake doesn't work at all on any packages.  For example,
> with libvncserver-0.9.11 (which doesn't provide any release tarball
> with pregenerated autotools):
>
> ...
> autoreconf: running: automake --add-missing --copy
> Unescaped left brace in regex is illegal here in regex; marked by <--
> HERE in m/\${ <-- HERE ([6 \t=:={}]+)}/ at /usr/bin/automake line
> 3936.
> autoreconf: automake failed with exit status: 255

What version of Automake are you running?

I suspect this issue has already been fixed in the Git repository, see:

  https://git.savannah.gnu.org/cgit/automake.git/commit/?h=micro&id=13f00eb4493c217269b76614759e452d8302955e

This will be fixed in the next micro release, that I expect to be able
to make this summer.

Thanks for you report.

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

Message #20 received at 23602 <at> debbugs.gnu.org (full text, mbox):

From: Hans-Bernhard Bröker <HBBroeker <at> t-online.de>
To: Mathieu Lirzin <mthl <at> gnu.org>, Daniel Schepler <dschepler <at> gmail.com>
Cc: 23602 <at> debbugs.gnu.org
Subject: Re: bug#23602: automake does not work at all with Perl 5.26.0
Date: Mon, 5 Jun 2017 15:03:28 +0200

Am 05.06.2017 um 00:24 schrieb Mathieu Lirzin:

> I suspect this issue has already been fixed in the Git repository, see:
> 
>    https://git.savannah.gnu.org/cgit/automake.git/commit/?h=micro&id=13f00eb4493c217269b76614759e452d8302955e

Indeed, Paul Eggert applied a fix in March 2016.

> This will be fixed in the next micro release, that I expect to be able
> to make this summer.

Good to hear that.

Message #23 received at 23602 <at> debbugs.gnu.org (full text, mbox):

From: Mathieu Lirzin <mthl <at> gnu.org>
To: Hans-Bernhard Bröker <HBBroeker <at> t-online.de>
Cc: Daniel Schepler <dschepler <at> gmail.com>, 23602 <at> debbugs.gnu.org
Subject: Re: bug#23602: automake does not work at all with Perl 5.26.0
Date: Sun, 16 Jul 2017 12:39:13 +0200

Hello,

Hans-Bernhard Bröker <HBBroeker <at> t-online.de> writes:

> Am 05.06.2017 um 00:24 schrieb Mathieu Lirzin:
>
>> I suspect this issue has already been fixed in the Git repository, see:
>>
>>    https://git.savannah.gnu.org/cgit/automake.git/commit/?h=micro&id=13f00eb4493c217269b76614759e452d8302955e
>
> Indeed, Paul Eggert applied a fix in March 2016.
>
>> This will be fixed in the next micro release, that I expect to be able
>> to make this summer.
>
> Good to hear that.

This has been fixed in Automake 1.15.1.

Thanks.

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

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