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

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From: Mathieu Lirzin <mthl <at> gnu.org>
To: Daniel Schepler <dschepler <at> gmail.com>
Cc: 23602 <at> debbugs.gnu.org
Subject: 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

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