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From 13f00eb4493c217269b76614759e452d8302955e Mon Sep 17 00:00:00 2001

From: Paul Eggert <eggert@cs.ucla.edu>

Date: Thu, 31 Mar 2016 16:35:29 -0700

Subject: [PATCH] automake: port to Perl 5.22 and later

​

Without this change, Perl 5.22 complains "Unescaped left brace in

regex is deprecated" and this is planned to become a hard error in

Perl 5.26.  See:

http://search.cpan.org/dist/perl-5.22.0/pod/perldelta.pod#A_literal_%22{%22_should_now_be_escaped_in_a_pattern

* bin/automake.in (substitute_ac_subst_variables): Escape left brace.

​

[Backported from:

 http://git.savannah.gnu.org/cgit/automake.git/commit/?id=13f00eb4493c217269b76614759e452d8302955e]

Signed-off-by: Adam Duskett <aduskett@gmail.com>

---

 bin/automake.in | 2 +-

 1 file changed, 1 insertion(+), 1 deletion(-)

​

diff --git a/bin/automake.in b/bin/automake.in

index a3a0aa3..2c8f31e 100644

--- a/bin/automake.in

+++ b/bin/automake.in

@@ -3878,7 +3878,7 @@ sub substitute_ac_subst_variables_worker

 sub substitute_ac_subst_variables

 {

   my ($text) = @_;

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

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

   return $text;

 }

-- 

2.7.4

​