automake: Backport perl 5.22 fix

Backport 13f00eb4493c "automake: port to Perl 5.22 and later"
from automake upstream to fix build with perl 5.22 .

(From OE-Core rev: 7fa044e799db651d45e4732e2527acfc2bc7cd47)

(From OE-Core rev: 139d15f4af282eeef0a7f368eef518f400a4471a)

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Ross Burton <ross.burton@intel.com>
Cc: Richard Purdie <richard.purdie@linuxfoundation.org>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Cody P Schafer <dev@codyps.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 35 insertions, 1 deletions

diff --git a/meta/recipes-devtools/automake/automake/0001-automake-port-to-Perl-5.22-and-later.patch b/meta/recipes-devtools/automake/automake/0001-automake-port-to-Perl-5.22-and-later.patch
new file mode 100644
index 0000000000..0e6895fb4b
--- /dev/null
+++ b/meta/recipes-devtools/automake/automake/0001-automake-port-to-Perl-5.22-and-later.patch
@@ -0,0 +1,32 @@
+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.
+
+Upstream-Status: Backport [13f00eb4493c217269b76614759e452d8302955e]
+---
+ bin/automake.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/bin/automake.in b/bin/automake.in
+index a3a0aa318..2c8f31e14 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 $text;
+ }
+ 
+-- 
+2.11.0
+
diff --git a/meta/recipes-devtools/automake/automake_1.15.bb b/meta/recipes-devtools/automake/automake_1.15.bb
index a3c72fd334..61ae3ba3e3 100644
--- a/meta/recipes-devtools/automake/automake_1.15.bb
+++ b/meta/recipes-devtools/automake/automake_1.15.bb
@@ -21,7 +21,9 @@ RDEPENDS_${PN}_class-native = "autoconf-native hostperl-runtime-native"
 SRC_URI += " file://python-libdir.patch \
             file://buildtest.patch \
             file://performance.patch \
-            file://new_rt_path_for_test-driver.patch"
+            file://new_rt_path_for_test-driver.patch \
+            file://0001-automake-port-to-Perl-5.22-and-later.patch \
+            "
 
 SRC_URI[md5sum] = "716946a105ca228ab545fc37a70df3a3"
 SRC_URI[sha256sum] = "7946e945a96e28152ba5a6beb0625ca715c6e32ac55f2e353ef54def0c8ed924"