[rtems-tools commit] Fix ithe automake warning with newer perl versions.

[Chris Johns]

Module:    rtems-tools
Branch:    master
Commit:    6bc1ecedd24082765af250fb72baf20fa48d4afd
Changeset: http://git.rtems.org/rtems-tools/commit/?id=6bc1ecedd24082765af250fb72baf20fa48d4afd

Author:    Chris Johns <chrisj at rtems.org>
Date:      Mon Feb 29 08:59:26 2016 +1100

Fix ithe automake warning with newer perl versions.

This patch is based on this post ..

https://lists.gnu.org/archive/html/automake-patches/2015-07/msg00000.html

This warnign appears with a recent MSYS2.

Update #2616.

---

 .../automake/automake-1.12.6-bugzilla.redhat.com-1239379.diff | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/4.12/automake/automake-1.12.6-bugzilla.redhat.com-1239379.diff b/tools/4.12/automake/automake-1.12.6-bugzilla.redhat.com-1239379.diff
new file mode 100644
index 0000000..2f8ba6e
--- /dev/null
+++ b/tools/4.12/automake/automake-1.12.6-bugzilla.redhat.com-1239379.diff
@@ -0,0 +1,11 @@
+--- automake-1.12.6/automake.in.orig	2016-02-28 09:52:53.000000000 +1100
++++ automake-1.12.6/automake.in	2016-02-28 09:53:00.000000000 +1100
+@@ -4030,7 +4030,7 @@
+ 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;
+ }
+