From 2b1c46c3b1955cba5a5820e05f8637d203f7f6ce Mon Sep 17 00:00:00 2001
From: Earlopain <14981592+Earlopain@users.noreply.github.com>
Date: Thu, 14 Mar 2024 19:51:21 +0100
Subject: [PATCH] Fix warning when executing `rubocop` with `bundle exec`

`check_commit.rake` requires 'English' but when doing `bundle exec rubocop` this file will also be evaluated.

```
earlopain@DESKTOP-PC rubocop-ast]$ RUBYOPT=-w bundle exec rubocop -V
/home/earlopain/Documents/rubocop-ast/rubocop-ast.gemspec:18: warning: global variable `$RS' not initialized
1.62.1 (using Parser 3.3.0.5, rubocop-ast 1.31.2, running on ruby 3.3.0) [x86_64-linux]
  - rubocop-performance 1.20.2
  - rubocop-rspec 2.27.1
```
---
 CHANGELOG.md        | 5 +++++
 rubocop-ast.gemspec | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 55a043b3a..b4f08d929 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## master (unreleased)
 
+### Bug fixes
+
+* [#288](https://github.com/rubocop/rubocop-ast/pull/288): Fix a Ruby warning (`RUBYOPT=-w`) when doing `bundle exec rubocop` during `rubocop-ast` development. ([@Earlopain][])
+
 ## 1.31.2 (2024-03-08)
 
 ### Bug fixes
@@ -451,3 +455,4 @@
 [@tdeo]: https://github.com/tdeo
 [@ydah]: https://github.com/ydah
 [@sambostock]: https://github.com/sambostock
+[@Earlopain]: https://github.com/Earlopain
diff --git a/rubocop-ast.gemspec b/rubocop-ast.gemspec
index 7d79bfd7e..99cf3f375 100644
--- a/rubocop-ast.gemspec
+++ b/rubocop-ast.gemspec
@@ -15,7 +15,7 @@ Gem::Specification.new do |s|
 
   s.email = 'rubocop@googlegroups.com'
   s.files = `git ls-files lib LICENSE.txt README.md`
-            .split($RS) + %w[
+            .split($/) + %w[
               lib/rubocop/ast/node_pattern/parser.racc.rb
               lib/rubocop/ast/node_pattern/lexer.rex.rb
             ]