From 6998a6f70d80b0525952ad51d17529ece117d962 Mon Sep 17 00:00:00 2001
From: Andrew Blake <andrew.blake@rradar.com>
Date: Thu, 25 Mar 2021 08:23:53 +0000
Subject: [PATCH] Condition use of ruby2_keywords to avoid introducing gem
 dependency

---
 lib/sinatra/base.rb | 3 +--
 sinatra.gemspec     | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/lib/sinatra/base.rb b/lib/sinatra/base.rb
index 642721aba9..64e0d01170 100644
--- a/lib/sinatra/base.rb
+++ b/lib/sinatra/base.rb
@@ -8,7 +8,6 @@
 require 'mustermann'
 require 'mustermann/sinatra'
 require 'mustermann/regular'
-require 'ruby2_keywords'
 
 # stdlib dependencies
 require 'thread'
@@ -1950,7 +1949,7 @@ def self.delegate(*methods)
           Delegator.target.send(method_name, *args, &block)
         end
         # ensure keyword argument passing is compatible with ruby >= 2.7
-        ruby2_keywords method_name
+        ruby2_keywords(method_name) if respond_to?(:ruby2_keywords, true)
         private method_name
       end
     end
diff --git a/sinatra.gemspec b/sinatra.gemspec
index c20d887ea0..93a22ae4b5 100644
--- a/sinatra.gemspec
+++ b/sinatra.gemspec
@@ -47,5 +47,4 @@ EOF
   s.add_dependency 'tilt', '~> 2.0'
   s.add_dependency 'rack-protection', version
   s.add_dependency 'mustermann', '~> 1.0'
-  s.add_dependency 'ruby2_keywords', '~> 0.0.4'
 end