From 9e37602884c2129d8ca5c5b669a3b91450a2933a Mon Sep 17 00:00:00 2001
From: takkanm <takkanm@gmail.com>
Date: Tue, 13 Feb 2018 22:01:49 +0900
Subject: [PATCH] suppress unused variable warning

---
 lib/ffi/library.rb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/ffi/library.rb b/lib/ffi/library.rb
index 904faba23..adfa106ab 100644
--- a/lib/ffi/library.rb
+++ b/lib/ffi/library.rb
@@ -344,7 +344,7 @@ def attach_variable(mname, a1, a2 = nil)
       raise FFI::NotFoundError.new(cname, ffi_libraries) if address.nil? || address.null?
       if type.is_a?(Class) && type < FFI::Struct
         # If it is a global struct, just attach directly to the pointer
-        s = type.new(address)
+        s = s = type.new(address) # Assigning twice to suppress unused variable warning
         self.module_eval <<-code, __FILE__, __LINE__
           @@ffi_gvar_#{mname} = s
           def self.#{mname}