From b158b4666d88eda3d9b9786fd427405749aff48f Mon Sep 17 00:00:00 2001
From: aycabta <aycabta@gmail.com>
Date: Wed, 28 Jul 2021 23:26:41 +0900
Subject: [PATCH] [ruby/reline] Check TYPE_VARIADIC

https://github.com/ruby/reline/commit/8e62e46e33
---
 lib/reline/terminfo.rb | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/reline/terminfo.rb b/lib/reline/terminfo.rb
index 5c881a375c..982fa3d5fa 100644
--- a/lib/reline/terminfo.rb
+++ b/lib/reline/terminfo.rb
@@ -19,6 +19,10 @@ module Reline::Terminfo
     else
       fiddle_supports_variadic = false
     end
+    if fiddle_supports_variadic and Fiddle.const_defined?(:TYPE_VARIADIC)
+      # If the libffi version is not 3.0.5 or higher, there isn't TYPE_VARIADIC.
+      fiddle_supports_variadic = false
+    end
     if fiddle_supports_variadic
       %w[libncursesw.so libcursesw.so libncurses.so libcurses.so].each do |curses_name|
         result = Fiddle::Handle.new(curses_name)