From 266eb18024dab966c7a2537fb1e2eb91b047fd52 Mon Sep 17 00:00:00 2001
From: Akira Matsuda <ronnie@dio.jp>
Date: Fri, 2 Feb 2018 19:55:08 +0900
Subject: [PATCH] When finding ruby, skip loading rubygems for the speed

---
 lib/systemu.rb | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/systemu.rb b/lib/systemu.rb
index 5f7745a..963844c 100644
--- a/lib/systemu.rb
+++ b/lib/systemu.rb
@@ -35,10 +35,10 @@ def self.ruby
 
     c = begin; ::RbConfig::CONFIG; rescue NameError; ::Config::CONFIG; end
     ruby = File.join(c['bindir'], c['ruby_install_name']) << c['EXEEXT']
-    @ruby = if system(ruby, '-e', '42')
+    @ruby = if system(ruby, '--disable-gems', '-e', '42')
       ruby
     else
-      system('ruby', '-e', '42') ? 'ruby' : warn('no ruby in PATH/CONFIG')
+      system('ruby', '--disable-gems', '-e', '42') ? 'ruby' : warn('no ruby in PATH/CONFIG')
     end
   end