1 files changed, 6 insertions, 0 deletions
diff --git a/benchmark/driver.rb b/benchmark/driver.rb
index cbc72cf604..a8b524d926 100644
--- a/benchmark/driver.rb
+++ b/benchmark/driver.rb
@@ -238,6 +238,12 @@ class BenchmarkDriver
     result
   end
 
+  unless defined?(File::NULL)
+    if File.exist?('/dev/null')
+      File::NULL = '/dev/null'
+    end
+  end
+
   def measure executable, file
     cmd = "#{executable} #{@ruby_arg} #{file}"