lib/spring/sid.rb in spring-1.1.3 vs lib/spring/sid.rb in spring-1.2.0

@@ -23,10 +23,10 @@
     def self.sid
       @sid ||= begin
         if Process.respond_to?(:getsid)
           # Ruby 2
           Process.getsid
-        elsif defined?(Fiddle)
+        elsif defined?(Fiddle) and defined?(DL)
           # Ruby 1.9.3 compiled with libffi support
           fiddle_func.call(0)
         else
           # last resort: shell out
           `ps -p #{Process.pid} -o sess=`.to_i