From 7ff1c39e01a12c9fa94783c65eda77c94ec81f3b Mon Sep 17 00:00:00 2001
From: steve donovan <steve.j.donovan@gmail.com>
Date: Sun, 22 Jul 2018 17:06:13 +0200
Subject: [PATCH] Engine should be Clone

---
 src/engine.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/engine.rs b/src/engine.rs
index aeb3551d..81bd97e2 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -124,7 +124,7 @@ pub struct FnSpec {
 ///     }
 /// }
 /// ```
-// #[derive(Clone)]
+#[derive(Clone)]
 pub struct Engine {
     /// A hashmap containing all functions known to the engine
     pub fns: HashMap<FnSpec, Arc<FnIntExt>>,