3 files changed, 3 insertions, 3 deletions
diff --git a/src/libsyntax/ext/base.rs b/src/libsyntax/ext/base.rs
index b679456b353..71fba789ff8 100644
--- a/src/libsyntax/ext/base.rs
+++ b/src/libsyntax/ext/base.rs
@@ -318,7 +318,7 @@ impl MacResult for MacEager {
 
 /// Fill-in macro expansion result, to allow compilation to continue
 /// after hitting errors.
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub struct DummyResult {
     expr_only: bool,
     span: Span
diff --git a/src/libsyntax/ext/deriving/cmp/ord.rs b/src/libsyntax/ext/deriving/cmp/ord.rs
index b2b26548018..8ecd172b2f0 100644
--- a/src/libsyntax/ext/deriving/cmp/ord.rs
+++ b/src/libsyntax/ext/deriving/cmp/ord.rs
@@ -84,7 +84,7 @@ pub fn expand_deriving_ord<F>(cx: &mut ExtCtxt,
     trait_def.expand(cx, mitem, item, push)
 }
 
-#[derive(Copy)]
+#[derive(Copy, Clone)]
 pub enum OrderingOp {
     PartialCmpOp, LtOp, LeOp, GtOp, GeOp,
 }
diff --git a/src/libsyntax/ext/mtwt.rs b/src/libsyntax/ext/mtwt.rs
index a2023d6832e..f514f72d565 100644
--- a/src/libsyntax/ext/mtwt.rs
+++ b/src/libsyntax/ext/mtwt.rs
@@ -38,7 +38,7 @@ pub struct SCTable {
     rename_memo: RefCell<HashMap<(SyntaxContext,Ident,Name),SyntaxContext>>,
 }
 
-#[derive(PartialEq, RustcEncodable, RustcDecodable, Hash, Debug, Copy)]
+#[derive(PartialEq, RustcEncodable, RustcDecodable, Hash, Debug, Copy, Clone)]
 pub enum SyntaxContext_ {
     EmptyCtxt,
     Mark (Mrk,SyntaxContext),