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-rw-r--r--src/libsyntax/codemap.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libsyntax/codemap.rs b/src/libsyntax/codemap.rs
index b41e84a04f8..10a4e12bef4 100644
--- a/src/libsyntax/codemap.rs
+++ b/src/libsyntax/codemap.rs
@@ -130,6 +130,7 @@ pub struct span {
 
 #[auto_encode]
 #[auto_decode]
+#[deriving_eq]
 pub struct spanned<T> { node: T, span: span }
 
 pub impl span : cmp::Eq {