1 files changed, 1 insertions, 9 deletions
diff --git a/src/libstd/workcache.rs b/src/libstd/workcache.rs
index 8b394443170..71151c33060 100644
--- a/src/libstd/workcache.rs
+++ b/src/libstd/workcache.rs
@@ -79,6 +79,7 @@ use serialization::{Serializer,Serializable,
 *
 */
 
+#[deriving_eq]
 struct WorkKey {
     kind: ~str,
     name: ~str
@@ -100,15 +101,6 @@ impl WorkKey {
     }
 }
 
-impl WorkKey: core::cmp::Eq {
-    pure fn eq(&self, other: &WorkKey) -> bool {
-        self.kind == other.kind && self.name == other.name
-    }
-    pure fn ne(&self, other: &WorkKey) -> bool {
-        self.kind != other.kind || self.name != other.name
-    }
-}
-
 type WorkMap = LinearMap<WorkKey, ~str>;
 
 struct Database {