1 files changed, 8 insertions, 0 deletions
diff --git a/src/libsyntax/parse/obsolete.rs b/src/libsyntax/parse/obsolete.rs
index e486a6254e7..a4ac038cf46 100644
--- a/src/libsyntax/parse/obsolete.rs
+++ b/src/libsyntax/parse/obsolete.rs
@@ -62,12 +62,20 @@ pub enum ObsoleteSyntax {
     ObsoleteFixedLengthVectorType,
 }
 
+#[cfg(stage0)]
 impl to_bytes::IterBytes for ObsoleteSyntax {
     #[inline(always)]
     fn iter_bytes(&self, lsb0: bool, f: to_bytes::Cb) {
         (*self as uint).iter_bytes(lsb0, f);
     }
 }
+#[cfg(not(stage0))]
+impl to_bytes::IterBytes for ObsoleteSyntax {
+    #[inline(always)]
+    fn iter_bytes(&self, lsb0: bool, f: to_bytes::Cb) -> bool {
+        (*self as uint).iter_bytes(lsb0, f)
+    }
+}
 
 pub impl Parser {
     /// Reports an obsolete syntax non-fatal error.