From 681e5da61ee3f1251c00c2ec0d93dd23dbf861bc Mon Sep 17 00:00:00 2001
From: Alex Burka <alex@alexburka.com>
Date: Fri, 8 Sep 2017 18:26:54 +0000
Subject: change #![feature(const_fn)] to specific gates

---
 src/libstd/sync/once.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libstd/sync')

diff --git a/src/libstd/sync/once.rs b/src/libstd/sync/once.rs
index 403685a4b8e..015106fc2e5 100644
--- a/src/libstd/sync/once.rs
+++ b/src/libstd/sync/once.rs
@@ -156,6 +156,7 @@ struct Finish {
 impl Once {
     /// Creates a new `Once` value.
     #[stable(feature = "once_new", since = "1.2.0")]
+    #[cfg_attr(not(stage0), rustc_const_unstable(feature = "const_once_new"))]
     pub const fn new() -> Once {
         Once {
             state: AtomicUsize::new(INCOMPLETE),
-- 
cgit 1.4.1-3-g733a5