From d3c212c5527f901fcb44d59d031695248762c340 Mon Sep 17 00:00:00 2001
From: Oliver Scherer <github35764891676564198441@oli-obk.de>
Date: Sun, 3 Feb 2019 12:55:00 +0100
Subject: Require a list of features to allow in `allow_internal_unstable`

---
 src/liballoc/macros.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'src/liballoc')

diff --git a/src/liballoc/macros.rs b/src/liballoc/macros.rs
index db91b07fa71..7ae57a8dc79 100644
--- a/src/liballoc/macros.rs
+++ b/src/liballoc/macros.rs
@@ -34,7 +34,8 @@
 #[cfg(not(test))]
 #[macro_export]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[allow_internal_unstable]
+#[cfg_attr(not(stage0), allow_internal_unstable(box_syntax))]
+#[cfg_attr(stage0, allow_internal_unstable)]
 macro_rules! vec {
     ($elem:expr; $n:expr) => (
         $crate::vec::from_elem($elem, $n)
-- 
cgit 1.4.1-3-g733a5