From 9c7969d3df6ce1cd5370eea32f18a08dc1f0850d Mon Sep 17 00:00:00 2001
From: Jeffrey Seyfried <jeffrey.seyfried@gmail.com>
Date: Wed, 6 Dec 2017 10:50:55 -0800
Subject: Use hygiene to access the injected crate (`core` or `std`) from
 builtin macros.

---
 src/libsyntax_ext/lib.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libsyntax_ext/lib.rs')

diff --git a/src/libsyntax_ext/lib.rs b/src/libsyntax_ext/lib.rs
index 42bbb4ae0cb..82d6ee5afa0 100644
--- a/src/libsyntax_ext/lib.rs
+++ b/src/libsyntax_ext/lib.rs
@@ -16,6 +16,7 @@
 #![deny(warnings)]
 
 #![feature(proc_macro_internals)]
+#![feature(decl_macro)]
 
 extern crate fmt_macros;
 #[macro_use]
-- 
cgit 1.4.1-3-g733a5