From 5cf9f6330a02a0e86f08223289c74b36fba784db Mon Sep 17 00:00:00 2001
From: est31 <MTest31@outlook.com>
Date: Thu, 10 Aug 2017 01:42:36 +0200
Subject: Add a feature gate

@alexcrichton figured out a way how to do it :)
---
 src/libsyntax_ext/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src/libsyntax_ext')

diff --git a/src/libsyntax_ext/lib.rs b/src/libsyntax_ext/lib.rs
index 558d2e90310..5eab81dd28f 100644
--- a/src/libsyntax_ext/lib.rs
+++ b/src/libsyntax_ext/lib.rs
@@ -89,7 +89,7 @@ pub fn register_builtins(resolver: &mut syntax::ext::base::Resolver,
     use syntax::ext::source_util::*;
     register! {
         line: expand_line,
-        __rust_unstable_column: expand_column,
+        __rust_unstable_column: expand_column_gated,
         column: expand_column,
         file: expand_file,
         stringify: expand_stringify,
-- 
cgit 1.4.1-3-g733a5