1 files changed, 7 insertions, 1 deletions
diff --git a/src/libsyntax/ext/source_util.rs b/src/libsyntax/ext/source_util.rs
index 7c2c5c1530c..a49df457cb3 100644
--- a/src/libsyntax/ext/source_util.rs
+++ b/src/libsyntax/ext/source_util.rs
@@ -163,7 +163,13 @@ pub fn expand_include_str(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
 
 pub fn expand_include_bin(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
                           -> Box<base::MacResult+'static> {
-    let file = match get_single_str_from_tts(cx, sp, tts, "include_bin!") {
+    cx.span_warn(sp, "include_bin! is deprecated; use include_bytes! instead");
+    expand_include_bytes(cx, sp, tts)
+}
+
+pub fn expand_include_bytes(cx: &mut ExtCtxt, sp: Span, tts: &[ast::TokenTree])
+                            -> Box<base::MacResult+'static> {
+    let file = match get_single_str_from_tts(cx, sp, tts, "include_bytes!") {
         Some(f) => f,
         None => return DummyResult::expr(sp)
     };