From 2f2df2ad0b5a76df47b7b5f0617dd5397989003a Mon Sep 17 00:00:00 2001
From: Abhishek Kumar <kr11.abhishek@gmail.com>
Date: Fri, 2 Sep 2016 02:21:53 +0530
Subject: [PATCH] Update compiler error E0558 to use new error format

Fixes #36196 part of #35233
---
 src/libsyntax/attr.rs          | 2 +-
 src/test/compile-fail/E0558.rs | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/src/libsyntax/attr.rs b/src/libsyntax/attr.rs
index 703f3f7adf910..3cd066acdb828 100644
--- a/src/libsyntax/attr.rs
+++ b/src/libsyntax/attr.rs
@@ -438,7 +438,7 @@ pub fn find_export_name_attr(diag: &Handler, attrs: &[Attribute]) -> Option<Inte
             } else {
                 struct_span_err!(diag, attr.span, E0558,
                                  "export_name attribute has invalid format")
-                                .help("use #[export_name=\"*\"]")
+                                .span_label(attr.span, &format!("did you mean #[export_name=\"*\"]?"))
                                 .emit();
                 None
             }
diff --git a/src/test/compile-fail/E0558.rs b/src/test/compile-fail/E0558.rs
index 4ab0506a9c0cd..0c2ca69849166 100644
--- a/src/test/compile-fail/E0558.rs
+++ b/src/test/compile-fail/E0558.rs
@@ -8,7 +8,10 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
-#[export_name] //~ ERROR E0558
+#[export_name]
+//~^ ERROR E0558
+//~| NOTE did you mean #[export_name="*"]?
+
 pub fn something() {}
 
 fn main() {}