From ce3f0719e6a19fce9fee7c361eb04a805730a668 Mon Sep 17 00:00:00 2001
From: Rolf Karp <rolf.karp@gmail.com>
Date: Fri, 3 Nov 2017 15:21:05 +0100
Subject: [PATCH] Fix std compile error for windows-gnu targets without
 `backtrace` feature

---
 src/libstd/sys/windows/c.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libstd/sys/windows/c.rs b/src/libstd/sys/windows/c.rs
index 39e00270233..6e0cccff001 100644
--- a/src/libstd/sys/windows/c.rs
+++ b/src/libstd/sys/windows/c.rs
@@ -1228,7 +1228,7 @@ compat_fn! {
     }
 }
 
-#[cfg(target_env = "gnu")]
+#[cfg(all(target_env = "gnu", feature = "backtrace"))]
 mod gnu {
     use super::*;
 
@@ -1256,5 +1256,5 @@ mod gnu {
     }
 }
 
-#[cfg(target_env = "gnu")]
+#[cfg(all(target_env = "gnu", feature = "backtrace"))]
 pub use self::gnu::*;