From a3376482173bbc7f6be7e8f52f27ea56ccded37a Mon Sep 17 00:00:00 2001
From: Victor Koenders <victor.koenders@gmail.com>
Date: Thu, 7 Jan 2021 15:19:40 +0100
Subject: [PATCH] Fixed an issue when compiling no_std and no_optimize on a
 target with no alloc::sync

---
 src/stdlib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/stdlib.rs b/src/stdlib.rs
index 165b9068..8171750b 100644
--- a/src/stdlib.rs
+++ b/src/stdlib.rs
@@ -11,7 +11,9 @@ mod inner {
     #[cfg(not(target_arch = "wasm32"))]
     pub use core::{i128, u128};
 
-    pub use alloc::{borrow, boxed, format, rc, string, sync, vec};
+    #[cfg(feature = "sync")]
+    pub use alloc::sync;
+    pub use alloc::{borrow, boxed, format, rc, string, vec};
 
     pub use core_error as error;