From f835a1b6626c1f077e9306eee8df25e31cb001f3 Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Tue, 22 May 2018 07:23:28 -0700
Subject: [PATCH] Followup to #345 to fix no_std errors.

---
 lib/wasm/src/lib.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/wasm/src/lib.rs b/lib/wasm/src/lib.rs
index d4caf9177c..6fe32541e2 100644
--- a/lib/wasm/src/lib.rs
+++ b/lib/wasm/src/lib.rs
@@ -30,7 +30,6 @@
 #![cfg_attr(not(feature = "std"), feature(alloc))]
 
 #[cfg(not(feature = "std"))]
-#[macro_use]
 extern crate alloc;
 
 #[allow(unused_extern_crates)]
@@ -65,6 +64,8 @@ mod std {
     pub use alloc::vec;
     pub use alloc::string;
     pub use core::{u32, i32, str, cmp};
+    pub use core::fmt;
+    pub use core::option;
     pub mod collections {
         pub use hashmap_core::{HashMap, map as hash_map};
     }