From bc8e5f82c890349131b27b4b3f1a24911e78d4b9 Mon Sep 17 00:00:00 2001
From: Dan Gohman <sunfish@mozilla.com>
Date: Wed, 1 Aug 2018 14:10:54 -0700
Subject: [PATCH] Add use declarations needed for no_std mode.

---
 lib/codegen/src/print_errors.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/codegen/src/print_errors.rs b/lib/codegen/src/print_errors.rs
index 15c6fe7dda..f85f5ccfc4 100644
--- a/lib/codegen/src/print_errors.rs
+++ b/lib/codegen/src/print_errors.rs
@@ -5,6 +5,7 @@ use ir::entities::Inst;
 use ir::function::Function;
 use isa::{RegInfo, TargetIsa};
 use result::CodegenError;
+use std::boxed::Box;
 use std::fmt;
 use std::fmt::Write;
 use std::string::{String, ToString};