From 98adb2f445aa68e38a0ce662f7ec1b9108d4692d Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Thu, 30 Jun 2016 09:01:27 -0700
Subject: [PATCH] rustbuild: Clean out tmp directory on `make clean`

Right now we generate error index information into this directory, but it's
never cleaned out. This means that if a build *bounces* because of something in
this directory it'll continue to cause all future builds to fail because the
relevant files are never removed.
---
 src/bootstrap/build/clean.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/bootstrap/build/clean.rs b/src/bootstrap/build/clean.rs
index 1d407c9413235..1a40f8ecf3f30 100644
--- a/src/bootstrap/build/clean.rs
+++ b/src/bootstrap/build/clean.rs
@@ -21,6 +21,8 @@ use std::path::Path;
 use build::Build;
 
 pub fn clean(build: &Build) {
+    rm_rf(build, &build.out.join("tmp"));
+
     for host in build.config.host.iter() {
 
         let out = build.out.join(host);