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authorbors <bors@rust-lang.org>2017-08-30 02:56:48 +0000
committerbors <bors@rust-lang.org>2017-08-30 02:56:48 +0000
commitc2f9cc4a3bf8917e6cd9f31e3a2e9baa8c15e8f1 (patch)
tree3de1314b8513f11faf697096c92e5906d56f3b75
parent09ea6b7a82d16e490ad98faed0f746cf19589108 (diff)
parent1d70b66fe49660006f35a699ef5733e97c0786f0 (diff)
downloadrust-c2f9cc4a3bf8917e6cd9f31e3a2e9baa8c15e8f1.tar.gz
rust-c2f9cc4a3bf8917e6cd9f31e3a2e9baa8c15e8f1.zip
Auto merge of #44143 - alexcrichton:faster-bootstrap, r=Mark-Simulacrum
rustbuild: Avoid some extraneous rustc compiles on cross builds

This tweaks a few locations here and there to avoid compiling rustc too many times on our cross-builders on CI.

Closes https://github.com/rust-lang/rust/issues/44132
-rw-r--r--src/bootstrap/doc.rs5
-rw-r--r--src/bootstrap/lib.rs2
2 files changed, 1 insertions, 6 deletions
diff --git a/src/bootstrap/doc.rs b/src/bootstrap/doc.rs
index 86f5346bea1..b9a52a66793 100644
--- a/src/bootstrap/doc.rs
+++ b/src/bootstrap/doc.rs
@@ -669,11 +669,6 @@ impl Step for ErrorIndex {
         let build = builder.build;
         let target = self.target;
 
-        builder.ensure(compile::Rustc {
-            compiler: builder.compiler(0, build.build),
-            target,
-        });
-
         println!("Documenting error index ({})", target);
         let out = build.doc_out(target);
         t!(fs::create_dir_all(&out));
diff --git a/src/bootstrap/lib.rs b/src/bootstrap/lib.rs
index 84a9e56b644..f21b382619d 100644
--- a/src/bootstrap/lib.rs
+++ b/src/bootstrap/lib.rs
@@ -717,7 +717,7 @@ impl Build {
     fn force_use_stage1(&self, compiler: Compiler, target: Interned<String>) -> bool {
         !self.config.full_bootstrap &&
             compiler.stage >= 2 &&
-            self.hosts.iter().any(|h| *h == target)
+            (self.hosts.iter().any(|h| *h == target) || target == self.build)
     }
 
     /// Returns the directory that OpenSSL artifacts are compiled into if