Build rustdoc on-demand.

Rustdoc is no longer compiled in every stage, alongside rustc, instead
it is only compiled when requested, and generally only for the last
stage.

2 files changed, 24 insertions, 0 deletions

diff --git a/src/tools/rustdoc/Cargo.toml b/src/tools/rustdoc/Cargo.toml
new file mode 100644
index 00000000000..b6edb76d7f9
--- /dev/null
+++ b/src/tools/rustdoc/Cargo.toml
@@ -0,0 +1,11 @@
+[package]
+name = "rustdoc-tool"
+version = "0.0.0"
+authors = ["The Rust Project Developers"]
+
+[[bin]]
+name = "rustdoc"
+path = "main.rs"
+
+[dependencies]
+rustdoc = { path = "../../librustdoc" }
diff --git a/src/tools/rustdoc/main.rs b/src/tools/rustdoc/main.rs
new file mode 100644
index 00000000000..9c37e249ba8
--- /dev/null
+++ b/src/tools/rustdoc/main.rs
@@ -0,0 +1,13 @@
+// Copyright 2017 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+extern crate rustdoc;
+
+fn main() { rustdoc::main() }