From 27a2bb1582ad2fe11ab7b14f2ac75e6f6f223c84 Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Thu, 2 Nov 2017 15:01:08 +0100
Subject: [PATCH 1/2] Make script enable the "style/servo" Cargo feature
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This enables it to be compiled without libservo:
```
cargo build --manifest-path components/script/Cargo.toml
```

… and then to be added to http://perf.rust-lang.org/
---
 components/script/Cargo.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index 299a25f88f6..c87f0085687 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -85,7 +85,7 @@ servo_geometry = {path = "../geometry" }
 servo_rand = {path = "../rand"}
 servo_url = {path = "../url"}
 smallvec = "0.4"
-style = {path = "../style"}
+style = {path = "../style", features = ["servo"]}
 style_traits = {path = "../style_traits"}
 swapper = "0.1"
 time = "0.1.12"

From a5d9d0b32d28be603d14dcfc7ea3e5fdb87e25df Mon Sep 17 00:00:00 2001
From: Simon Sapin <simon.sapin@exyr.org>
Date: Thu, 2 Nov 2017 15:08:04 +0100
Subject: [PATCH 2/2] Make the unrooted_must_root conditional on a default
 Cargo feature.

Only http://perf.rust-lang.org/ will disable it,
in order to be less subject to changes to rustc internal APIs.
---
 components/script/Cargo.toml         | 2 ++
 components/script/lib.rs             | 1 +
 components/script_plugins/Cargo.toml | 3 +++
 components/script_plugins/lib.rs     | 8 ++++++++
 4 files changed, 14 insertions(+)

diff --git a/components/script/Cargo.toml b/components/script/Cargo.toml
index c87f0085687..9523dc628c2 100644
--- a/components/script/Cargo.toml
+++ b/components/script/Cargo.toml
@@ -14,6 +14,8 @@ path = "lib.rs"
 [features]
 debugmozjs = ['js/debugmozjs']
 unstable = ["servo_allocator/unstable"]
+unrooted_must_root_lint = ["script_plugins/unrooted_must_root_lint"]
+default = ["unrooted_must_root_lint"]
 
 [build-dependencies]
 cmake = "0.1"
diff --git a/components/script/lib.rs b/components/script/lib.rs
index f56e2c3dcaa..719275dc3ec 100644
--- a/components/script/lib.rs
+++ b/components/script/lib.rs
@@ -16,6 +16,7 @@
 #![doc = "The script crate contains all matters DOM."]
 
 #![plugin(script_plugins)]
+#![cfg_attr(not(feature = "unrooted_must_root_lint"), allow(unknown_lints))]
 
 extern crate angle;
 extern crate app_units;
diff --git a/components/script_plugins/Cargo.toml b/components/script_plugins/Cargo.toml
index 6b200e3ef0f..c6bc3eb2250 100644
--- a/components/script_plugins/Cargo.toml
+++ b/components/script_plugins/Cargo.toml
@@ -8,3 +8,6 @@ publish = false
 [lib]
 path = "lib.rs"
 plugin = true
+
+[features]
+unrooted_must_root_lint = []
diff --git a/components/script_plugins/lib.rs b/components/script_plugins/lib.rs
index a929f394c21..3f256fdf11c 100644
--- a/components/script_plugins/lib.rs
+++ b/components/script_plugins/lib.rs
@@ -14,27 +14,35 @@
 //!                       Use this for structs that correspond to a DOM type
 
 
+
 #![deny(unsafe_code)]
 #![feature(macro_vis_matcher)]
 #![feature(plugin)]
 #![feature(plugin_registrar)]
 #![feature(rustc_private)]
 
+#[cfg(feature = "unrooted_must_root_lint")]
 #[macro_use]
 extern crate rustc;
+
 extern crate rustc_plugin;
 extern crate syntax;
 
 use rustc_plugin::Registry;
 use syntax::feature_gate::AttributeType::Whitelisted;
 
+#[cfg(feature = "unrooted_must_root_lint")]
 mod unrooted_must_root;
+
 /// Utilities for writing plugins
+#[cfg(feature = "unrooted_must_root_lint")]
 mod utils;
 
 #[plugin_registrar]
 pub fn plugin_registrar(reg: &mut Registry) {
+    #[cfg(feature = "unrooted_must_root_lint")]
     reg.register_late_lint_pass(Box::new(unrooted_must_root::UnrootedPass::new()));
+
     reg.register_attribute("allow_unrooted_interior".to_string(), Whitelisted);
     reg.register_attribute("must_root".to_string(), Whitelisted);
 }