1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/rust/cssparser/build.rs b/third_party/rust/cssparser/build.rs
new file mode 100644
index 0000000000..07a72ffe1c
--- /dev/null
+++ b/third_party/rust/cssparser/build.rs
@@ -0,0 +1,46 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#[cfg(feature = "dummy_match_byte")]
+mod codegen {
+    pub fn main() {}
+}
+
+#[cfg(not(feature = "dummy_match_byte"))]
+#[path = "build/match_byte.rs"]
+mod match_byte;
+
+#[cfg(not(feature = "dummy_match_byte"))]
+mod codegen {
+    use std::env;
+    use std::path::Path;
+    use std::thread::Builder;
+
+    pub fn main() {
+        let manifest_dir = env::var("CARGO_MANIFEST_DIR").unwrap();
+
+        let input = Path::new(&manifest_dir).join("src/tokenizer.rs");
+        let output = Path::new(&env::var("OUT_DIR").unwrap()).join("tokenizer.rs");
+        println!("cargo:rerun-if-changed={}", input.display());
+
+        // We have stack overflows on Servo's CI.
+        let handle = Builder::new()
+            .stack_size(128 * 1024 * 1024)
+            .spawn(move || {
+                crate::match_byte::expand(&input, &output);
+            })
+            .unwrap();
+
+        handle.join().unwrap();
+    }
+}
+
+fn main() {
+    if std::mem::size_of::<Option<bool>>() == 1 {
+        // https://github.com/rust-lang/rust/pull/45225
+        println!("cargo:rustc-cfg=rustc_has_pr45225")
+    }
+
+    codegen::main();
+}