1 files changed, 32 insertions, 0 deletions
diff --git a/mozglue/static/rust/build.rs b/mozglue/static/rust/build.rs
new file mode 100644
index 0000000000..4df483da0a
--- /dev/null
+++ b/mozglue/static/rust/build.rs
@@ -0,0 +1,32 @@
+/* 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/. */
+
+use rustc_version::{version, Version};
+
+fn main() {
+    let mut build = cc::Build::new();
+    build.cpp(true);
+    // For js-confdefs.h, see wrappers.cpp.
+    build.include(mozbuild::TOPOBJDIR.join("js").join("src"));
+    build.include(mozbuild::TOPOBJDIR.join("dist").join("include"));
+    build.define("MOZ_HAS_MOZGLUE", None);
+    build.file("wrappers.cpp");
+    build.compile("wrappers");
+    println!("cargo:rerun-if-changed=wrappers.cpp");
+
+    let ver = version().unwrap();
+    let max_oom_hook_version = Version::parse("1.71.0-alpha").unwrap();
+    // The new alloc error panic feature was temporarily reverted. We kept the
+    // code in tree, but the version here is such that it's effectively never used.
+    let max_alloc_error_panic_version = Version::parse("1.71.0-alpha").unwrap();
+
+    if ver < max_oom_hook_version {
+        println!("cargo:rustc-cfg=feature=\"oom_with_hook\"");
+    } else if ver < max_alloc_error_panic_version {
+        println!("cargo:rustc-cfg=feature=\"oom_with_alloc_error_panic\"");
+    } else if std::env::var("MOZ_AUTOMATION").is_ok() {
+        panic!("Builds on automation must use a version of rust for which we know how to hook OOM: want < {}, have {}",
+               max_alloc_error_panic_version, ver);
+    }
+}