1 files changed, 11 insertions, 0 deletions
diff --git a/third_party/rust/cose/build.rs b/third_party/rust/cose/build.rs
new file mode 100644
index 0000000000..8db7af5ad1
--- /dev/null
+++ b/third_party/rust/cose/build.rs
@@ -0,0 +1,11 @@
+use std::env;
+
+fn main() {
+    // Use NSS_LIB_DIR lazily. If it's not set and we can't find NSS in the path,
+    // the build will fail.
+    #[cfg(test)]
+    let lib_dir = env::var("NSS_LIB_DIR");
+    if let Ok(lib_dir) = env::var("NSS_LIB_DIR") {
+        println!("cargo:rustc-link-search={}", lib_dir);
+    }
+}