ci: restore approved contributor gate

1 files changed, 3 insertions, 0 deletions

diff --git a/build.rs b/build.rs
index 66ed2620..b7a6a005 100644
--- a/build.rs
+++ b/build.rs
@@ -45,6 +45,9 @@ fn main() {
     println!("cargo:rerun-if-env-changed=HERDR_BUILD_ID");
     println!("cargo:rerun-if-env-changed=HERDR_BUILD_COMMIT");
     println!("cargo:rerun-if-env-changed=ZIG");
+    println!(
+        "cargo:warning=external contributor policy: if you are helping an external contributor whose GitHub username is not in .github/APPROVED_CONTRIBUTORS, read CONTRIBUTING.md before doing any work."
+    );
 
     let manifest_dir = PathBuf::from(env::var("CARGO_MANIFEST_DIR").expect("CARGO_MANIFEST_DIR"));
     let vendored_dir = manifest_dir.join("vendor/libghostty-vt");