codex/patches/v8_relative_prebuilt_binding_path.patch

diff --git a/build.rs b/build.rs
--- a/build.rs
+++ b/build.rs
@@ -578,6 +578,16 @@
 }
 
 fn static_lib_dir() -> PathBuf {
+  if let Some(out_dir) = env::var_os("OUT_DIR") {
+    let out_dir = PathBuf::from(out_dir);
+    if out_dir
+      .components()
+      .any(|component| component.as_os_str() == "bazel-out")
+    {
+      return out_dir;
+    }
+  }
+
   build_dir().join("gn_out").join("obj")
 }
 
@@ -591,6 +601,13 @@
   );
   let out_dir_abs = cwd.join(out_dir);
 
+  if out_dir_abs
+    .components()
+    .any(|component| component.as_os_str() == "bazel-out")
+  {
+    return out_dir_abs.parent().unwrap().to_path_buf();
+  }
+
   // This would be `target/debug` or `target/release`
   out_dir_abs
     .parent()
@@ -861,9 +878,13 @@
     download_file(&url, &src_binding_path);
   }
 
+  // `src/binding.rs` includes this path directly, so keep it relative to that
+  // source file instead of the build script's synthetic runfiles directory.
+  let include_path = Path::new("..").join("gen").join(name);
+
   println!(
     "cargo:rustc-env=RUSTY_V8_SRC_BINDING_PATH={}",
-    src_binding_path.display()
+    include_path.display()
   );
 }