From 456629c258e99c58839b55d1232cd38850266fdb Mon Sep 17 00:00:00 2001
From: Fabian Meumertzheim <fabian@meumertzhe.im>
Date: Fri, 17 Oct 2025 08:44:27 +0200
Subject: [PATCH] Mark extension as reproducible

---
 MODULE.bazel                  | 1 +
 toolchain/extensions/llvm.bzl | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/MODULE.bazel b/MODULE.bazel
index 92b320fe..5c4657ee 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -19,6 +19,7 @@ module(
     compatibility_level = 0,
 )
 
+bazel_dep(name = "bazel_features", version = "1.36.0")
 bazel_dep(name = "bazel_skylib", version = "1.5.0")
 bazel_dep(name = "rules_cc", version = "0.2.2")
 bazel_dep(name = "platforms", version = "0.0.8")
diff --git a/toolchain/extensions/llvm.bzl b/toolchain/extensions/llvm.bzl
index 28148719..1cb01ec0 100644
--- a/toolchain/extensions/llvm.bzl
+++ b/toolchain/extensions/llvm.bzl
@@ -1,5 +1,6 @@
 """LLVM extension for use with bzlmod"""
 
+load("@bazel_features//:features.bzl", "bazel_features")
 load("@toolchains_llvm//toolchain:rules.bzl", "llvm_toolchain")
 load(
     "@toolchains_llvm//toolchain/internal:repo.bzl",
@@ -84,6 +85,11 @@ def _llvm_impl_(module_ctx):
             if root.name not in toolchain_names:
                 fail("sysroot '%s' does not have a corresponding toolchain" % root.name)
 
+    if bazel_features.external_deps.extension_metadata_has_reproducible:
+        return module_ctx.extension_metadata(reproducible = True)
+    else:
+        return None
+
 _attrs = {
     "name": attr.string(doc = """\
         Base name for the generated repositories, allowing more than one LLVM toolchain to be registered.