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bazel/rules_cc/df61b8c4f5d2760f9a01bd3d9473167373b42e39
commit
df61b8c4f5d2760f9a01bd3d9473167373b42e39
[log]
author
Googler <noreply@google.com>
Wed Aug 05 06:17:32 2026 -0700
committer
Copybara-Service <copybara-worker@google.com>
Wed Aug 05 06:17:54 2026 -0700
tree
63d8bd020288f37bc9fbfcdc9a48c7ca6be63be3
parent
14686ad81e1cd50c8d2bf2ae3e2d45eb16339943 [diff]
Update mock cc_toolchain_config in rules_cc to support proto features.

This brings the mock toolchain to parity with what the old Java mock toolchain supported (see comments on unknown commit for more info).

Register proto_force_lite_runtime, proto_disable_services, and proto_one_output_per_message as individual features in _feature_name_to_feature map, and deduplicate features in cc_toolchain_config to prevent analysis errors when enabled via test_features.

BEGIN_PUBLIC
Update mock C++ toolchain config in rules_cc to register proto features and deduplicate feature lists.
END_PUBLIC

PiperOrigin-RevId: 959618289
Change-Id: Ia21d4dca53a88fe13387b816924d4dc828b105ba
1 file changed
tree: 63d8bd020288f37bc9fbfcdc9a48c7ca6be63be3
  1. .bazelci/
  2. .bcr/
  3. .github/
  4. cc/
  5. docs/
  6. examples/
  7. tests/
  8. .bazelignore
  9. .bazelrc
  10. .gitignore
  11. AUTHORS
  12. BUILD
  13. CODEOWNERS
  14. CONTRIBUTING.md
  15. googletest.patch
  16. ISSUE_TEMPLATE.md
  17. LICENSE
  18. local_bazel.bzl
  19. MODULE.bazel
  20. README.md
  21. WORKSPACE
  22. WORKSPACE.bzlmod
README.md

C++ rules for Bazel

  • Postsubmit Build status

This repository contains C, C++, and Objective-C language support for the Bazel build system.

For this module's main reference, see the Bazel documentation.

Get Started

Install Bazel

Follow the official instructions to Install Bazel.

Add rules_cc to your MODULE.bazel

Add the latest release to your MODULE.bazel project file.

Declare a build target

In a BUILD.bazel file, import and use the rules:

load("@rules_cc//cc:cc_binary.bzl", "cc_binary")

cc_binary(
    name = "hello_world",
    srcs = ["hello_world.cc"],
)

Build and run your project

Build and run your C/C++ binary with one command:

$ bazel run hello_world

To build the project without running the binary, use Bazel's build subcommand:

$ bazel build hello_world

Toolchains

Default autoconfigured toolchain

rules_cc includes an auto-configured toolchain that uses the local compiler installed on the host machine.

You can disable the autoconfigured C/C++ toolchain by adding the following Bazel flag to your project's .bazelrc file:

--repo_env=BAZEL_DO_NOT_DETECT_CPP_TOOLCHAIN=1

Hermetic toolchains

Configuring a hermetic toolchain makes your build more deterministic. rules_cc itself does not yet offer a hermetic toolchain distribution. Other community owned and maintained projects offer hermetic C/C++ toolchains:

Contributing

Bazel and rules_cc are the work of many contributors. We appreciate your help!

To contribute, please read the contribution guidelines: CONTRIBUTING.md.

Note that the rules_cc use the GitHub issue tracker for bug reports and feature requests only. For asking questions see: