How to build Mozc with Bazel on an Apple Silicon machine?

[k-khr]

I cannot build Mozc with Bazel on my MacBook Air (Apple M2, 2022).

I followed this instruction (https://github.com/google/mozc/blob/master/docs/build_mozc_in_osx.md#bazel-build) and tried to build Mozc with Bazel, but bazel build command fails with this error.

$ bazel build package --config macos -c opt --subcommands --verbose_failures
ERROR: /Users/kihara/src/mozc/src/base/BUILD.bazel:1288:18: in objc_library rule //base:mac_util: Expected action_config for 'objc++-compile' to be configured
ERROR: /Users/kihara/src/mozc/src/base/BUILD.bazel:1288:18: in objc_library rule //base:mac_util:
Traceback (most recent call last):
	File "/virtual_builtins_bzl/common/objc/objc_library.bzl", line 55, column 82, in _objc_library_impl
	File "/virtual_builtins_bzl/common/objc/compilation_support.bzl", line 312, column 50, in _register_compile_and_archive_actions
	File "/virtual_builtins_bzl/common/objc/compilation_support.bzl", line 389, column 66, in _cc_compile_and_link
	File "/virtual_builtins_bzl/common/objc/compilation_support.bzl", line 182, column 29, in _compile
Error in compile: Expected action_config for 'objc++-compile' to be configured
ERROR: /Users/kihara/src/mozc/src/base/BUILD.bazel:1288:18: Analysis of target '//base:mac_util' failed
INFO: Repository zip_code_ken_all instantiated at:
  /Users/kihara/src/mozc/src/WORKSPACE.bazel:189:13: in <toplevel>
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_kihara/48bc01e61b40c7bec5e585474a3890f9/external/bazel_tools/tools/build_defs/repo/http.bzl:372:31: in <toplevel>
INFO: Repository zip_code_jigyosyo instantiated at:
  /Users/kihara/src/mozc/src/WORKSPACE.bazel:195:13: in <toplevel>
Repository rule http_archive defined at:
  /private/var/tmp/_bazel_kihara/48bc01e61b40c7bec5e585474a3890f9/external/bazel_tools/tools/build_defs/repo/http.bzl:372:31: in <toplevel>
ERROR: Analysis of target '//:package' failed; build aborted:
INFO: Elapsed time: 1.966s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (146 packages loaded, 4245 targets configured)
    Fetching https://www.post.japanpost.jp/zipcode/dl/kogaki/zip/ken_all.zip; 97.4 KiB (99,788B)
    Fetching https://www.post.japanpost.jp/zipcode/dl/jigyosyo/zip/jigyosyo.zip; 95.9 KiB (98,221B)

According to this comment #502 (comment), it seems to be successful with GYP and extra environmental variables on Apple M1. Does Bazel require some special settings, as in case of GYP?

Environment

$ sw_vers
ProductName:		macOS
ProductVersion:		13.2
BuildVersion:		22D49

$ xcrun --version
xcrun version 61.

$ xcrun -sdk macosx --show-sdk-version
13.1

[hiroyuki-komatsu]

Hi k-khr,

Bazel build works on Apple Silicon machines. It works at least on my M1 macOS environment.
Looking at the error messages, I guess the issue is the settings of Xcode or Bazel.

My outputs of sw_vers and xcrun are exactly same with you.

$ xcodebuild -version
Xcode 14.2
Build version 14C18

$ bazel --version
bazel 6.0.0

[k-khr]

Thank for the reply!
I'm sorry that I only installed XCode Command Line Tools, not XCode. After installing and clean cache by bazel clean --expunge, bazel build command succeeded.