No matching toolchain for ninja_toolchain on arm64

[tkekan]

Env:
I'm running OL8 docker on Apple Silicon and trying to build a C++ repo on it. There is a third-party which is being built using below cmake

While using the load("@rules_foreign_cc//foreign_cc:defs.bzl", "cmake") I get below errors . Looking at the docs ideally it should be work right ?

WARNING: Build option --toolchain_resolution_debug has changed, discarding analysis cache (this can be expensive, see https://bazel.build/advanced/performance/iteration-speed). INFO: ToolchainResolution: Performing resolution of @@bazel_tools//tools/cpp:toolchain_type for target platform @@platforms//host:host ToolchainResolution: Toolchain @@bazel_tools~cc_configure_extension~local_config_cc//:cc-compiler-aarch64 is compatible with target plaform, searching for execution platforms: ToolchainResolution: Compatible execution platform @@platforms//host:host ToolchainResolution: All execution platforms have been assigned a @@bazel_tools//tools/cpp:toolchain_type toolchain, stopping ToolchainResolution: Recap of selected @@bazel_tools//tools/cpp:toolchain_type toolchains for target platform @@platforms//host:host: ToolchainResolution: Selected @@bazel_tools~cc_configure_extension~local_config_cc//:cc-compiler-aarch64 to run on execution platform @@platforms//host:host ERROR: /root/dpp-workspace/third-party/rules_libevent/BUILD:26:6: While resolving toolchains for target //third-party/rules_libevent:event (47d3177): No matching toolchains found for types @@rules_foreign_cc~//toolchains:ninja_toolchain. To debug, rerun with --toolchain_resolution_debug='@@rules_foreign_cc~//toolchains:ninja_toolchain'

[chrisseto]

This might be a duplicate of #1035?

It seems the underlying issue is two fold. 1) rules_foreign_cc eagerly establishes toolchains and 2) ninja does not provide a darwin arm64 build and only recently started providing a build for arm64.

I was able to fix a similar failure on linux by updating to the latest version (0.10.1 -> 0.12.0). this comment suggests trying to have bazel build ninja for you but I ended up getting errors from bazel because a toolchain definition required a toolchain to build.