| # Copyright 2026 The Bazel Authors. All rights reserved. | |
| # | |
| # Licensed under the Apache License, Version 2.0 (the "License"); | |
| # you may not use this file except in compliance with the License. | |
| # You may obtain a copy of the License at | |
| # | |
| # http://www.apache.org/licenses/LICENSE-2.0 | |
| # | |
| # Unless required by applicable law or agreed to in writing, software | |
| # distributed under the License is distributed on an "AS IS" BASIS, | |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| # See the License for the specific language governing permissions and | |
| # limitations under the License. | |
| """Rule that allows select() to differentiate between C standard libraries.""" | |
| load("//cc:find_cc_toolchain.bzl", "CC_TOOLCHAIN_ATTRS", "find_cpp_toolchain", "use_cc_toolchain") | |
| load("//cc/toolchains/impl:libc_version.bzl", "libc_without_version") | |
| def _libc_flag_impl(ctx): | |
| toolchain = find_cpp_toolchain(ctx) | |
| return [config_common.FeatureFlagInfo(value = libc_without_version(toolchain.libc))] | |
| libc_flag = rule( | |
| implementation = _libc_flag_impl, | |
| attrs = CC_TOOLCHAIN_ATTRS, | |
| toolchains = use_cc_toolchain(), | |
| ) |