# Copyright 2024 The BoringSSL Authors
#
# 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
#
#     https://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.

# This is a bazelrc file, documented in https://bazel.build/run/bazelrc and
# specifies default flags when BoringSSL is the root project. It has no effect
# on downstream projects, which define their own toolchains and configs.

# See https://bazel.build/run/bazelrc#enable_platform_specific_config.
# This expands to --config=osname which, in turn, expands to the options
# specified below.
build --enable_platform_specific_config

# Enable additional checks.
build --features=layering_check
build --features=parse_headers

# Bazel has no abstractions for setting C++ versions and expects the root
# project to use the compiler-specific options for their toolchains. (Bazel only
# wants the root to set the C++ version for the sake of projects like Abseil
# whose ABI depends on the C++ version.)
build:linux --cxxopt=-std=c++17
build:macos --cxxopt=-std=c++17
build:windows --cxxopt=/std:c++17

# Our own builds should strictly build without warnings, but we don't add those
# in targets like other flags because we can't assume all users will have clean
# builds too.
build:linux --cxxopt=-Werror
build:macos --cxxopt=-Werror

# Google Benchmark needs this flag enabled to not have warnings (which are
# turned into errors above) in its Mutex code.
#
# Can remove when https://github.com/google/benchmark/issues/2263 is resolved
# and our version of Google Benchmark is updated past the fix.
#
# Only enabled on macOS, as Linux defaults to GCC which doesn't support this.
build:macos --cxxopt=-DHAVE_THREAD_SAFETY_ATTRIBUTES=1

# Without setting a minimum macOS version, std::optional does not work.
build:macos --cxxopt=-mmacosx-version-min=10.15

# Without /Zc:__cplusplus, MSVC does not define the right value for
# __cplusplus. See https://devblogs.microsoft.com/cppblog/msvc-now-correctly-reports-__cplusplus/
build:windows --cxxopt=/Zc:__cplusplus

# https://bazel.build/configure/best-practices#bazelrc-file
try-import %workspace%/user.bazelrc