74 lines
2.0 KiB
Python
74 lines
2.0 KiB
Python
# Copyright The OpenTelemetry Authors
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# SPDX-License-Identifier: Apache-2.0
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load("@bazel_skylib//rules:common_settings.bzl", "bool_flag", "string_flag")
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package(default_visibility = ["//visibility:public"])
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bool_flag(
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name = "with_abseil",
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build_setting_default = False,
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)
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CPP_STDLIBS = [
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"none",
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"best",
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"2014",
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"2017",
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"2020",
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"2023",
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]
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string_flag(
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name = "with_cxx_stdlib",
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build_setting_default = "best",
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values = CPP_STDLIBS,
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)
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cc_library(
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name = "api",
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hdrs = glob(["include/**/*.h"]),
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defines = select({
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":with_external_abseil": ["HAVE_ABSEIL"],
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"//conditions:default": [],
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}) + select({
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":set_cxx_stdlib_none": [],
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### automatic selection
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":set_cxx_stdlib_best": ["OPENTELEMETRY_STL_VERSION=(__cplusplus/100)"],
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# See https://learn.microsoft.com/en-us/cpp/build/reference/zc-cplusplus
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":set_cxx_stdlib_best_and_msvc": ["OPENTELEMETRY_STL_VERSION=(_MSVC_LANG/100)"],
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### manual selection
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":set_cxx_stdlib_2014": ["OPENTELEMETRY_STL_VERSION=2014"],
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":set_cxx_stdlib_2017": ["OPENTELEMETRY_STL_VERSION=2017"],
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":set_cxx_stdlib_2020": ["OPENTELEMETRY_STL_VERSION=2020"],
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":set_cxx_stdlib_2023": ["OPENTELEMETRY_STL_VERSION=2023"],
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"//conditions:default": [],
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}),
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strip_include_prefix = "include",
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tags = ["api"],
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deps = select({
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":with_external_abseil": [
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"@com_google_absl//absl/base",
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"@com_google_absl//absl/strings",
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"@com_google_absl//absl/types:variant",
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],
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"//conditions:default": [],
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}),
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)
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config_setting(
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name = "with_external_abseil",
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flag_values = {":with_abseil": "true"},
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)
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[config_setting(
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name = "set_cxx_stdlib_%s" % v,
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flag_values = {":with_cxx_stdlib": v},
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) for v in CPP_STDLIBS]
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config_setting(
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name = "set_cxx_stdlib_best_and_msvc",
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constraint_values = ["@bazel_tools//tools/cpp:msvc"],
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flag_values = {":with_cxx_stdlib": "best"},
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)
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