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meson: convert: add CI/CD + unit test
This adds CI/CD + unittest for 'meson convert'. Idea is simple: - have meson.build files - have "golden" Soong/Bazel files - run meson convert - compare with the goldens. Test command: - python3 run_unittests.py ConvertTests Regenerate goldens when needed: >> cd ~/meson/test cases/unit/hermetic/basic >> ~/meson/test cases/unit/hermetic/basic $ python3 ~/meson/meson.py convert test basic_soong >> ~/meson/test cases/unit/hermetic/basic $ python3 ~/meson/meson.py convert test basic_bazel
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‎.github/workflows/os_comp.yml‎

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update-alternatives --set i686-w64-mingw32-g++ /usr/bin/i686-w64-mingw32-g++-posix
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./run_tests.py $RUN_TESTS_ARGS -- $MESON_ARGS
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run-convert:
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name: 'Test build system conversion'
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runs-on: ubuntu-latest
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container:
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image: mesonbuild/ubuntu-rolling
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steps:
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- name: Checkout code
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uses: actions/checkout@v4
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- name: Run convert unit tests
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shell: bash
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run: |
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source /ci/env_vars.sh
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python3 run_unittests.py ConvertTests

‎test cases/unit/hermetic/basic/Android.bp‎

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/*
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* Copyright (C) 2025-2026 The Magma GPU Project
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* SPDX-License-Identifier: Apache-2.0
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*
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* Generated via:
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* https://github.com/mesonbuild/meson/tree/master/mesonbuild/convert
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*
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* Submit patches, do not hand-edit.
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*
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*/
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package {
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// See: http://go/android-license-faq
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default_applicable_licenses: ["test_license"],
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}
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license {
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name: "test_license",
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visibility: [":__subpackages__"],
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license_kinds: [
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"SPDX-license-identifier-Apache-2.0",
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],
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license_text: [
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"LICENSE",
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],
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}
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cc_library_static {
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name: "commonlib",
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vendor: true,
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host_supported: true,
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c_std: "c11",
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header_libs: [
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"inc",
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],
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srcs: [
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"common.c",
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],
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}
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cc_library_shared {
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name: "simplelib",
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vendor: true,
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host_supported: true,
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c_std: "c11",
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header_libs: [
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"inc",
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],
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srcs: [
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"main.c",
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],
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static_libs: [
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"commonlib",
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],
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}

‎test cases/unit/hermetic/basic/BUILD.bazel‎

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# Copyright (C) 2025-2026 The Magma GPU Project
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# SPDX-License-Identifier: Apache-2.0
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#
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# Generated via:
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# https://github.com/mesonbuild/meson/tree/master/mesonbuild/convert
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#
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# Submit patches, do not hand-edit.
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load("//bazel:meson_rules.bzl", "meson_cc_library")
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load("@rules_license//rules:license.bzl", "license")
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license(
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name = "test_license",
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license_kinds = [
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"@rules_license//licenses/spdx:Apache-2.0",
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],
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)
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package(
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default_applicable_licenses = ["//:test_license"],
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default_visibility = ["//visibility:public"],
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)
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meson_cc_library(
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name = "commonlib",
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srcs = [
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"common.c",
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],
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deps = [
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"//include:inc",
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],
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)
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meson_cc_library(
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name = "simplelib",
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srcs = [
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"main.c",
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],
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deps = [
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"//:commonlib",
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"//include:inc",
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],
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)

‎test cases/unit/hermetic/basic/LICENSE‎

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Dummy License Content

‎test cases/unit/hermetic/basic/common.c‎

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#include "common.h"
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#include <stdio.h>
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void common_func(void) { printf("common
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"); }

‎test cases/unit/hermetic/basic/hermetic_files/basic_bazel.toml‎

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# Copyright 2026 The Meson Development Team
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# SPDX-License-Identifier: Apache-2.0
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[project]
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project_name = 'basic_convert'
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build_system = 'bazel'
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[copyright]
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license_name = "test_license"
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licenses = ["Apache-2.0"]
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license_texts = ["LICENSE"]
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[[config]]
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config_name = 'test_config'
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[config.platforms]
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host_platforms = ["android_arm64"]
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build_platforms = ["android_arm64"]
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[config.static_options]

‎test cases/unit/hermetic/basic/hermetic_files/basic_soong.toml‎

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# Copyright 2026 The Meson Development Team
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# SPDX-License-Identifier: Apache-2.0
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[project]
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project_name = 'basic_convert'
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build_system = 'soong'
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[copyright]
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license_name = "test_license"
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licenses = ["Apache-2.0"]
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license_texts = ["LICENSE"]
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[[config]]
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config_name = 'test_config'
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[config.platforms]
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host_platforms = ["android_arm64"]
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build_platforms = ["android_arm64"]
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[config.static_options]

‎test cases/unit/hermetic/basic/hermetic_files/dependencies.toml‎

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# Copyright 2026 The Meson Development Team
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# SPDX-License-Identifier: Apache-2.0
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[shared_libraries]
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[static_libraries]
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[header_libraries]
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[programs]
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python3 = { version = "3.11" }
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cp = { version = "1.0" }

‎test cases/unit/hermetic/basic/hermetic_files/platforms.toml‎

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# Copyright 2026 The Meson Development Team
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# SPDX-License-Identifier: Apache-2.0
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[[wrap]]
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name = "android_ndk"
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source_url = "https://dl.google.com/android/repository/android-ndk-r29-linux.zip"
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source_filename = "android-ndk-r29.zip"
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source_hash = "4abbbcdc842f3d4879206e9695d52709603e52dd68d3c1fff04b3b5e7a308ecf"
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[[toolchain]]
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name = "android_ndk_toolchain_aarch64"
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wrap_name = "android_ndk"
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ar = "toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-ar"
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cc = "toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android35-clang"
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cpp = "toolchains/llvm/prebuilt/linux-x86_64/bin/aarch64-linux-android35-clang++"
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strip = "toolchains/llvm/prebuilt/linux-x86_64/bin/llvm-strip"
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[[platform]]
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name = "android_arm64"
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[platform.machine_info]
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cpu_family = "aarch64"
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cpu = "aarch64"
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system = "android"
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endian = "little"
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[platform.c]
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compiler_id = "clang"
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linker_id = "ld.lld"
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version = "21.0.0"
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toolchain = "android_ndk_toolchain_aarch64"
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sysroot = { wrap_name = "android_ndk", path = "toolchains/llvm/prebuilt/linux-x86_64/sysroot" }
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[platform.cpp]
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compiler_id = "clang"
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linker_id = "ld.lld"
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version = "21.0.0"
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toolchain = "android_ndk_toolchain_aarch64"
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sysroot = { wrap_name = "android_ndk", path = "toolchains/llvm/prebuilt/linux-x86_64/sysroot" }

‎test cases/unit/hermetic/basic/include/Android.bp‎

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/*
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* Copyright (C) 2025-2026 The Magma GPU Project
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* SPDX-License-Identifier: Apache-2.0
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*
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* Generated via:
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* https://github.com/mesonbuild/meson/tree/master/mesonbuild/convert
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*
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* Submit patches, do not hand-edit.
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*
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*/
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package {
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// See: http://go/android-license-faq
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default_applicable_licenses: ["test_license"],
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}
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cc_library_headers {
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name: "inc",
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vendor: true,
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host_supported: true,
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export_include_dirs: [
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".",
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],
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}

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