Add HarmonyOS support#51470
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Delegates to the SDK's own ohos.toolchain.cmake, located via the OHOS_SDK_ROOT environment variable. Maps vcpkg architecture and CRT linkage settings to OHOS equivalents.
Shared library linkage for all three architectures supported by the OpenHarmony SDK: arm64-v8a, armeabi-v7a, and x86_64. The environment variable OHOS_SDK_ROOT is passed through, because on Windows, vcpkg builds in a sanitized environment that strips most variables. Without VCPKG_ENV_PASSTHROUGH_UNTRACKED the OHOS toolchain cannot find the SDK, failing at compiler detection. The triplets only build release variants, because without VCPKG_BUILD_TYPE, vcpkg generates both debug and release cmake config files. The debug libraries are not needed for cross-compilation and their presence causes CMake errors when the debug/lib/ directory is missing from the install prefix.
Register VCPKG_TARGET_IS_OHOS and map OHOS to the appropriate system libraries (dl, m, pthread, c++, rt, gcc). OHOS uses musl libc with LLVM's libc++, not libstdc++.
This was referenced Apr 30, 2026
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I'm going to put comments about this over in the tool repo one: microsoft/vcpkg-tool#2004 Drafting this because it would be merged in the context of that and should not be merged as an 'ordinary registry maintenance' change. |
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Fixes: #51302
This adds community triplets for HarmonyOS / OpenHarmony and the necessary toolchain file.