CMake: allow to specify a SDK when building a triple for Embedded Swift #84817
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edymtt
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Oct 10, 2025
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To achieve thig, add a new cache variable `SWIFT_EMBEDDED_STDLIB_SDKS_FOR_TARGET_TRIPLES` to be set like in the following examples. ``` -DSWIFT_EMBEDDED_STDLIB_SDKS_FOR_TARGET_TRIPLES=aarch64-vendor-os@/usr/local/aarch64-vendor-os-sdk;aaarch-vendor-anotheros@/opt/aarch64-vendor-anotheros-sdk ``` We chose to use another setting instead of e.g. folding this into `SWIFT_EMBEDDED_STDLIB_EXTRA_TARGET_TRIPLES` so it is clear this is opt in and it does not regress existing configurations that set the SDK directly (like it's the case for the WASM stdlib). Addresses rdar://162368529
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To achieve this, add a new cache variable
SWIFT_EMBEDDED_STDLIB_SDKS_FOR_TARGET_TRIPLESto be set like in thefollowing examples.
We chose to use another setting instead of e.g. folding this into
SWIFT_EMBEDDED_STDLIB_EXTRA_TARGET_TRIPLESso it is clear this is optin and it does not regress existing configurations that set the SDK
directly (like it's the case for the WASM stdlib).
Addresses rdar://162368529