swift

358e294e - [cxx-interop] Suppress Microsoft STL compiler compatibility checks

[cxx-interop] Suppress Microsoft STL compiler compatibility checks Microsoft STL only officially supports very recent versions of Clang, while the Clang version that is embedded in Swift might be lagging behind. This triggers incompatibility errors coming from STL: ``` C:\Program Files\Microsoft Visual Studio\2022\Preview\VC\Tools\MSVC\14.43.34808\include\yvals_core.h:927:1: error: static assertion failed: error STL1000: Unexpected compiler version, expected Clang 18.0.0 or newer. _EMIT_STL_ERROR(STL1000, "Unexpected compiler version, expected Clang 18.0.0 or newer."); ``` There is no obvious way for the user to solve these, apart from downgrading the MSVC version. Let's pass the `_ALLOW_COMPILER_AND_STL_VERSION_MISMATCH` macro to Clang to suppress these errors. rdar://145883764 / resolves https://github.com/swiftlang/swift/issues/79709