[omochi@omochi-iMacPro SwiftDeclWeb]$ swift build --triple wasm32-unknown-wasi --sdk $TOOLCHAIN_PATH/share/wasi-sysroot wasm-ld: error: /Users/omochi/swift/swift-wasm-DEVELOPMENT-SNAPSHOT-2020-10-05-a/usr/lib/swift_static/wasi/libFoundation.a(NSTimeZone.swift.obj): undefined symbol: CFHash wasm-ld: error: /Users/omochi/swift/swift-wasm-DEVELOPMENT-SNAPSHOT-2020-10-05-a/usr/lib/swift_static/wasi/libFoundation.a(NSDate.swift.obj): undefined symbol: _CFDeinit wasm-ld: error: /Users/omochi/swift/swift-wasm-DEVELOPMENT-SNAPSHOT-2020-10-05-a/usr/lib/swift_static/wasi/libFoundation.a(NSDate.swift.obj): undefined symbol: CFDateGetTypeID wasm-ld: error: /Users/omochi/swift/swift-wasm-DEVELOPMENT-SNAPSHOT-2020-10-05-a/usr/lib/swift_static/wasi/libFoundation.a(NSDate.swift.obj): undefined symbol: CFDateGetTypeID wasm-ld: error: /Users/omochi/swift/swift-wasm-DEVELOPMENT-SNAPSHOT-2020-10-05-a/usr/lib/swift_static/wasi/libFoundation.a(NSRegularExpression.swift.obj): undefined symbol: kCFAllocatorSystemDefault