This might be better posted as a swiftly issue, but it is mainly of interest to people that use macros.
It appears that pre-built swift-syntax is only available only for the xcode tool chain.
[I] Opaque> swiftly use xcode
The global default toolchain has been set to `xcode` (was 6.2.4)
[I] Opaque> swift --version
swift-driver version: 1.127.15 Apple Swift version 6.2.4 (swiftlang-6.2.4.1.4 clang-1700.6.4.2)
Target: arm64-apple-macosx26.0
I] Opaque> swift build -c release
... blah, blah
Building for production...
[17/17] Linking opaque
Build complete! (14.34s)
[I] Opaque> swiftly use 6.2.4
The global default toolchain has been set to `Swift 6.2.4` (was Xcode)
[I] Opaque> swift --version
Apple Swift version 6.2.4 (swift-6.2.4-RELEASE)
Target: arm64-apple-macosx26.0
Build config: +assertions
Opaque> rm -rf .build .swiftpm
... blah, blah
Building for production...
ld: warning: building for macOS-12.0, but linking with dylib '/usr/lib/swift/libswiftCore.dylib' which was built for newer version 13.0
ld: warning: building for macOS-12.0, but linking with dylib '/usr/lib/swift/libswift_Builtin_float.dylib' which was built for newer version 13.0
ld: warning: building for macOS-12.0, but linking with dylib '/usr/lib/swift/libswift_Concurrency.dylib' which was built for newer version 13.0
[50/50] Linking opaque
Build complete! (205.47s)
- Am I missing something?
- If not, could swiftly install have a flag that tells it to build swift-syntax?
I get a similar long build time after swiftly use 6.4.0, and the same warnings.