SE-0387 --toolset flag not implemented?

xtremekforever · September 21, 2024, 10:31pm

In the proposal SE-0387 the section labeled "toolset.json Files" talks about being able to pass toolset.json files to swift build, swift test, and swift run:

github.com

swiftlang/swift-evolution/blob/main/proposals/0387-cross-compilation-destinations.md#toolsetjson-files

# Swift SDKs for Cross-Compilation

* Proposal: [SE-0387](0387-cross-compilation-destinations.md)
* Authors: [Max Desiatov](https://github.com/MaxDesiatov), [Saleem Abdulrasool](https://github.com/compnerd), [Evan Wilde](https://github.com/etcwilde)
* Review Manager: [Mishal Shah](https://github.com/shahmishal)
* Status: **Accepted**
* Implementation: [apple/swift-package-manager#5911](https://github.com/apple/swift-package-manager/pull/5911),
  [apple/swift-package-manager#5922](https://github.com/apple/swift-package-manager/pull/5922),
  [apple/swift-package-manager#6023](https://github.com/apple/swift-package-manager/pull/6023), 
  [apple/swift-package-manager#6186](https://github.com/apple/swift-package-manager/pull/6186)
* Review: ([pitch](https://forums.swift.org/t/pitch-cross-compilation-destination-bundles/61777))
  ([first review](https://forums.swift.org/t/se-0387-cross-compilation-destination-bundles/62875))
  ([second review](https://forums.swift.org/t/second-review-se-0387-cross-compilation-destination-bundles/64660))

## Table of Contents

- [Introduction](#introduction)
- [Motivation](#motivation)
- [Proposed Solution](#proposed-solution)
- [Detailed Design](#detailed-design)

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However, today in Swift 6.0, if I try to use the --toolset flag, it doesn't exist:

$ swift build --toolset
error: Unknown option '--toolset'
Usage: swift build <options>
  See 'build -help' for more information.

What happened to this? Is it a feature that is coming soon, or was it seen as something that wasn't needed to be implemented from SE-0387?

wes1 · September 22, 2024, 7:00am

SE-387 seems to be accepted but not in any toolchain AFAICT.

A good summary of what's in 6.0 is in the changelog

https://github.com/swiftlang/swift/blob/main/CHANGELOG.md

A good summary of evolution proposal status is on the site

https://www.swift.org/swift-evolution/

(That's linked from the swift-evolution repository readme, but I wasn't able to find that linked from the swift.org site.)

Finagolfin · September 22, 2024, 7:43am

No, it's been in since 5.9 last year, though obviously a few flags/features like this might have been missed. The static linux SDK is built using this new SDK bundle format.

xtremekforever · September 22, 2024, 12:39pm

It's too bad. I was hoping on being able to just pass a --toolset file to swift build instead of having to create a whole SDK just to cross compile for my embedded STM32C011...

It's unfortunate that this is only half baked so far!