Xcode 8b4 and toolchain

[TofPlay]

• carthage version: 0.17.2
• xcodebuild -version: Xcode 7.3.1 Build version 7D1014
• Are you using --no-build? No
• Are you using --no-use-binaries? Yes
• Are you using --use-submodules? No

I have to work Xcode 7 and Swift 2.2 projects and prepare the migration to Xcode 8 and Swift 3. Actually each time I want to build project for Swift 3 I'm using xcode-select to switch to Xcode 8 environment and vice versa. In time it's pretty constraining to do so.
I saw that Carthage was an option toolchain. But I have not found how to have the list of toolchains available on the Mac .
Is there an option with Carthage to list the available toolchains (beta version included)?

[hyperspacemark]

No way to list the available toolchains (that I'm aware of) but the reverse domain identifiers follow the format com.apple.dt.toolchain.{TOOLCHAIN NAME}. The available toolchains are inside the Xcode package at /Application/Xcode.app/Developer/Toolchains.

So for Swift 2.3 you'd pass --toolchain com.apple.dt.toolchain.Swift_2_3 and for Swift 3 you'd pass --toolchain com.apple.dt.toolchain.XcodeDefault.

[ikesyo]

Closing this due to inactivity. Feel free to reopen if you have any updates on this.