swift-build issue with swift-build

[ktoso]

it looks like the swiftbuild swift-build Swift build breaks swift-java since the .build directory is laid out differently.

error: Build input file cannot be found: 'JavaAsync/.build/out/Products/Debug/SwiftJavaTool'. Did you forget to declare this file as an output of a script phase or custom build rule which produces it?

[marcprux]

We are tracking these sort of breakages at swiftlang/swift-build#1363

I think the current consensus is that the exact build output path should be ascertained by invoking swift build --swift-sdk xxx --show-bin-path, which should work for both --build-system native and --build-system swiftbuild

$ swift build --show-bin-path --build-system native            
.../.build/arm64-apple-macosx/debug

$ swift build --show-bin-path --build-system swiftbuild
.../.build/out/Products/Debug

[etcwilde]

This is likely related to #281. Xcode of course used swift-build before SwiftPM made it the default.