Commits
Max Howell committed e4bff9d9168
Can build with toolchain other than swift-build’s This is an essential part of the puzzle that is: * swift-build requires Swift 3 to build and consume Package.swift * Many packages exist that require Swift 2.2 The workaround here is to set `SWIFT_EXEC`, swift-build will use its toolchain for the parts that are intrinsically coupled to the toolchain, but composes a build-YAML that uses the toolchain with which `SWIFT_EXEC` is a part. Since SWIFT_EXEC is an expected feature, we are adapting it here, but it may make more sense long-term to have a dedicated `--toolchain` flag.