On Darwin, pass CMAKE_OSX_ARCHITECTURES with just the host during the CMake portion of the bootstrap.  This makes bootstrapping immune to whatever defaults are set in swift-llbuild's own CMake files.
On Darwin, pass CMAKE_OSX_ARCHITECTURES with just the host during the CMake portion of the bootstrap.  This makes bootstrapping immune to whatever defaults are set in swift-llbuild's own CMake files.

abertelrud/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,apple/swift-package-manager,abertelrud/swift-package-manager