Package.swift (25 lines of code) (raw):

// swift-tools-version:5.0 import PackageDescription let package = Package( name: "BoltsSwift", platforms: [.macOS(.v10_10), .iOS(.v8), .tvOS(.v9), .watchOS(.v3)], products: [ .library( name: "BoltsSwift", targets: ["BoltsSwift"]) ], targets: [ .target( name: "BoltsSwift", path: "Sources/BoltsSwift"), .testTarget( name: "BoltsSwiftTests", dependencies: ["BoltsSwift"], path: "Tests") ], swiftLanguageVersions: [.v4, .v4_2, .v5] )