Package.swift

// swift-tools-version: 5.7
// The swift-tools-version declares the minimum version of Swift required to build this package.

import PackageDescription

var buildSettings: [CXXSetting] = [
    .define("DEBUG", to: "1", .when(configuration: .debug)),
    .define("U_ATTRIBUTE_DEPRECATED", to: ""),
    .define("U_SHOW_CPLUSPLUS_API", to: "1"),
    .define("U_SHOW_INTERNAL_API", to: "1"),
    .define("U_STATIC_IMPLEMENTATION"),
    .define("U_TIMEZONE", to: "_timezone", .when(platforms: [.windows])),
    .define("U_TIMEZONE", to: "timezone",
            .when(platforms: [
                .iOS,
                .macOS,
                .tvOS,
                .watchOS,
                .macCatalyst,
                .driverKit,
                .android,
                .linux,
            ])),
    .define("U_TIMEZONE_PACKAGE", to: "\"icutz44l\""),
    .define("U_HAVE_TZSET", to: "0", .when(platforms: [.wasi])),
    .define("U_HAVE_TZNAME", to: "0", .when(platforms: [.wasi])),
    .define("U_HAVE_TIMEZONE", to: "0", .when(platforms: [.wasi])),
    .define("FORTIFY_SOURCE", to: "2"),
    .define("STD_INSPIRED"),
    .define("MAC_OS_X_VERSION_MIN_REQUIRED", to: "101500"),
    .define("_WASI_EMULATED_SIGNAL", .when(platforms: [.wasi])),
    .define("_WASI_EMULATED_MMAN", .when(platforms: [.wasi])),
    .define("U_HAVE_STRTOD_L", to: "1"),
    .define("U_HAVE_XLOCALE_H", to: "1"),
    .define("U_HAVE_STRING_VIEW", to: "1"),
    .define("U_DISABLE_RENAMING", to: "1"),
    .define("U_COMBINED_IMPLEMENTATION"),
    .define("U_COMMON_IMPLEMENTATION"),
    .define("U_I18N_IMPLEMENTATION"),
    .define("U_IO_IMPLEMENTATION"),
    .define("HAVE_DLFCN_H", to: "0", .when(platforms: [.wasi])),
    .define("HAVE_DLOPEN", to: "0", .when(platforms: [.wasi])),
    .define("U_ENABLE_DYLOAD", to: "0", .when(platforms: [.wasi])),

    // Where data are stored
    .define("ICU_DATA_DIR", to: "\"/usr/share/icu/\""),
    .define("USE_PACKAGE_DATA", to: "1"),
    .define("APPLE_ICU_CHANGES", to: "1"),
    
    .headerSearchPath("common"),
    .headerSearchPath("io"),
    .headerSearchPath("i18n"),
    .define("SWIFT_PACKAGE", to: "1", .when(platforms: [.linux])),
]

#if os(Windows)
buildSettings.append(contentsOf: [
    .define("_CRT_SECURE_NO_DEPRECATE"),
    .define("U_PLATFORM_USES_ONLY_WIN32_API"),
])
#endif

let linkerSettings: [LinkerSetting] = [
    .linkedLibrary("wasi-emulated-signal", .when(platforms: [.wasi])),
    .linkedLibrary("wasi-emulated-mman", .when(platforms: [.wasi])),
]

let package = Package(
    name: "FoundationICU",
    products: [
        .library(
            name: "_FoundationICU",
            targets: [
                "_FoundationICU"
            ]
        )
    ],
    targets: [
        .target(
            name: "_FoundationICU",
            path: "icuSources",
            exclude: ["stubdata"],
            cxxSettings: buildSettings,
            linkerSettings: linkerSettings
        )
    ],
    cxxLanguageStandard: .cxx14
)