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May 22, 2020 00:05
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Cross-Compiling for iOS with Bake
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| { | |
| // Set `BAKE_OS` to the lowercase, shorthand OS name that matches what | |
| // clang expects for the `sys` portion of the "target triple." See | |
| // clang's cross-compilation docs for more info: | |
| // https://clang.llvm.org/docs/CrossCompilation.html | |
| // Set `BAKE_ARCHITECTURE` to the target architecture (the `arch` portion | |
| // of clang's target triple). To compile for multiple architectures, build | |
| // them one by one and use the `lipo` tool to merge them together. | |
| // Set `DEPLOYMENT_TARGET` to the minimum target OS version you support. | |
| // Be mindful of what Apple hardware actually runs on your given | |
| // archtecture + deployment target combo. | |
| // Set `SDK_NAME` to the official lowercase SDK name that's installed on | |
| // your host machine. Use `xcodebuild -showsdks` to find the appropriate | |
| // `SDK_NAME` for your target platform. | |
| // Set `SDK_ROOT` to the full path pointing to the installed target SDK. | |
| // Use `xcrun --sdk MY_SDK_NAME --show-sdk-path` to find the `SDK_ROOT` for | |
| // your target platform. Be sure to replace `MY_SDK_NAME` with the name | |
| // used for `SDK_NAME`. | |
| // To use the version of clang packaged with your target SDK, set the | |
| // `CC` environment variable to the result of this Terminal command (swap | |
| // "iphoneos" with your target SDK name): | |
| // `xcrun --sdk iphoneos --find clang`. | |
| // | |
| // As of 2020-05-21, using a non-standard version of clang requires a small | |
| // patch to Bake's `lang.c` driver. See this pull request for details: | |
| // https://github.com/SanderMertens/bake/pull/67 | |
| "environment": { | |
| "macos": { | |
| "BAKE_OS": "macos", | |
| "BAKE_ARCHITECTURE": "x86_64", | |
| // El Capitan+ | |
| "DEPLOYMENT_TARGET": "10.11", | |
| "SDK_NAME": "macosx", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk" | |
| }, | |
| "ios": { | |
| "BAKE_OS": "ios", | |
| // iOS 7.0+. Includes iPhone 5s/SE, iPad Air, and everything since | |
| // To target 32 bit devices, set this to "arm", and add `-arch` flags | |
| // to the compiler for each architecture. For example: | |
| // `-arch armv7 -arch armv7s -arch arm64` | |
| "BAKE_ARCHITECTURE": "arm64", | |
| "DEPLOYMENT_TARGET": "7.0", | |
| "SDK_NAME": "iphoneos", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS.sdk" | |
| }, | |
| "ios-simulator": { | |
| "BAKE_OS": "ios", | |
| "BAKE_ARCHITECTURE": "x86_64", | |
| "DEPLOYMENT_TARGET": "7.0", | |
| "SDK_NAME": "iphonesimulator", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk" | |
| }, | |
| "tvos": { | |
| "BAKE_OS": "tvos", | |
| // Apple TV 4+ | |
| "BAKE_ARCHITECTURE": "arm64", | |
| // 9.0+ for 4th generation hardware, 13.0+ for Apple Arcade apps | |
| "DEPLOYMENT_TARGET": "9.0", | |
| "SDK_NAME": "appletvos", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVOS.platform/Developer/SDKs/AppleTVOS.sdk" | |
| }, | |
| "tvos-simulator": { | |
| "BAKE_OS": "tvos", | |
| "BAKE_ARCHITECTURE": "x86_64", | |
| "DEPLOYMENT_TARGET": "9.0", | |
| "SDK_NAME": "appletvsimulator", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/AppleTVSimulator.platform/Developer/SDKs/AppleTVSimulator.sdk" | |
| }, | |
| "watchos": { | |
| "BAKE_OS": "watchos", | |
| // Apple Watch Series 4+ (use armv7k for Series 3 and under) | |
| "BAKE_ARCHITECTURE": "arm64_32", | |
| "DEPLOYMENT_TARGET": "5.0", | |
| "SDK_NAME": "watchos", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/WatchOS.platform/Developer/SDKs/WatchOS.sdk" | |
| }, | |
| "watchos-simulator": { | |
| "BAKE_OS": "watchos", | |
| "BAKE_ARCHITECTURE": "x86_64", | |
| "DEPLOYMENT_TARGET": "5.0", | |
| "SDK_NAME": "watchsimulator", | |
| "SDK_ROOT": "/Applications/Xcode.app/Contents/Developer/Platforms/WatchSimulator.platform/Developer/SDKs/WatchSimulator.sdk" | |
| } | |
| } | |
| } |
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| { | |
| // `use` this package in ALL projects that need to be cross-compiled. | |
| // That includes all project dependencies, such as `bake.util`. | |
| // Then, to build for your target platform, run a recursive rebuild | |
| // in the target environment: `bake rebuild -r --env ios` | |
| "id": "apple", | |
| "type": "package", | |
| "value": { | |
| "language": "none" | |
| }, | |
| "dependee": { | |
| "lang.c": { | |
| "cflags": [ | |
| "-fembed-bitcode", | |
| "-target $BAKE_ARCHITECTURE-apple-$BAKE_OS", | |
| "-isysroot $SDK_ROOT", | |
| "-m$SDK_NAME-version-min=$DEPLOYMENT_TARGET" | |
| ], | |
| "ldflags": [ | |
| "-fembed-bitcode", | |
| "-target $BAKE_ARCHITECTURE-apple-$BAKE_OS", | |
| "-isysroot $SDK_ROOT", | |
| "-m$SDK_NAME-version-min=$DEPLOYMENT_TARGET" | |
| ] | |
| } | |
| } | |
| } |
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