A CMake toolchain file for iOS, watchOS and tvOS development with full simulator support and toggable options!

NEW!

• Now exposes Autoconf compatible triples, accessible via the APPLE_TARGET_TRIPLE variable.

ios-cmake

Tested with the following combinations:

• XCode 8.3, iOS SDK 10.3
• XCode 9.4, iOS SDK 11.4
• XCode 10.2, iOS SDK 12.2
• XCode 11.1, iOS SDK 13.1
• XCode 11.3, iOS SDK 13.3
• XCode 12.2, iOS SDK 14.2

Example usage

NOTE: The below commands will build for 64-bit simulator only. Change the -DPLATFORM to the applicable value if targeting another platform.

cd example/example-lib
mkdir build
cd build
cmake .. -G Xcode -DCMAKE_TOOLCHAIN_FILE=../../ios.toolchain.cmake -DPLATFORM=OS64COMBINED
cmake --build . --config Release --target install

This will build and install the library for the given IOS_PLATFORM.

Options

• Set -DPLATFORM to "SIMULATOR" to build for iOS simulator 32 bit (i386) DEPRECATED
• Set -DPLATFORM to "SIMULATOR64" (example above) to build for iOS simulator 64 bit (x86_64)
• Set -DPLATFORM to "SIMULATORARM64" to build for iOS simulator 64 bit (arm64)
• Set -DPLATFORM to "OS" to build for Device (armv7, armv7s, arm64)
• Set -DPLATFORM to "OS64" to build for Device (arm64)
• Set -DPLATFORM to "OS64COMBINED" to build for Device & Simulator (FAT lib) (arm64, x86_64)
• Set -DPLATFORM to "TVOS" to build for tvOS (arm64)
• Set -DPLATFORM to "TVOSCOMBINED" to build for tvOS & Simulator (arm64, x86_64)
• Set -DPLATFORM to "SIMULATOR_TVOS" to build for tvOS Simulator (x86_64)
• Set -DPLATFORM to "WATCHOS" to build for watchOS (armv7k, arm64_32)
• Set -DPLATFORM to "WATCHOSCOMBINED" to build for watchOS & Simulator (armv7k, arm64_32, i386)
• Set -DPLATFORM to "SIMULATOR_WATCHOS" to build for watchOS Simulator (i386)

COMBINED Options

The options called *COMBINED (OS64COMBINED, TVOSCOMBINED and WATCHOSCOMBINED) will build complete FAT-libraries for the given platform. These FAT-libraries include slices for both device and simulator, making the distribution and usage of the library much more simple!

NOTE: The COMBINED options ONLY work with the Xcode generator (-G Xcode), together with a install-target (see example above).

Exposed Variables

XCODE_VERSION - Version number (not including Build version) of Xcode detected.

SDK_VERSION - Version of SDK being used.

CMAKE_OSX_ARCHITECTURES - Architectures being compiled for (generated from PLATFORM).

APPLE_TARGET_TRIPLE - Used by autoconf build systems. NOTE: If "ARCHS are overridden, this will NOT be set!

Additional Options

-DENABLE_BITCODE=(BOOL) - Enabled by default, specify FALSE or 0 to disable bitcode

-DENABLE_ARC=(BOOL) - Enabled by default, specify FALSE or 0 to disable ARC

-DENABLE_VISIBILITY=(BOOL) - Disabled by default, specify TRUE or 1 to enable symbol visibility support

-DENABLE_STRICT_TRY_COMPILE=(BOOL) - Disabled by default, specify TRUE or 1 to enable strict compiler checks (will run linker on all compiler checks whenever needed)

-DARCHS=(STRING) - Valid values are: armv7, armv7s, arm64, i386, x86_64, armv7k, arm64_32. By default it will build for all valid architectures based on -DPLATFORM (see above)

To combine all platforms into the same FAT-library, either build any of the "COMBINED" platform types OR use the LIPO tool. More information on how to combine libraries with LIPO is readily available on the net.

Thanks To

• natbro for adding tvOS support
• MSNexploder for adding OS64 and arm64e support
• garryyan for adding watchOS support

Notes

Parts of the original toolchain comes from a similar project found on code.google.com