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

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 "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

luoyin500/ios-cmake