CMake | |
================================================================================ | |
(www.cmake.org) | |
SDL's build system was traditionally based on autotools. Over time, this | |
approach has suffered from several issues across the different supported | |
platforms. | |
To solve these problems, a new build system based on CMake is under development. | |
It works in parallel to the legacy system, so users can experiment with it | |
without complication. | |
While still experimental, the build system should be usable on the following | |
platforms: | |
* FreeBSD | |
* Linux | |
* VS.NET 2010 | |
* MinGW and Msys | |
* macOS, iOS, and tvOS, with support for XCode | |
================================================================================ | |
Usage | |
================================================================================ | |
Assuming the source for SDL is located at ~/sdl | |
cd ~ | |
mkdir build | |
cd build | |
cmake ../sdl | |
This will build the static and dynamic versions of SDL in the ~/build directory. | |
================================================================================ | |
Usage, iOS/tvOS | |
================================================================================ | |
CMake 3.14+ natively includes support for iOS and tvOS. SDL binaries may be built | |
using Xcode or Make, possibly among other build-systems. | |
When using a recent version of CMake (3.14+), it should be possible to: | |
- build SDL for iOS, both static and dynamic | |
- build SDL test apps (as iOS/tvOS .app bundles) | |
- generate a working SDL_config.h for iOS (using SDL_config.h.cmake as a basis) | |
To use, set the following CMake variables when running CMake's configuration stage: | |
- `CMAKE_SYSTEM_NAME=<OS>` (either `iOS` or `tvOS`) | |
- `CMAKE_OSX_SYSROOT=<SDK>` (examples: `iphoneos`, `iphonesimulator`, `iphoneos12.4`, `/full/path/to/iPhoneOS.sdk`, | |
`appletvos`, `appletvsimulator`, `appletvos12.4`, `/full/path/to/AppleTVOS.sdk`, etc.) | |
- `CMAKE_OSX_ARCHITECTURES=<semicolon-separated list of CPU architectures>` (example: "arm64;armv7s;x86_64") | |
### Examples (for iOS/tvOS): | |
- for iOS-Simulator, using the latest, installed SDK: | |
`cmake ~/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphonesimulator -DCMAKE_OSX_ARCHITECTURES=x86_64` | |
- for iOS-Device, using the latest, installed SDK, 64-bit only | |
`cmake ~/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos -DCMAKE_OSX_ARCHITECTURES=arm64` | |
- for iOS-Device, using the latest, installed SDK, mixed 32/64 bit | |
`cmake ~/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos -DCMAKE_OSX_ARCHITECTURES="arm64;armv7s"` | |
- for iOS-Device, using a specific SDK revision (iOS 12.4, in this example): | |
`cmake ~/sdl -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphoneos12.4 -DCMAKE_OSX_ARCHITECTURES=arm64` | |
- for iOS-Simulator, using the latest, installed SDK, and building SDL test apps (as .app bundles): | |
`cmake ~/sdl -DSDL_TESTS=1 -DCMAKE_SYSTEM_NAME=iOS -DCMAKE_OSX_SYSROOT=iphonesimulator -DCMAKE_OSX_ARCHITECTURES=x86_64` | |
- for tvOS-Simulator, using the latest, installed SDK: | |
`cmake ~/sdl -DCMAKE_SYSTEM_NAME=tvOS -DCMAKE_OSX_SYSROOT=appletvsimulator -DCMAKE_OSX_ARCHITECTURES=x86_64` | |
- for tvOS-Device, using the latest, installed SDK: | |
`cmake ~/sdl -DCMAKE_SYSTEM_NAME=tvOS -DCMAKE_OSX_SYSROOT=appletvos -DCMAKE_OSX_ARCHITECTURES=arm64` |