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# CMake build instructions
## Recommended usage : Incorporating cpu_features into a CMake project
For API / ABI compatibility reasons, it is recommended to build and use
cpu_features in a subdirectory of your project or as an embedded dependency.
This is similar to the recommended usage of the googletest framework
( https://github.com/google/googletest/blob/master/googletest/README.md )
Build and use step-by-step
1- Download cpu_features and copy it in a sub-directory in your project.
or add cpu_features as a git-submodule in your project
2- You can then use the cmake command `add_subdirectory()` to include
cpu_features directly and use the `cpu_features` target in your project.
3- Add the `cpu_features` target to the `target_link_libraries()` section of
your executable or of your library.
## Disabling tests
CMake default options for cpu_features is `Release` built type with tests
enabled. To disable testing set cmake `BUILD_TESTING` variable to `OFF`.
e.g.
```sh
cmake -S. -Bbuild -DBUILD_TESTING=OFF
```
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