CMAKE_ANDROID_NDK
When Cross Compiling for Android with the NDK, this variable holds the absolute path to the root directory of the NDK. The directory must contain a platforms
subdirectory holding the android-<api>
directories.
© 2000–2020 Kitware, Inc. and Contributors
Licensed under the BSD 3-clause License.
https://cmake.org/cmake/help/v3.15/variable/CMAKE_ANDROID_NDK.html