cmake 3.21 or higher compilation error

[lzhiyong]

Starting from Android NDK r23, toolchain files will be delegated to CMake's built-in support when using CMake 3.21 or higher, but natively compiling on an Android host doesn't supported by cmake, so the cmake can't detect the Ndk clang compiler correctly, more infomation please see https://developer.android.com/ndk/guides/cmake

If you use termux's cmake or other, you need to patch it at cmake/share/cmake-xxx/Modules/Platform, please see patches/cmake, or use the cmake provided by me, which has been patched at android-sdk/cmake

[lzhiyong]