For target architecture = ARM c flags is not updated -mfpu=neon in [CMakeLists.txt](https://github.com/google/mathfu/blob/master/CMakeLists.txt) and [Android.mk](https://github.com/google/mathfu/blob/master/jni/Android.mk). In both files, by default, flag "-msse4.1" is passed for the ARM platform on which I tried to build. `Linux ubuntu 5.4.0-1046-raspi #50-Ubuntu SMP PREEMPT Thu Oct 28 05:32:10 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux`
For target architecture = ARM c flags is not updated -mfpu=neon in CMakeLists.txt and Android.mk.
In both files, by default, flag "-msse4.1" is passed for the ARM platform on which I tried to build.
Linux ubuntu 5.4.0-1046-raspi #50-Ubuntu SMP PREEMPT Thu Oct 28 05:32:10 UTC 2021 aarch64 aarch64 aarch64 GNU/Linux