Can I get more cmsis fast math functions?

Libdaisys cmsis library is missing the arctan2 function, arm_atan2_f32, from the documented fast math functions online. Is there any way I can add this to my local daisy build environment? I’m not really familiar with how the library are built. Also I’d like to try out the square root function as well.

If not, can anyone point me to some good atan2 approximations optimised for real time dsp?

I see theres an atan2 implementation in the Mutable Instruments stmlib. What do I need to add to my makefile to access that?