How to build universal binary using 3rd party lib

Hi

I am building my component for M1. I choose the universal binary. My component uses Boost static lib. Boost builds for x86_64 and arm64 separately.

XCode does not provide two options to link different arch libs. Please suggest to me how to link a lib if 3rd party build process does not offer universal static lib.

Regards,
Anand Choubey