lipo

can create universal binaries from Mach-O files, extract regular object files from universal binaries, and display architecture information about both universal and regular files.

man: https://llvm.org/docs/CommandGuide/llvm-lipo.html

пример:

lipo -archs <binary path>

С помощью file можно проверить, что это mach-O:

file <binary> | grep Mach-O