Undefined symbols when building IVAS via cmake.

How to reproduce.

Configure and build via CMake:

git checkout main
cmake -DWMOPS=ON -S . -B build
cmake --build build

Error:

...
ld: symbol(s) not found for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
gmake[2]: *** [CMakeFiles/ambi_converter.dir/build.make:103: ambi_converter] Error 1
gmake[1]: *** [CMakeFiles/Makefile2:1499: CMakeFiles/ambi_converter.dir/all] Error 2
gmake: *** [Makefile:146: all] Error 2