Link issue in iOS

Hi, using FMOD 2.01.11 and Unity 2020.3.16f1. We have a bit of custom build process and I have to setup xcode project by hand. So, I added the libfmodstudiounitypluginL.a to additional linker flags, the library is found, however I’m getting linker errors:

Undefined symbols for architecture arm64:
“_RegisterSuspendCallback”, referenced from:
_RuntimeManager_RegisterSuspendCallback_m92B896BE61A1D1AD94FB4740EF918E6BBE629DAF in FMODUnity.o
(maybe you meant: _RuntimeManager_RegisterSuspendCallback_m92B896BE61A1D1AD94FB4740EF918E6BBE629DAF)

“_FmodUnityNativePluginInit”, referenced from:
_PlatformIOS_FmodUnityNativePluginInit_mF67E34DCBDB31DD307300410F3164FA8B735AFC6 in FMODUnity.o
(maybe you meant: _PlatformIOS_FmodUnityNativePluginInit_mF67E34DCBDB31DD307300410F3164FA8B735AFC6)

What am I missing?

Found it, need to manually add platform_ios.mm and fmodplugins.cpp.