Thanks, I'll remove the -k flag. I was able to build V9,4 for D12.3 OK, but Embarcadero was not, which is why it's not in GetIt.
For C++ Win64 old, I get four unresolved external errors I don't understand, and Win64 Modern fails completely because the compiler does not export the correct symbol files, reported last year but not fixed in D12.3, yet.
Angus