building on macOS 14

[Alan Snyder]

> On Nov 3, 2023, at 11:54 AM, erik.joelsson at oracle.com wrote:
> 
> If you change out the toolchain through xcode-select, then you definitely need to reconfigure after. I would expect the configuration to be quite messed up if you don’t..
> 

OK, but I think it is a bug when an error message is inserted into generated code.

Is the message written to stdout instead of stderr?