On Monday June 13 2022 21:40:19 Chris Jones wrote: I did indeed misread; I should have realised that 10.11 predates ARM Macs by too much.
>Macports only supports buidling against the sdk you would ‘naturally’ get >installing the Xcode/CLT version supported on a given OS. Whilst it might be >possible in a hacking way to install a newer SDK on alder OS, this is not >something macports can realistically support. Ryan has a recent port that installs (I think) any of the available SDKs and I got the impression it was possible to build ports against these SDKs. However, I wasn't thinking about building within MacPorts. I first installed MacPorts as an easy way to obtain libraries that I needed for my own software (and Qt binaries for Mac were long if not still built against dependencies installed through MacPorts). That's the context I had in mind - there is very little point to (locally) building ports for an architecture you can't run. Anyway, I've got an answer to my original question. R.