(replied to dev list, seems more appropriate)
I think you can cross-compile for arm on intel if you have xcode 12.2 (which I believe requires MacOS 10.15 Catalina)
https://developer.apple.com/documentation/apple-silicon/building-a-universal-macos-binary

-seb

-----Original Message-----
From: Alexandre Torres Porres <porres@gmail.com>
To: Pd-List <pd-list@lists.iem.at>
Sent: Thu, Mar 10, 2022 11:29 am
Subject: [PD] how to compile externals for apple silicon?

In my next update of my libraries I wanna see if I can provide externals for M1 macs.

I'm assuming I need an apple silicon computer for that, right? Since I don't, I'll ask for someone who has one to help me.

Now, what's the next step, is pdlibbuilder ready for apple silicon macs?

I see zexy is already provided for apple silicon by the way.

cheers 
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